From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Subject: BUG: using smp_processor_id() in preemptible
Date: Wed, 20 Aug 2008 11:04:38 +0530
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Cc: ext4 development <linux-ext4@vger.kernel.org>
To: Eric Sandeen <sandeen@redhat.com>
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BUG: using smp_processor_id() in preemptible [00000000] code:
fsstress/20995
caller is ext4_mb_initialize_context+0x20c/0x22c
Pid: 20995, comm: fsstress Not tainted 2.6.27-rc3-autokern1 #1
[<c0294a2f>] debug_smp_processor_id+0x9f/0xb8
[<c01e523d>] ext4_mb_initialize_context+0x20c/0x22c
[<c01ea017>] ext4_mb_new_blocks+0x17c/0x715
[<c0136b43>] ? trace_hardirqs_on+0xb/0xd
[<c01e23f2>] ext4_ext_get_blocks+0xbaf/0xde1
[<c0137d20>] ? __lock_acquire+0x61e/0x674
[<c0137d20>] ? __lock_acquire+0x61e/0x674
[<c01d464a>] ext4_get_blocks_wrap+0xce/0x1eb
[<c01dfaba>] ext4_fallocate+0x135/0x27d
[<c016472d>] ? fget+0x1d/0xd3
[<c01647aa>] ? fget+0x9a/0xd3
[<c01623a4>] sys_fallocate+0xce/0xf3
[<c0102bb9>] sysenter_do_call+0x12/0x35
=======================