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| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2009-03-26 10:23:56 -0400 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2009-03-26 10:24:08 -0400 |
| commit | 3324e60aafa9aeb1009878d45079b67367a5e2b6 (patch) | |
| tree | 7c7483b4d4c0996b30de899346b0070792e4f976 /arch/s390/mm | |
| parent | 431429ff788598a19c1a193b9fca3961b7f55916 (diff) | |
[S390] lockdep: trace hardirq off in smp_send_stop
With lockdep we got the following trace after a panic:
Badness at /home/autobuild/BUILD/linux-2.6.28-20090204/kernel/lockdep.c:2878
[...]
Call Trace:
[<0000000000176334>] lock_acquire+0x54/0xbc
[<000000000050b4fe>] __atomic_notifier_call_chain+0x6e/0xdc
[<000000000050b59c>] atomic_notifier_call_chain+0x30/0x44
[<0000000000504274>] panic+0xd0/0x1e8
[...]
INFO: lockdep is turned off.
Last Breaking-Event-Address:
[<0000000000170e62>] check_flags+0xae/0x15c
possible reason: unannotated irqs-off.
lockdep is right. We missed a trace_hardirq_off in our smp_send_stop
function and smp_send_stop is called before the panic call chain.
Reported-by: Mijo <Safradin mijo@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/mm')
0 files changed, 0 insertions, 0 deletions