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I had to go twice through the history to get a grasp at this code.
De-duplicate the various tests in one common helper to make it
more explicit.
Note that the `HID_UP_KEYBOARD + 1` condition is tested through
https://gitlab.freedesktop.org/libevdev/hid-tools/-/merge_requests/121
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Ping Cheng <ping.cheng@wacom.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This is a preparation patch for rethinking the generic processing
of HID reports.
We can actually pre-allocate all of our memory instead of dynamically
allocating/freeing it whenever we parse a report.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Ping Cheng <ping.cheng@wacom.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Jiri Kosina:
- memory leak fix for hid-elo driver (Dongliang Mu)
- fix for hangs on newer AMD platforms with amd_sfh-driven hardware
(Basavaraj Natikar )
- locking fix in i2c-hid (Daniel Thompson)
- a few device-ID specific quirks
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
HID: amd_sfh: Add interrupt handler to process interrupts
HID: amd_sfh: Add functionality to clear interrupts
HID: amd_sfh: Disable the interrupt for all command
HID: amd_sfh: Correct the structure field name
HID: amd_sfh: Handle amd_sfh work buffer in PM ops
HID:Add support for UGTABLET WP5540
HID: amd_sfh: Add illuminance mask to limit ALS max value
HID: amd_sfh: Increase sensor command timeout
HID: i2c-hid: goodix: Fix a lockdep splat
HID: elo: fix memory leak in elo_probe
HID: apple: Set the tilde quirk flag on the Wellspring 5 and later
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- yield CPU more often when defragmenting a large file
- skip defragmenting extents already under writeback
- improve error message when send fails to write file data
- get rid of warning when mounted with 'flushoncommit'
* tag 'for-5.17-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: send: in case of IO error log it
btrfs: get rid of warning on transaction commit when using flushoncommit
btrfs: defrag: don't try to defrag extents which are under writeback
btrfs: don't hold CPU for too long when defragging a file
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc architecture fixes from Helge Deller:
- Fix miscompilations when function calls are made from inside a
put_user() call
- Drop __init from map_pages() declaration to avoid random boot crashes
- Added #error messages if a 64-bit compiler was used to build a 32-bit
kernel (and vice versa)
- Fix out-of-bound data TLB miss faults in sba_iommu and ccio-dma
drivers
- Add ioread64_lo_hi() and iowrite64_lo_hi() functions to avoid kernel
test robot errors
- Fix link failure when 8250_gsc driver is built without CONFIG_IOSAPIC
* tag 'for-5.17/parisc-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
serial: parisc: GSC: fix build when IOSAPIC is not set
parisc: Fix some apparent put_user() failures
parisc: Show error if wrong 32/64-bit compiler is being used
parisc: Add ioread64_lo_hi() and iowrite64_lo_hi()
parisc: Fix sglist access in ccio-dma.c
parisc: Fix data TLB miss in sba_unmap_sg
parisc: Drop __init from map_pages declaration
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git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull hyperv fixes from Wei Liu:
- Rework use of DMA_BIT_MASK in vmbus to work around a clang bug
(Michael Kelley)
- Fix NUMA topology (Long Li)
- Fix a memory leak in vmbus (Miaoqian Lin)
- One minor clean-up patch (Cai Huoqing)
* tag 'hyperv-fixes-signed-20220215' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
Drivers: hv: utils: Make use of the helper macro LIST_HEAD()
Drivers: hv: vmbus: Rework use of DMA_BIT_MASK(64)
Drivers: hv: vmbus: Fix memory leak in vmbus_add_channel_kobj
PCI: hv: Fix NUMA node assignment when kernel boots with custom NUMA topology
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There is a build error when using a kernel .config file from
'kernel test robot' for a different build problem:
hppa64-linux-ld: drivers/tty/serial/8250/8250_gsc.o: in function `.LC3':
(.data.rel.ro+0x18): undefined reference to `iosapic_serial_irq'
when:
CONFIG_GSC=y
CONFIG_SERIO_GSCPS2=y
CONFIG_SERIAL_8250_GSC=y
CONFIG_PCI is not set
and hence PCI_LBA is not set.
IOSAPIC depends on PCI_LBA, so IOSAPIC is not set/enabled.
Make the use of iosapic_serial_irq() conditional to fix the build error.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-serial@vger.kernel.org
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: Johan Hovold <johan@kernel.org>
Suggested-by: Helge Deller <deller@gmx.de>
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fix from Mark Brown:
"One fix here, for initialisation of regulators that don't have an
in_enabled() operation which would mainly impact cases where they
aren't otherwise used during early setup for some reason"
* tag 'regulator-fix-v5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: core: fix false positive in regulator_late_cleanup()
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On newer AMD platforms with SFH, it is observed that random interrupts
get generated on the SFH hardware and until this is cleared the firmware
sensor processing is stalled, resulting in no data been received to
driver side.
