diff options
Diffstat (limited to 'arch/ia64/kernel')
| -rw-r--r-- | arch/ia64/kernel/crash.c | 31 | ||||
| -rw-r--r-- | arch/ia64/kernel/mca.c | 6 |
2 files changed, 24 insertions, 13 deletions
diff --git a/arch/ia64/kernel/crash.c b/arch/ia64/kernel/crash.c index fbe742ad2fd..2b01e5a1f3c 100644 --- a/arch/ia64/kernel/crash.c +++ b/arch/ia64/kernel/crash.c @@ -24,6 +24,7 @@ int kdump_status[NR_CPUS]; static atomic_t kdump_cpu_frozen; atomic_t kdump_in_progress; static int kdump_on_init = 1; +static int kdump_on_fatal_mca = 1; static inline Elf64_Word *append_elf_note(Elf64_Word *buf, char *name, unsigned type, void *data, @@ -148,7 +149,7 @@ kdump_init_notifier(struct notifier_block *self, unsigned long val, void *data) struct ia64_mca_notify_die *nd; struct die_args *args = data; - if (!kdump_on_init) + if (!kdump_on_init && !kdump_on_fatal_mca) return NOTIFY_DONE; if (!ia64_kimage) { @@ -174,11 +175,14 @@ kdump_init_notifier(struct notifier_block *self, unsigned long val, void *data) switch (val) { case DIE_INIT_MONARCH_PROCESS: - atomic_set(&kdump_in_progress, 1); - *(nd->monarch_cpu) = -1; + if (kdump_on_init) { + atomic_set(&kdump_in_progress, 1); + *(nd->monarch_cpu) = -1; + } break; case DIE_INIT_MONARCH_LEAVE: - machine_kdump_on_init(); + if (kdump_on_init) + machine_kdump_on_init(); break; case DIE_INIT_SLAVE_LEAVE: if (atomic_read(&kdump_in_progress)) @@ -189,16 +193,19 @@ kdump_init_notifier(struct notifier_block *self, unsigned long val, void *data) unw_init_running(kdump_cpu_freeze, NULL); break; case DIE_MCA_MONARCH_LEAVE: - /* die_register->signr indicate if MCA is recoverable */ - if (!args->signr) + /* die_register->signr indicate if MCA is recoverable */ + if (kdump_on_fatal_mca && !args->signr) { + atomic_set(&kdump_in_progress, 1); + *(nd->monarch_cpu) = -1; machine_kdump_on_init(); + } break; } return NOTIFY_DONE; } #ifdef CONFIG_SYSCTL -static ctl_table kdump_on_init_table[] = { +static ctl_table kdump_ctl_table[] = { { .ctl_name = CTL_UNNUMBERED, .procname = "kdump_on_init", @@ -207,6 +214,14 @@ static ctl_table kdump_on_init_table[] = { .mode = 0644, .proc_handler = &proc_dointvec, }, + { + .ctl_name = CTL_UNNUMBERED, + .procname = "kdump_on_fatal_mca", + .data = &kdump_on_fatal_mca, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, { .ctl_name = 0 } }; @@ -215,7 +230,7 @@ static ctl_table sys_table[] = { .ctl_name = CTL_KERN, .procname = "kernel", .mode = 0555, - .child = kdump_on_init_table, + .child = kdump_ctl_table, }, { .ctl_name = 0 } }; diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c index 6c18221dba3..338dbb8c2cf 100644 --- a/arch/ia64/kernel/mca.c +++ b/arch/ia64/kernel/mca.c @@ -1266,16 +1266,12 @@ ia64_mca_handler(struct pt_regs *regs, struct switch_stack *sw, } else { /* Dump buffered message to console */ ia64_mlogbuf_finish(1); -#ifdef CONFIG_KEXEC - atomic_set(&kdump_in_progress, 1); - monarch_cpu = -1; -#endif } + if (notify_die(DIE_MCA_MONARCH_LEAVE, "MCA", regs, (long)&nd, 0, recover) == NOTIFY_STOP) ia64_mca_spin(__func__); - if (atomic_dec_return(&mca_count) > 0) { int i; |