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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-12 12:01:14 +0900 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-12 12:01:14 +0900 |
| commit | 9b66bfb28049594fe2bb2b91607ba302f511ce8b (patch) | |
| tree | e96e79b1864699800c3f2c2e06b482a995744daf /kernel/debug/kdb | |
| parent | c2136301e43cbb3b71d0163a9949f30dafcb4590 (diff) | |
| parent | b5dfcb09debc38582c3cb72a3c1a88b919b07f2d (diff) | |
Merge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 UV debug changes from Ingo Molnar:
"Various SGI UV debuggability improvements, amongst them KDB support,
with related core KDB enabling patches changing kernel/debug/kdb/"
* 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Revert "x86/UV: Add uvtrace support"
x86/UV: Add call to KGDB/KDB from NMI handler
kdb: Add support for external NMI handler to call KGDB/KDB
x86/UV: Check for alloc_cpumask_var() failures properly in uv_nmi_setup()
x86/UV: Add uvtrace support
x86/UV: Add kdump to UV NMI handler
x86/UV: Add summary of cpu activity to UV NMI handler
x86/UV: Update UV support for external NMI signals
x86/UV: Move NMI support
Diffstat (limited to 'kernel/debug/kdb')
| -rw-r--r-- | kernel/debug/kdb/kdb_debugger.c | 5 | ||||
| -rw-r--r-- | kernel/debug/kdb/kdb_main.c | 3 |
2 files changed, 7 insertions, 1 deletions
diff --git a/kernel/debug/kdb/kdb_debugger.c b/kernel/debug/kdb/kdb_debugger.c index 328d18ef31e..8859ca34dcf 100644 --- a/kernel/debug/kdb/kdb_debugger.c +++ b/kernel/debug/kdb/kdb_debugger.c @@ -69,7 +69,10 @@ int kdb_stub(struct kgdb_state *ks) if (atomic_read(&kgdb_setting_breakpoint)) reason = KDB_REASON_KEYBOARD; - if (in_nmi()) + if (ks->err_code == KDB_REASON_SYSTEM_NMI && ks->signo == SIGTRAP) + reason = KDB_REASON_SYSTEM_NMI; + + else if (in_nmi()) reason = KDB_REASON_NMI; for (i = 0, bp = kdb_breakpoints; i < KDB_MAXBPT; i++, bp++) { diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c index 00eb8f7fbf4..0b097c8a1e5 100644 --- a/kernel/debug/kdb/kdb_main.c +++ b/kernel/debug/kdb/kdb_main.c @@ -1200,6 +1200,9 @@ static int kdb_local(kdb_reason_t reason, int error, struct pt_regs *regs, instruction_pointer(regs)); kdb_dumpregs(regs); break; + case KDB_REASON_SYSTEM_NMI: + kdb_printf("due to System NonMaskable Interrupt\n"); + break; case KDB_REASON_NMI: kdb_printf("due to NonMaskable Interrupt @ " kdb_machreg_fmt "\n", |