Add routines to handle these interrupts, so that firmware operations are
not stalled.
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Newer AMD platforms with SFH may generate interrupts on some events
which are unwarranted. Until this is cleared the actual MP2 data
processing maybe stalled in some cases.
Add a mechanism to clear the pending interrupts (if any) during the
driver initialization and sensor command operations.
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Sensor data is processed in polling mode. Hence disable the interrupt
for all sensor command.
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Misinterpreted intr_enable field name. Hence correct the structure
field name accordingly to reflect the functionality.
Fixes: f264481ad614 ("HID: amd_sfh: Extend driver capabilities for multi-generation support")
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Since in the current amd_sfh design the sensor data is periodically
obtained in the form of poll data, during the suspend/resume cycle,
scheduling a delayed work adds no value.
So, cancel the work and restart back during the suspend/resume cycle
respectively.
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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After commit 4b9d2a731c3d ("parisc: Switch user access functions
to signal errors in r29 instead of r8") bash suddenly started
to report those warnings after login:
-bash: cannot set terminal process group (-1): Bad file descriptor
-bash: no job control in this shell
It turned out, that a function call inside a put_user(), e.g.:
put_user(vt_do_kdgkbmode(console), (int __user *)arg);
clobbered the error register (r29) and thus the put_user() call itself
seem to have failed.
Rearrange the C-code to pre-calculate the intermediate value
and then do the put_user().
Additionally prefer the "+" constraint on pu_err and gu_err registers
to tell the compiler that those operands are both read and written by
the assembly instruction.
Reported-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Fixes: 4b9d2a731c3d ("parisc: Switch user access functions to signal errors in r29 instead of r8")
Signed-off-by: Helge Deller <deller@gmx.de>
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It happens quite often that people use the wrong compiler to build the
kernel:
make ARCH=parisc -> builds the 32-bit kernel
make ARCH=parisc64 -> builds the 64-bit kernel
This patch adds a sanity check which errors out with an instruction how
use the correct ARCH= option.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v5.15+
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- Fix the truncated path issue for HAVE_GCC_PLUGINS test in Kconfig
- Move -Wunsligned-access to W=1 builds to avoid sprinkling warnings
for the latest Clang
- Fix missing fclose() in Kconfig
- Fix Kconfig to touch dep headers correctly when KCONFIG_AUTOCONFIG is
overridden.
* tag 'kbuild-fixes-v5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kconfig: fix failing to generate auto.conf
kconfig: fix missing fclose() on error paths
Makefile.extrawarn: Move -Wunaligned-access to W=1
kconfig: let 'shell' return enough output for deep path names
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"Interrupt chip driver fixes:
- Don't install an hotplug notifier for GICV3-ITS on systems which do
not need it to prevent a warning in the notifier about inconsistent
state
- Add the missing device tree matching for the T-HEAD PLIC variant so
the related SoC is properly supported"
* tag 'irq-urgent-2022-02-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/sifive-plic: Add missing thead,c900-plic match string
dt-bindings: update riscv plic compatible string
irqchip/gic-v3-its: Skip HP notifier when no ITS is registered
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool fix from Borislav Petkov:
"Fix a case where objtool would mistakenly warn about instructions
being unreachable"
* tag 'objtool_urgent_for_v5.17_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/bug: Merge annotate_reachable() into _BUG_FLAGS() asm
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Borislav Petkov:
"Fix a NULL-ptr dereference when recalculating a sched entity's weight"
* tag 'sched_urgent_for_v5.17_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: Fix fault in reweight_entity
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fix from Borislav Petkov:
"Prevent cgroup event list corruption when switching events"
* tag 'perf_urgent_for_v5.17_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf: Fix list corruption in perf_cgroup_switch()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Borislav Petkov:
"Prevent softlockups when tearing down large SGX enclaves"
* tag 'x86_urgent_for_v5.17_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/sgx: Silence softlockup detection when releasing large enclaves
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Pull cifs fixes from Steve French:
"Three small smb3 reconnect fixes and an error log clarification"
* tag '5.17-rc4-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: mark sessions for reconnection in helper function
