diff options
| author | Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> | 2007-09-01 16:37:48 +0900 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2007-10-12 15:24:40 -0700 |
| commit | 2010d7fe787b39afd31daba5d5284dd432de4e8f (patch) | |
| tree | c595dfc3127abd6282dbd941fdd022577e7740e8 /arch/ia64 | |
| parent | ac542a513bd7905fa1a700881e0a40a94d3ed46a (diff) | |
| download | linux-2010d7fe787b39afd31daba5d5284dd432de4e8f.tar.gz | |
[IA64] Fix kernel hangup in kdump on INIT
Fix the problem that kdump on INIT hung up if kdump kernel image is not configured. The kdump_init_notifier() on monarch CPU stops its operation at DIE_INIT_MONARCH_LEAVE time if the kdump kernel image is not configured. On the other hand, kdump_init_notifier() on non-monarch CPUs get into spin because they don't know the fact the monarch stops its operation. This is the cause of this problem. To fix this problem, we need to check the kdump kernel image at the top of the kdump_init_notifier() function. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64')
| -rw-r--r-- | arch/ia64/kernel/crash.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/arch/ia64/kernel/crash.c b/arch/ia64/kernel/crash.c index b2367dd66766..f1cf2df97a2d 100644 --- a/arch/ia64/kernel/crash.c +++ b/arch/ia64/kernel/crash.c @@ -118,11 +118,6 @@ machine_crash_shutdown(struct pt_regs *pt) static void machine_kdump_on_init(void) { - if (!ia64_kimage) { - ia64_mca_printk(KERN_NOTICE "machine_kdump_on_init(): " - "kdump not configured\n"); - return; - } local_irq_disable(); kexec_disable_iosapic(); machine_kexec(ia64_kimage); @@ -156,6 +151,14 @@ kdump_init_notifier(struct notifier_block *self, unsigned long val, void *data) if (!kdump_on_init) return NOTIFY_DONE; + if (!ia64_kimage) { + if (val == DIE_INIT_MONARCH_LEAVE) + ia64_mca_printk(KERN_NOTICE + "%s: kdump not configured\n", + __FUNCTION__); + return NOTIFY_DONE; + } + if (val != DIE_INIT_MONARCH_LEAVE && val != DIE_INIT_SLAVE_LEAVE && val != DIE_INIT_MONARCH_PROCESS && |