サーバーが scsi_softirq_done でクラッシュする
Issue
- サーバーが
scsi_softirq_done
でクラッシュし、以下のスタックトレースが表示されます。
BUG: unable to handle kernel NULL pointer dereference at 0000000000000044 : . #0 [ffff88002f603a60] machine_kexec at ffffffff8103281b #1 [ffff88002f603ac0] crash_kexec at ffffffff810ba662 #2 [ffff88002f603b90] oops_end at ffffffff81501290 #3 [ffff88002f603bc0] no_context at ffffffff81043bab #4 [ffff88002f603c10] __bad_area_nosemaphore at ffffffff81043e35 #5 [ffff88002f603c60] bad_area_nosemaphore at ffffffff81043f03 #6 [ffff88002f603c70] __do_page_fault at ffffffff81044661 #7 [ffff88002f603d90] do_page_fault at ffffffff8150326e #8 [ffff88002f603dc0] page_fault at ffffffff81500625 [exception RIP: scsi_softirq_done+50] RIP: ffffffff8136c672 RSP: ffff88002f603e70 RFLAGS:00010282 RAX:0000000000000018 RBX:0000000000000000 RCX: ffff88002f603ea0 RDX: ffff88002f603ea0 RSI: ffff880235a54300 RDI: ffff8802392a38a0 RBP: ffff88002f603e90 R8: ffff88002f613590 R9:00007fff980907e0 R10:0000000000000000 R11:00000000096981d0 R12: ffffffff81a830a0 R13:0000000000000000 R14:0000000000000100 R15:0000000000000004 ORIG_RAX: ffffffffffffffff CS:0010 SS:0000 #9 [ffff88002f603e98] blk_done_softirq at ffffffff8125d605 #10 [ffff88002f603ec8] __do_softirq at ffffffff81073ec1 #11 [ffff88002f603f38] call_softirq at ffffffff8100c24c #12 [ffff88002f603f50] do_softirq at ffffffff8100de85 #13 [ffff88002f603f70] irq_exit at ffffffff81073ca5 #14 [ffff88002f603f80] do_IRQ at ffffffff81505af5
Environment
- Red Hat Enterprise Linux 6
vmw_pvscsi
ドライバーを使用している VMware
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