cifs: call helper functions for marking channels for reconnect
cifs: call cifs_reconnect when a connection is marked
[smb3] improve error message when mount options conflict with posix
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git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent
Pull irqchip fixes from Marc Zyngier:
- Don't register a hotplug notifier on GICv3 systems that advertise
LPI support, but have no ITS to make use of it
- Add missing DT matching for the thead,c900-plic variant of the
SiFive PLIC
Link: https://lore.kernel.org/r/20220211110038.1179155-1-maz@kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Two minor fixes in the lpfc driver. One changing the classification of
trace messages and the other fixing a build issue when NVME_FC is
disabled"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: lpfc: Reduce log messages seen after firmware download
scsi: lpfc: Remove NVMe support if kernel has NVME_FC disabled
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are a small number of char/misc driver fixes for 5.17-rc4 for
reported issues. They contain:
- phy driver fixes
- iio driver fix
- eeprom driver fix
- speakup regression fix
- fastrpc fix
All of these have been in linux-next with no reported issues"
* tag 'char-misc-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
iio: buffer: Fix file related error handling in IIO_BUFFER_GET_FD_IOCTL
speakup-dectlk: Restore pitch setting
bus: mhi: pci_generic: Add mru_default for Cinterion MV31-W
bus: mhi: pci_generic: Add mru_default for Foxconn SDX55
eeprom: ee1004: limit i2c reads to I2C_SMBUS_BLOCK_MAX
misc: fastrpc: avoid double fput() on failed usercopy
phy: dphy: Correct clk_pre parameter
phy: phy-mtk-tphy: Fix duplicated argument in phy-mtk-tphy
phy: stm32: fix a refcount leak in stm32_usbphyc_pll_enable()
phy: xilinx: zynqmp: Fix bus width setting for SGMII
phy: cadence: Sierra: fix error handling bugs in probe()
phy: ti: Fix missing sentinel for clk_div_table
phy: broadcom: Kconfig: Fix PHY_BRCM_USB config option
phy: usb: Leave some clocks running during suspend
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pullstaging driver fixes from Greg KH:
"Here are two staging driver fixes for 5.17-rc4. These are:
- fbtft error path fix
- vc04_services rcu dereference fix
Both of these have been in linux-next for a while with no reported
issues"
* tag 'staging-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: fbtft: Fix error path in fbtft_driver_module_init()
staging: vc04_services: Fix RCU dereference check
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are four small tty/serial fixes for 5.17-rc4. They are:
- 8250_pericom change revert to fix a reported regression
- two speculation fixes for vt_ioctl
- n_tty regression fix for polling
All of these have been in linux-next for a while with no reported
issues"
* tag 'tty-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
vt_ioctl: add array_index_nospec to VT_ACTIVATE
vt_ioctl: fix array_index_nospec in vt_setactivate
serial: 8250_pericom: Revert "Re-enable higher baud rates"
n_tty: wake up poll(POLLRDNORM) on receiving data
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small USB driver fixes for 5.17-rc4 that resolve some
reported issues and add new device ids:
- usb-serial new device ids
- ulpi cleanup fixes
- f_fs use-after-free fix
- dwc3 driver fixes
- ax88179_178a usb network driver fix
- usb gadget fixes
There is a revert at the end of this series to resolve a build problem
that 0-day found yesterday. Most of these have been in linux-next,
except for the last few, and all have now passed 0-day tests"
* tag 'usb-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
Revert "usb: dwc2: drd: fix soft connect when gadget is unconfigured"
usb: dwc2: drd: fix soft connect when gadget is unconfigured
usb: gadget: rndis: check size of RNDIS_MSG_SET command
USB: gadget: validate interface OS descriptor requests
usb: core: Unregister device on component_add() failure
net: usb: ax88179_178a: Fix out-of-bounds accesses in RX fixup
usb: dwc3: gadget: Prevent core from processing stale TRBs
USB: serial: cp210x: add CPI Bulk Coin Recycler id
USB: serial: cp210x: add NCR Retail IO box id
USB: serial: ftdi_sio: add support for Brainboxes US-159/235/320
usb: gadget: f_uac2: Define specific wTerminalType
usb: gadget: udc: renesas_usb3: Fix host to USB_ROLE_NONE transition
usb: raw-gadget: fix handling of dual-direction-capable endpoints
usb: usb251xb: add boost-up property support
usb: ulpi: Call of_node_put correctly
usb: ulpi: Move of_node_put to ulpi_dev_release
USB: serial: option: add ZTE MF286D modem
USB: serial: ch341: add support for GW Instek USB2.0-Serial devices
usb: f_fs: Fix use-after-free for epfile
usb: dwc3: xilinx: fix uninitialized return value
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Vasily Gorbik:
"Maintainers and reviewers changes:
- Add Alexander Gordeev as maintainer for s390.
- Christian Borntraeger will focus on s390 KVM maintainership and
stays as s390 reviewer.
Fixes:
- Fix clang build of modules loader KUnit test.
