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Date: Tue, 22 Jul 2014 12:26:45 -0700
From: Jesse Brandeburg <jesse.brandeburg@...il.com>
To: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: PANIC: ata_qc_new_init crashes at boot
This is a repeatable panic, happens every boot (and prevents starting my system)
.config attached, built from commit 15ba2236f3556fc01b9ca91394465152b5ea74b6
[ 8.732993] sd 6:0:1:0: [sdb] Attached SCSI disk
[ 8.733857] sda: sda1 sda2 sda3
[ 8.734318] sd 6:0:0:0: [sda] Attached SCSI disk
[ 8.737943] BUG: unable to handle kernel NULL pointer dereference
at 0000000000000058
[ 8.737947] IP: [<ffffffff814e0618>] ata_qc_new_init+0x188/0x1b0
[ 8.737948] PGD 0
[ 8.737949] Oops: 0002 [#1] SMP
[ 8.737953] Modules linked in: isci libsas scsi_transport_sas
mgag200 drm_kms_helper ttm
[ 8.737955] CPU: 1 PID: 518 Comm: udevd Not tainted 3.16.0-rc6+ #62
[ 8.737956] Hardware name: Intel Corporation S2600CO/S2600CO, BIOS
SE5C600.86B.02.02.0002.122320131210 12/23/2013
[ 8.737956] task: ffff880c1a00b280 ti: ffff88061a000000 task.ti:
ffff88061a000000
[ 8.737958] RIP: 0010:[<ffffffff814e0618>] [<ffffffff814e0618>]
ata_qc_new_init+0x188/0x1b0
[ 8.737959] RSP: 0018:ffff88061a003ae8 EFLAGS: 00010012
[ 8.737959] RAX: 0000000000000001 RBX: ffff88000241ca80 RCX: 00000000000000fa
[ 8.737960] RDX: 0000000000000020 RSI: 0000000000000020 RDI: ffff8806194aa298
[ 8.737960] RBP: ffff88061a003ae8 R08: ffff8806194a8000 R09: 0000000000000000
[ 8.737961] R10: 0000000000000000 R11: ffff88000241ca80 R12: ffff88061ad58200
[ 8.737961] R13: ffff8806194aa298 R14: ffffffff814e67a0 R15: ffff8806194a8000
[ 8.737962] FS: 00007f3ad7fe3840(0000) GS:ffff880627620000(0000)
knlGS:0000000000000000
[ 8.737963] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8.737963] CR2: 0000000000000058 CR3: 000000061a118000 CR4: 00000000001407e0
[ 8.737964] Stack:
[ 8.737965] ffff88061a003b20 ffffffff814e96e1 ffff88000241ca80
ffff88061ad58200
[ 8.737966] ffff8800b6bf6000 ffff880c1c988000 ffff880619903850
ffff88061a003b68
[ 8.737967] ffffffffa0056ce1 ffff88061a003b48 0000000013d6e6f8
ffff88000241ca80
[ 8.737968] Call Trace:
[ 8.737971] [<ffffffff814e96e1>] ata_sas_queuecmd+0xa1/0x430
[ 8.737976] [<ffffffffa0056ce1>] sas_queuecommand+0x191/0x220 [libsas]
[ 8.737978] [<ffffffff8149afee>] scsi_dispatch_cmd+0x10e/0x300
[ 8.737981] [<ffffffff814a3bc5>] scsi_request_fn+0x2f5/0x550
[ 8.737983] [<ffffffff81317613>] __blk_run_queue+0x33/0x40
[ 8.737985] [<ffffffff8131781a>] queue_unplugged+0x2a/0x90
[ 8.737986] [<ffffffff8131ceb4>] blk_flush_plug_list+0x1b4/0x210
[ 8.737988] [<ffffffff8131d274>] blk_finish_plug+0x14/0x50
[ 8.737990] [<ffffffff8117eaa8>] __do_page_cache_readahead+0x198/0x1f0
[ 8.737991] [<ffffffff8117ee21>] force_page_cache_readahead+0x31/0x50
[ 8.737992] [<ffffffff8117ee7e>] page_cache_sync_readahead+0x3e/0x50
[ 8.737995] [<ffffffff81172ac6>] generic_file_read_iter+0x496/0x5a0
[ 8.737998] [<ffffffff81219897>] blkdev_read_iter+0x37/0x40
[ 8.738002] [<ffffffff811e307e>] new_sync_read+0x7e/0xb0
[ 8.738004] [<ffffffff811e3734>] vfs_read+0x94/0x170
[ 8.738006] [<ffffffff811e43c6>] SyS_read+0x46/0xb0
[ 8.738007] [<ffffffff811e33d1>] ? SyS_lseek+0x91/0xb0
[ 8.738011] [<ffffffff8171ee29>] system_call_fastpath+0x16/0x1b
[ 8.738021] Code: 00 00 00 88 50 29 83 7f 08 01 19 d2 83 e2 f0 83
ea 50 88 50 34 c6 81 1d 02 00 00 40 c6 81 17 02 00 00 00 5d c3 66 0f
1f 44 00 00 <89> 14 25 58 00 00 00
[ 8.738023] RIP [<ffffffff814e0618>] ata_qc_new_init+0x188/0x1b0
[ 8.738023] RSP <ffff88061a003ae8>
[ 8.738023] CR2: 0000000000000058
[ 8.738025] ---[ end trace 831868baa88bb368 ]---
View attachment "config-panic.txt" of type "text/plain" (94715 bytes)
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