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| author | Hidetoshi Seto <[seto.hidetoshi@jp.fujitsu.com]> | 2009-08-06 14:51:57 -0700 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2009-09-14 16:19:10 -0700 |
| commit | 5959906ee9dee602a46e49c868a7e543e050d605 (patch) | |
| tree | 8fe75fa3461aa83d4185d126755a90aa4be4d68a /arch | |
| parent | 1726b0883dd08636705ea55d577eb0ec314ba427 (diff) | |
| download | kernel_samsung_tuna-5959906ee9dee602a46e49c868a7e543e050d605.zip kernel_samsung_tuna-5959906ee9dee602a46e49c868a7e543e050d605.tar.gz kernel_samsung_tuna-5959906ee9dee602a46e49c868a7e543e050d605.tar.bz2 | |
[IA64] kdump: Try INIT regardless of
kdump_on_init
CPUs should be frozen if possible, otherwise it might hinder kdump.
So if there are CPUs not respond to IPI, try INIT to stop them.
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Haren Myneni <hbabu@us.ibm.com>
Cc: kexec@lists.infradead.org
Acked-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/ia64/kernel/crash.c | 43 |
1 files changed, 21 insertions, 22 deletions
diff --git a/arch/ia64/kernel/crash.c b/arch/ia64/kernel/crash.c index 9c851b7..0995fdc 100644 --- a/arch/ia64/kernel/crash.c +++ b/arch/ia64/kernel/crash.c @@ -138,8 +138,10 @@ machine_crash_shutdown(struct pt_regs *pt) */ kdump_smp_send_stop(); /* not all cpu response to IPI, send INIT to freeze them */ - if (kdump_wait_cpu_freeze() && kdump_on_init) { + if (kdump_wait_cpu_freeze()) { kdump_smp_send_init(); + /* wait again, don't go ahead if possible */ + kdump_wait_cpu_freeze(); } #endif } @@ -178,6 +180,19 @@ kdump_init_notifier(struct notifier_block *self, unsigned long val, void *data) struct ia64_mca_notify_die *nd; struct die_args *args = data; + if (atomic_read(&kdump_in_progress)) { + switch (val) { + case DIE_INIT_MONARCH_LEAVE: + if (!kdump_freeze_monarch) + break; + /* fall through */ + case DIE_INIT_SLAVE_LEAVE: + case DIE_MCA_RENDZVOUS_LEAVE: + unw_init_running(kdump_cpu_freeze, NULL); + break; + } + } + if (!kdump_on_init && !kdump_on_fatal_mca) return NOTIFY_DONE; @@ -190,41 +205,25 @@ kdump_init_notifier(struct notifier_block *self, unsigned long val, void *data) } if (val != DIE_INIT_MONARCH_LEAVE && - val != DIE_INIT_SLAVE_LEAVE && val != DIE_INIT_MONARCH_PROCESS && - val != DIE_MCA_RENDZVOUS_LEAVE && val != DIE_MCA_MONARCH_LEAVE) return NOTIFY_DONE; nd = (struct ia64_mca_notify_die *)args->err; - /* Reason code 1 means machine check rendezvous*/ - if ((val == DIE_INIT_MONARCH_LEAVE || val == DIE_INIT_SLAVE_LEAVE - || val == DIE_INIT_MONARCH_PROCESS) && nd->sos->rv_rc == 1) - return NOTIFY_DONE; switch (val) { case DIE_INIT_MONARCH_PROCESS: - if (kdump_on_init) { + /* Reason code 1 means machine check rendezvous*/ + if (kdump_on_init && (nd->sos->rv_rc != 1)) { if (atomic_inc_return(&kdump_in_progress) != 1) kdump_freeze_monarch = 1; *(nd->monarch_cpu) = -1; } break; case DIE_INIT_MONARCH_LEAVE: - if (kdump_on_init) { - if (kdump_freeze_monarch) - unw_init_running(kdump_cpu_freeze, NULL); - else - machine_kdump_on_init(); - } - break; - case DIE_INIT_SLAVE_LEAVE: - if (atomic_read(&kdump_in_progress)) - unw_init_running(kdump_cpu_freeze, NULL); - break; - case DIE_MCA_RENDZVOUS_LEAVE: - if (atomic_read(&kdump_in_progress)) - unw_init_running(kdump_cpu_freeze, NULL); + /* Reason code 1 means machine check rendezvous*/ + if (kdump_on_init && (nd->sos->rv_rc != 1)) + machine_kdump_on_init(); break; case DIE_MCA_MONARCH_LEAVE: /* *(nd->data) indicate if MCA is recoverable */ |