- Fix kernel panic in CIO code on FCES path-event when no driver is
attached to a device or the driver does not provide the path_event
function"
* tag 's390-5.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/cio: verify the driver availability for path_event call
s390/module: fix building test_modules_helpers.o with clang
MAINTAINERS: downgrade myself to Reviewer for s390
MAINTAINERS: add Alexander Gordeev as maintainer for s390
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
- Two small cleanups
- Another fix for addressing the EFI framebuffer above 4GB when running
as Xen dom0
- A patch to let Xen guests use reserved bits in MSI- and IO-APIC-
registers for extended APIC-IDs the same way KVM guests are doing it
already
* tag 'for-linus-5.17a-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/pci: Make use of the helper macro LIST_HEAD()
xen/x2apic: Fix inconsistent indenting
xen/x86: detect support for extended destination ID
xen/x86: obtain full video frame buffer address for Dom0 also under EFI
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull seccomp fixes from Kees Cook:
"This fixes a corner case of fatal SIGSYS being ignored since v5.15.
Along with the signal fix is a change to seccomp so that seeing
another syscall after a fatal filter result will cause seccomp to kill
the process harder.
Summary:
- Force HANDLER_EXIT even for SIGNAL_UNKILLABLE
- Make seccomp self-destruct after fatal filter results
- Update seccomp samples for easier behavioral demonstration"
* tag 'seccomp-v5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
samples/seccomp: Adjust sample to also provide kill option
seccomp: Invalidate seccomp mode to catch death failures
signal: HANDLER_EXIT should clear SIGNAL_UNKILLABLE
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Merge misc fixes from Andrew Morton:
"5 patches.
Subsystems affected by this patch series: binfmt, procfs, and mm
(vmscan, memcg, and kfence)"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
kfence: make test case compatible with run time set sample interval
mm: memcg: synchronize objcg lists with a dedicated spinlock
mm: vmscan: remove deadlock due to throttling failing to make progress
fs/proc: task_mmu.c: don't read mapcount for migration entry
fs/binfmt_elf: fix PT_LOAD p_align values for loaders
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When the KCONFIG_AUTOCONFIG is specified (e.g. export \
KCONFIG_AUTOCONFIG=output/config/auto.conf), the directory of
include/config/ will not be created, so kconfig can't create deps
files in it and auto.conf can't be generated.
Signed-off-by: Jing Leng <jleng@ambarella.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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This reverts commit 269cbcf7b72de6f0016806d4a0cec1d689b55a87.
It causes build errors as reported by the kernel test robot.
Link: https://lore.kernel.org/r/202202112236.AwoOTtHO-lkp@intel.com
Reported-by: kernel test robot <lkp@intel.com>
Fixes: 269cbcf7b72d ("usb: dwc2: drd: fix soft connect when gadget is unconfigured")
Cc: stable@kernel.org
Cc: Amelie Delaunay <amelie.delaunay@foss.st.com>
Cc: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Cc: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The parameter kfence_sample_interval can be set via boot parameter and
late shell command, which is convenient for automated tests and KFENCE
parameter optimization. However, KFENCE test case just uses
compile-time CONFIG_KFENCE_SAMPLE_INTERVAL, which will make KFENCE test
case not run as users desired. Export kfence_sample_interval, so that
KFENCE test case can use run-time-set sample interval.
