From: "Andi Kleen" Always print segfaults for init. This gives better debugging output when something is really wrong with the kernel. Signed-off-by: Andi Kleen Signed-off-by: Andrew Morton --- 25-akpm/arch/x86_64/mm/fault.c | 7 +++++-- 1 files changed, 5 insertions(+), 2 deletions(-) diff -puN arch/x86_64/mm/fault.c~x86_64-always-print-segfaults-for-init arch/x86_64/mm/fault.c --- 25/arch/x86_64/mm/fault.c~x86_64-always-print-segfaults-for-init 2004-11-28 01:54:44.114890624 -0800 +++ 25-akpm/arch/x86_64/mm/fault.c 2004-11-28 01:54:44.117890168 -0800 @@ -212,6 +212,8 @@ static int is_errata93(struct pt_regs *r int unhandled_signal(struct task_struct *tsk, int sig) { + if (tsk->pid == 1) + return 1; /* Warn for strace, but not for gdb */ if (!test_ti_thread_flag(tsk->thread_info, TIF_SYSCALL_TRACE) && (tsk->ptrace & PT_PTRACED)) @@ -483,8 +485,9 @@ bad_area_nosemaphore: return; if (exception_trace && unhandled_signal(tsk, SIGSEGV)) { - printk(KERN_INFO - "%s[%d]: segfault at %016lx rip %016lx rsp %016lx error %lx\n", + printk( + "%s%s[%d]: segfault at %016lx rip %016lx rsp %016lx error %lx\n", + tsk->pid > 1 ? KERN_INFO : KERN_EMERG, tsk->comm, tsk->pid, address, regs->rip, regs->rsp, error_code); } _