From 33bbc3065414722065a20cbdbeaf352173e72f39 Mon Sep 17 00:00:00 2001 From: Thomas Meyer Date: Sat, 28 Mar 2015 09:59:46 +0100 Subject: um: Move uml_postsetup in the init_thread stack atomic_notifier_chain_register() and uml_postsetup() do call kernel code that rely on the "current" kernel macro and a valid task_struct resp. thread_info struct. Give those functions a valid stack by moving uml_postsetup() in the init_thread stack. This moves enables a panic() call in this early code to generate a valid stacktrace, instead of crashing. E.g. when an UML kernel is started with an initrd but too few physical memory the panic() call get's actually processed. Signed-off-by: Thomas Meyer Signed-off-by: Richard Weinberger --- arch/um/include/shared/as-layout.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/um/include') diff --git a/arch/um/include/shared/as-layout.h b/arch/um/include/shared/as-layout.h index 41c8c774ec10..ca1843e1df15 100644 --- a/arch/um/include/shared/as-layout.h +++ b/arch/um/include/shared/as-layout.h @@ -56,6 +56,7 @@ extern unsigned long brk_start; extern unsigned long host_task_size; extern int linux_main(int argc, char **argv); +extern void uml_finishsetup(void); struct siginfo; extern void (*sig_info[])(int, struct siginfo *si, struct uml_pt_regs *); -- cgit v1.2.3