Link: https://lkml.kernel.org/r/20220207034432.185532-1-liupeng256@huawei.com
Signed-off-by: Peng Liu <liupeng256@huawei.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Christian Knig <christian.koenig@amd.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Alexander reported a circular lock dependency revealed by the mmap1 ltp
test:
LOCKDEP_CIRCULAR (suite: ltp, case: mtest06 (mmap1))
WARNING: possible circular locking dependency detected
5.17.0-20220113.rc0.git0.f2211f194038.300.fc35.s390x+debug #1 Not tainted
------------------------------------------------------
mmap1/202299 is trying to acquire lock:
00000001892c0188 (css_set_lock){..-.}-{2:2}, at: obj_cgroup_release+0x4a/0xe0
but task is already holding lock:
00000000ca3b3818 (&sighand->siglock){-.-.}-{2:2}, at: force_sig_info_to_task+0x38/0x180
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (&sighand->siglock){-.-.}-{2:2}:
__lock_acquire+0x604/0xbd8
lock_acquire.part.0+0xe2/0x238
lock_acquire+0xb0/0x200
_raw_spin_lock_irqsave+0x6a/0xd8
__lock_task_sighand+0x90/0x190
cgroup_freeze_task+0x2e/0x90
cgroup_migrate_execute+0x11c/0x608
cgroup_update_dfl_csses+0x246/0x270
cgroup_subtree_control_write+0x238/0x518
kernfs_fop_write_iter+0x13e/0x1e0
new_sync_write+0x100/0x190
vfs_write+0x22c/0x2d8
ksys_write+0x6c/0xf8
__do_syscall+0x1da/0x208
system_call+0x82/0xb0
-> #0 (css_set_lock){..-.}-{2:2}:
check_prev_add+0xe0/0xed8
validate_chain+0x736/0xb20
__lock_acquire+0x604/0xbd8
lock_acquire.part.0+0xe2/0x238
lock_acquire+0xb0/0x200
_raw_spin_lock_irqsave+0x6a/0xd8
obj_cgroup_release+0x4a/0xe0
percpu_ref_put_many.constprop.0+0x150/0x168
drain_obj_stock+0x94/0xe8
refill_obj_stock+0x94/0x278
obj_cgroup_charge+0x164/0x1d8
kmem_cache_alloc+0xac/0x528
__sigqueue_alloc+0x150/0x308
__send_signal+0x260/0x550
send_signal+0x7e/0x348
force_sig_info_to_task+0x104/0x180
force_sig_fault+0x48/0x58
__do_pgm_check+0x120/0x1f0
pgm_check_handler+0x11e/0x180
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&sighand->siglock);
lock(css_set_lock);
lock(&sighand->siglock);
lock(css_set_lock);
*** DEADLOCK ***
2 locks held by mmap1/202299:
#0: 00000000ca3b3818 (&sighand->siglock){-.-.}-{2:2}, at: force_sig_info_to_task+0x38/0x180
#1: 00000001892ad560 (rcu_read_lock){....}-{1:2}, at: percpu_ref_put_many.constprop.0+0x0/0x168
stack backtrace:
CPU: 15 PID: 202299 Comm: mmap1 Not tainted 5.17.0-20220113.rc0.git0.f2211f194038.300.fc35.s390x+debug #1
Hardware name: IBM 3906 M04 704 (LPAR)
Call Trace:
dump_stack_lvl+0x76/0x98
check_noncircular+0x136/0x158
check_prev_add+0xe0/0xed8
validate_chain+0x736/0xb20
__lock_acquire+0x604/0xbd8
lock_acquire.part.0+0xe2/0x238
lock_acquire+0xb0/0x200
_raw_spin_lock_irqsave+0x6a/0xd8
obj_cgroup_release+0x4a/0xe0
percpu_ref_put_many.constprop.0+0x150/0x168
drain_obj_stock+0x94/0xe8
refill_obj_stock+0x94/0x278
obj_cgroup_charge+0x164/0x1d8
kmem_cache_alloc+0xac/0x528
__sigqueue_alloc+0x150/0x308
__send_signal+0x260/0x550
send_signal+0x7e/0x348
force_sig_info_to_task+0x104/0x180
force_sig_fault+0x48/0x58
__do_pgm_check+0x120/0x1f0
pgm_check_handler+0x11e/0x180
INFO: lockdep is turned off.
In this example a slab allocation from __send_signal() caused a
refilling and draining of a percpu objcg stock, resulted in a releasing
of another non-related objcg. Objcg release path requires taking the
css_set_lock, which is used to synchronize objcg lists.
This can create a circular dependency with the sighandler lock, which is
taken with the locked css_set_lock by the freezer code (to freeze a
task).
In general it seems that using css_set_lock to synchronize objcg lists
makes any slab allocations and deallocation with the locked css_set_lock
and any intervened locks risky.
To fix the problem and make the code more robust let's stop using
css_set_lock to synchronize objcg lists and use a new dedicated spinlock
instead.
