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author | Alexander van Heukelum <heukelum@fastmail.fm> | 2008-10-04 23:12:40 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-10-13 10:33:39 +0200 |
commit | dd6e4eba1c03c9562fced21736453396c045f869 (patch) | |
tree | e9251e3616b96ff783b1ca88e274fadebf420d6c /arch/x86/kernel/dumpstack_32.c | |
parent | traps: x86: finalize unification of traps.c (diff) | |
download | linux-dd6e4eba1c03c9562fced21736453396c045f869.tar.xz linux-dd6e4eba1c03c9562fced21736453396c045f869.zip |
dumpstack: x86: move die_nmi to dumpstack_32.c
For some reason die_nmi is still defined in traps.c for
i386, but is found in dumpstack_64.c for x86_64. Move it
to dumpstack_32.c
Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/dumpstack_32.c')
-rw-r--r-- | arch/x86/kernel/dumpstack_32.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c index c398b27df6cd..dc9ca7ee1c47 100644 --- a/arch/x86/kernel/dumpstack_32.c +++ b/arch/x86/kernel/dumpstack_32.c @@ -403,6 +403,42 @@ void die(const char *str, struct pt_regs *regs, long err) oops_end(flags, regs, SIGSEGV); } +static DEFINE_SPINLOCK(nmi_print_lock); + +void notrace __kprobes +die_nmi(char *str, struct pt_regs *regs, int do_panic) +{ + if (notify_die(DIE_NMIWATCHDOG, str, regs, 0, 2, SIGINT) == NOTIFY_STOP) + return; + + spin_lock(&nmi_print_lock); + /* + * We are in trouble anyway, lets at least try + * to get a message out: + */ + bust_spinlocks(1); + printk(KERN_EMERG "%s", str); + printk(" on CPU%d, ip %08lx, registers:\n", + smp_processor_id(), regs->ip); + show_registers(regs); + if (do_panic) + panic("Non maskable interrupt"); + console_silent(); + spin_unlock(&nmi_print_lock); + bust_spinlocks(0); + + /* + * If we are in kernel we are probably nested up pretty bad + * and might aswell get out now while we still can: + */ + if (!user_mode_vm(regs)) { + current->thread.trap_no = 2; + crash_kexec(regs); + } + + do_exit(SIGSEGV); +} + static int __init kstack_setup(char *s) { kstack_depth_to_print = simple_strtoul(s, NULL, 0); |