diff options
| -rw-r--r-- | arch/x86/kernel/cpu/mcheck/mce.c | 32 |
1 files changed, 18 insertions, 14 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 86806e52fc40..6773610061d8 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -158,6 +158,7 @@ void mce_log(struct mce *mce) mcelog.entry[entry].finished = 1; wmb(); + mce->finished = 1; set_bit(0, ¬ify_user); } @@ -190,23 +191,29 @@ static void print_mce(struct mce *m) "and contact your hardware vendor\n"); } -static void mce_panic(char *msg, struct mce *backup, u64 start) +static void mce_panic(char *msg, struct mce *final) { int i; bust_spinlocks(1); console_verbose(); + /* First print corrected ones that are still unlogged */ for (i = 0; i < MCE_LOG_LEN; i++) { - u64 tsc = mcelog.entry[i].tsc; - - if ((s64)(tsc - start) < 0) + struct mce *m = &mcelog.entry[i]; + if ((m->status & MCI_STATUS_VAL) && + !(m->status & MCI_STATUS_UC)) + print_mce(m); + } + /* Now print uncorrected but with the final one last */ + for (i = 0; i < MCE_LOG_LEN; i++) { + struct mce *m = &mcelog.entry[i]; + if (!(m->status & MCI_STATUS_VAL)) continue; - print_mce(&mcelog.entry[i]); - if (backup && mcelog.entry[i].tsc == backup->tsc) - backup = NULL; + if (!final || memcmp(m, final, sizeof(struct mce))) + print_mce(m); } - if (backup) - print_mce(backup); + if (final) + print_mce(final); panic(msg); } @@ -362,7 +369,6 @@ void do_machine_check(struct pt_regs *regs, long error_code) { struct mce m, panicm; int panicm_found = 0; - u64 mcestart = 0; int i; /* * If no_way_out gets set, there is no safe way to recover from this @@ -394,7 +400,6 @@ void do_machine_check(struct pt_regs *regs, long error_code) if (!(m.mcgstatus & MCG_STATUS_RIPV)) no_way_out = 1; - rdtscll(mcestart); barrier(); for (i = 0; i < banks; i++) { @@ -478,7 +483,7 @@ void do_machine_check(struct pt_regs *regs, long error_code) * has not set tolerant to an insane level, give up and die. */ if (no_way_out && tolerant < 3) - mce_panic("Machine check", &panicm, mcestart); + mce_panic("Machine check", &panicm); /* * If the error seems to be unrecoverable, something should be @@ -506,8 +511,7 @@ void do_machine_check(struct pt_regs *regs, long error_code) if (user_space) { force_sig(SIGBUS, current); } else if (panic_on_oops || tolerant < 2) { - mce_panic("Uncorrected machine check", - &panicm, mcestart); + mce_panic("Uncorrected machine check", &panicm); } } |