Link: https://lkml.kernel.org/r/Yfm1IHmoGdyUR81T@carbon.dhcp.thefacebook.com
Fixes: bf4f059954dc ("mm: memcg/slab: obj_cgroup API")
Signed-off-by: Roman Gushchin <guro@fb.com>
Reported-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Tested-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Reviewed-by: Waiman Long <longman@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Reviewed-by: Jeremy Linton <jeremy.linton@arm.com>
Tested-by: Jeremy Linton <jeremy.linton@arm.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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A soft lockup bug in kcompactd was reported in a private bugzilla with
the following visible in dmesg;
watchdog: BUG: soft lockup - CPU#33 stuck for 26s! [kcompactd0:479]
watchdog: BUG: soft lockup - CPU#33 stuck for 52s! [kcompactd0:479]
watchdog: BUG: soft lockup - CPU#33 stuck for 78s! [kcompactd0:479]
watchdog: BUG: soft lockup - CPU#33 stuck for 104s! [kcompactd0:479]
The machine had 256G of RAM with no swap and an earlier failed
allocation indicated that node 0 where kcompactd was run was potentially
unreclaimable;
Node 0 active_anon:29355112kB inactive_anon:2913528kB active_file:0kB
inactive_file:0kB unevictable:64kB isolated(anon):0kB isolated(file):0kB
mapped:8kB dirty:0kB writeback:0kB shmem:26780kB shmem_thp:
0kB shmem_pmdmapped: 0kB anon_thp: 23480320kB writeback_tmp:0kB
kernel_stack:2272kB pagetables:24500kB all_unreclaimable? yes
Vlastimil Babka investigated a crash dump and found that a task
migrating pages was trying to drain PCP lists;
PID: 52922 TASK: ffff969f820e5000 CPU: 19 COMMAND: "kworker/u128:3"
Call Trace:
__schedule
schedule
schedule_timeout
wait_for_completion
__flush_work
__drain_all_pages
__alloc_pages_slowpath.constprop.114
__alloc_pages
alloc_migration_target
migrate_pages
migrate_to_node
do_migrate_pages
cpuset_migrate_mm_workfn
process_one_work
worker_thread
kthread
ret_from_fork
This failure is specific to CONFIG_PREEMPT=n builds. The root of the
problem is that kcompact0 is not rescheduling on a CPU while a task that
has isolated a large number of the pages from the LRU is waiting on
kcompact0 to reschedule so the pages can be released. While
shrink_inactive_list() only loops once around too_many_isolated, reclaim
can continue without rescheduling if sc->skipped_deactivate == 1 which
could happen if there was no file LRU and the inactive anon list was not
low.
Link: https://lkml.kernel.org/r/20220203100326.GD3301@suse.de
Fixes: d818fca1cac3 ("mm/vmscan: throttle reclaim and compaction when too may pages are isolated")
Signed-off-by: Mel Gorman <mgorman@suse.de>
Debugged-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The syzbot reported the below BUG:
kernel BUG at include/linux/page-flags.h:785!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4392 Comm: syz-executor560 Not tainted 5.16.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:PageDoubleMap include/linux/page-flags.h:785 [inline]
RIP: 0010:__page_mapcount+0x2d2/0x350 mm/util.c:744
Call Trace:
page_mapcount include/linux/mm.h:837 [inline]
smaps_account+0x470/0xb10 fs/proc/task_mmu.c:466
smaps_pte_entry fs/proc/task_mmu.c:538 [inline]
smaps_pte_range+0x611/0x1250 fs/proc/task_mmu.c:601
walk_pmd_range mm/pagewalk.c:128 [inline]
walk_pud_range mm/pagewalk.c:205 [inline]
walk_p4d_range mm/pagewalk.c:240 [inline]
walk_pgd_range mm/pagewalk.c:277 [inline]
__walk_page_range+0xe23/0x1ea0 mm/pagewalk.c:379
walk_page_vma+0x277/0x350 mm/pagewalk.c:530
smap_gather_stats.part.0+0x148/0x260 fs/proc/task_mmu.c:768
smap_gather_stats fs/proc/task_mmu.c:741 [inline]
show_smap+0xc6/0x440 fs/proc/task_mmu.c:822
seq_read_iter+0xbb0/0x1240 fs/seq_file.c:272
seq_read+0x3e0/0x5b0 fs/seq_file.c:162
vfs_read+0x1b5/0x600 fs/read_write.c:479
ksys_read+0x12d/0x250 fs/read_write.c:619
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
The reproducer was trying to read /proc/$PID/smaps when calling
MADV_FREE at the mean time. MADV_FREE may split THPs if it is called
for partial THP. It may trigger the below race:
CPU A CPU B
----- -----
smaps walk: MADV_FREE:
page_mapcount()
PageCompound()
split_huge_page()
page = compound_head(page)
PageDoubleMap(page)
When calling PageDoubleMap() this page is not a tail page of THP anymore
so the BUG is triggered.
This could be fixed by elevated refcount of the page before calling
mapcount, but that would prevent it from counting migration entries, and
it seems overkilling because the race just could happen when PMD is
split so all PTE entries of tail pages are actually migration entries,
and smaps_account() does treat migration entries as mapcount == 1 as
Kirill pointed out.
Add a new parameter for smaps_account() to tell this entry is migration
entry then skip calling page_mapcount(). Don't skip getting mapcount
for device private entries since they do track references with mapcount.
Pagemap also has the similar issue although it was not reported. Fixed
it as well.
[shy828301@gmail.com: v4]
Link: https://lkml.kernel.org/r/20220203182641.824731-1-shy828301@gmail.com
[nathan@kernel.org: avoid unused variable warning in pagemap_pmd_range()]
Link: https://lkml.kernel.org/r/20220207171049.1102239-1-nathan@kernel.org
Link: https://lkml.kernel.org/r/20220120202805.3369-1-shy828301@gmail.com
Fixes: e9b61f19858a ("thp: reintroduce split_huge_page()")
Signed-off-by: Yang Shi <shy828301@gmail.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reported-by: syzbot+1f52b3a18d5633fa7f82@syzkaller.appspotmail.com
Acked-by: David Hildenbrand <david@redhat.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Jann Horn <jannh@google.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Rui Salvaterra reported that Aisleroit solitaire crashes with "Wrong
__data_start/_end pair" assertion from libgc after update to v5.17-rc1.
Bisection pointed to commit 9630f0d60fec ("fs/binfmt_elf: use PT_LOAD
p_align values for static PIE") that fixed handling of static PIEs, but
made the condition that guards load_bias calculation to exclude loader
binaries.
Restoring the check for presence of interpreter fixes the problem.
Link: https://lkml.kernel.org/r/20220202121433.3697146-1-rppt@kernel.org
Fixes: 9630f0d60fec ("fs/binfmt_elf: use PT_LOAD p_align values for static PIE")
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Reported-by: Rui Salvaterra <rsalvaterra@gmail.com>
Tested-by: Rui Salvaterra <rsalvaterra@gmail.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: "H.J. Lu" <hjl.tools@gmail.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"This is a fairly large set of bugfixes, most of which had been sent a
while ago but only now made it into the soc tree:
Maintainer file updates:
- Claudiu Beznea now co-maintains the at91 soc family, replacing
Ludovic Desroches.
- Michael Walle maintains the sl28cpld drivers
- Alain Volmat and Raphael Gallais-Pou take over some drivers for ST
platforms
- Alim Akhtar is an additional reviewer for Samsung platforms
Code fixes:
- Op-tee had a problem with object lifetime that needs a slightly
complex fix, as well as another bug with error handling.
- Several minor issues for the OMAP platform, including a regression
with the timer
- A Kconfig change to fix a build-time issue on Intel SoCFPGA
Device tree fixes:
- The Amlogic Meson platform fixes a boot regression on am1-odroid, a
spurious interrupt, and a problem with reserved memory regions
- In the i.MX platform, several bug fixes are needed to make devices
work correctly: SD card detection, alarmtimer, and sound card on
some board. One patch for the GPU got in there by accident and gets
reverted again.
- TI K3 needs a fix for J721S2 serial port numbers
- ux500 needs a fix to mount the SD card as root on the Skomer phone"
* tag 'soc-fixes-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (46 commits)
Revert "arm64: dts: imx8mn-venice-gw7902: disable gpu"
arm64: Remove ARCH_VULCAN
MAINTAINERS: add myself as a maintainer for the sl28cpld
MAINTAINERS: add IRC to ARM sub-architectures and Devicetree
MAINTAINERS: arm: samsung: add Git tree and IRC
ARM: dts: Fix boot regression on Skomer
ARM: dts: spear320: Drop unused and undocumented 'irq-over-gpio' property
soc: aspeed: lpc-ctrl: Block error printing on probe defer cases
docs/ABI: testing: aspeed-uart-routing: Escape asterisk
MAINTAINERS: update drm/stm drm/sti and cec/sti maintainers
MAINTAINERS: Update Benjamin Gaignard maintainer status
ARM: socfpga: fix missing RESET_CONTROLLER
arm64: dts: meson-sm1-odroid: fix boot loop after reboot
arm64: dts: meson-g12: drop BL32 region from SEI510/SEI610
arm64: dts: meson-g12: add ATF BL32 reserved-memory region
arm64: dts: meson-gx: add ATF BL32 reserved-memory region
arm64: dts: meson-sm1-bananapi-m5: fix wrong GPIO domain for GPIOE_2
arm64: dts: meson-sm1-odroid: use correct enable-gpio pin for tf-io regulator
arm64: dts: meson-g12b-odroid-n2: fix typo 'dio2133'
optee: use driver internal tee_context for some rpc
...
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull pci fix from Bjorn Helgaas:
"Revert a commit that reduced the number of IRQs used but resulted in
interrupt storms (Bjorn Helgaas)"
* tag 'pci-v5.17-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
Revert "PCI/portdrv: Do not setup up IRQs if there are no users"
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|
This reverts commit 0e8ae5a6ff5952253cd7cc0260df838ab4c21009.
0e8ae5a6ff59 ("PCI/portdrv: Do not setup up IRQs if there are no users")
reduced usage of IRQs when we don't think we need them. But Joey, Sergiu,
and David reported choppy GUI rendering, systems that became unresponsive
every few seconds, incorrect values reported by cpufreq, and high IRQ 16
CPU usage.
Joey bisected the issues to 0e8ae5a6ff59, so revert it until we figure out
a better solution.
Link: https://lore.kernel.org/r/20220210222717.GA658201@bhelgaas
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215533
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215546
Reported-by: Joey Corleone <joey.corleone@mail.ru>
Reported-by: Sergiu Deitsch <sergiu.deitsch@gmail.com>
Reported-by: David Spencer <dspencer577@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org # v5.16+
Cc: Jan Kiszka <jan.kiszka@siemens.com>
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|
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- A fix to avoid undefined behavior when stack backtracing, which
manifests in GCC as incorrect stack addresses
- A few fixes for the XIP kernels
- A fix to tracking NUMA state on CPU hotplug
- Support for the recently relesaed binutils-2.38, which changed the
default ISA version to one without CSRs or fence.i in 'I' extension
* tag 'riscv-for-linus-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: fix build with binutils 2.38
riscv: cpu-hotplug: clear cpu from numa map when teardown
riscv: extable: fix err reg writing in dedicated uaccess handler
riscv/mm: Add XIP_FIXUP for riscv_pfn_base
riscv/mm: Add XIP_FIXUP for phys_ram_base
riscv: Fix XIP_FIXUP_FLASH_OFFSET
riscv: eliminate unreliable __builtin_frame_address(1)
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Enable Cortex-A510 erratum 2051678 by default as we do with other
errata.
- arm64 IORT: Check the node revision for PMCG resources to cope with
old firmware based on a broken revision of the spec that had no way
to describe the second register page (when an implementation is using
the recommended RELOC_CTRS feature).
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
ACPI/IORT: Check node revision for PMCG resources
arm64: Enable Cortex-A510 erratum 2051678 by default
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|
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These revert two commits that turned out to be problematic and fix two
issues related to wakeup from suspend-to-idle on x86.
Specifics:
- Revert a recent change that attempted to avoid issues with
conflicting address ranges during PCI initialization, because it
turned out to introduce a regression (Hans de Goede).
- Revert a change that limited EC GPE wakeups from suspend-to-idle to
systems based on Intel hardware, because it turned out that systems
based on hardware from other vendors depended on that functionality
too (Mario Limonciello).
- Fix two issues related to the handling of wakeup interrupts and
wakeup events signaled through the EC GPE during suspend-to-idle on
x86 (Rafael Wysocki)"
* tag 'acpi-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
x86/PCI: revert "Ignore E820 reservations for bridge windows on newer systems"
PM: s2idle: ACPI: Fix wakeup interrupts handling
ACPI: PM: s2idle: Cancel wakeup before dispatching EC GPE
ACPI: PM: Revert "Only mark EC GPE for wakeup on Intel systems"
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git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 fixes from Andreas Gruenbacher:
- Revert debug commit that causes unexpected data corruption
- Fix muti-block reservation regression
* tag 'gfs2-v5.16-rc3-fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: Fix gfs2_release for non-writers regression
Revert "gfs2: check context in gfs2_glock_put"
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|
Pull block fixes from Jens Axboe:
- NVMe pull request
- nvme-tcp: fix bogus request completion when failing to send AER
(Sagi Grimberg)
- add the missing nvme_complete_req tracepoint for batched
completion (Bean Huo)
- Revert of the loop async autoclear issue that has continued to plague
us this release. A few patchsets exists to improve this, but they are
too invasive to be considered at this point (Tetsuo)
* tag 'block-5.17-2022-02-11' of git://git.kernel.dk/linux-block:
loop: revert "make autoclear operation asynchronous"
nvme-tcp: fix bogus request completion when failing to send AER
nvme: add nvme_complete_req tracepoint for batched completion
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|
Pull io_uring fixes from Jens Axboe:
- Fix a false-positive warning from an older gcc (Alviro)
- Allow oom killer invocations from io_uring_setup (Shakeel)
* tag 'io_uring-5.17-2022-02-11' of git://git.kernel.dk/linux-block:
mm: io_uring: allow oom-killer from io_uring_setup
io_uring: Clean up a false-positive warning from GCC 9.3.0
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- use sleeping variants of GPIO accessors where needed
in gpio-aggregator
- never return kernel's internal error codes to user-space
in gpiolib core
- use the correct register for reading output values in
gpio-sifive
- fix line hogging in gpio-sim
* tag 'gpio-fixes-for-v5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: sim: fix hogs with custom chip labels
gpio: sifive: use the correct register to read output values
gpiolib: Never return internal error codes to user space
gpio: aggregator: Fix calling into sleeping GPIO controllers
|
