Strange trace in dmesg on kernel 3.8.5

DISCUSSION Eric Valette 3 participants 5 messages Apr 4, 2013 – Apr 5, 2013 libata

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Borislav Petkov

2013-04-04 19:44 UTC #1 lore raw

+ linux-ide.

Quoted 72 lines · Eric Valette

Hi,

When booting a brand new machine freshly installed I notice in the dmesg output always the same worrying trace:

PS copy me I'm not subscribed.

ata2.00: ATA-9: Samsung SSD 840 Series, DXT07B0Q, max UDMA/133 ata2.00: 234441648 sectors, multi 16: LBA48 NCQ (depth 31/32), AA

  ------------[ cut here ]------------
WARNING: at /usr/src/linux-3.8.5/lib/dma-debug.c:947
check_for_stack+0x92/0xc7()
Hardware name: System Product Name
ahci 0000:00:1f.2: DMA-API: device driver maps memory fromstack
[addr=ffff88040df2da50]
Modules linked in:
Pid: 1419, comm: scsi_eh_1 Not tainted 3.8.5 #3
Call Trace:
 [<ffffffff8121915c>] ? check_for_stack+0x92/0xc7
 [<ffffffff8102bd25>] warn_slowpath_common+0x7c/0x94
 [<ffffffff8102bd84>] warn_slowpath_fmt+0x47/0x49
 [<ffffffff8121915c>] check_for_stack+0x92/0xc7
 [<ffffffff8121927e>] debug_dma_map_sg+0xed/0x150
 [<ffffffff8133fd72>] ata_qc_issue+0x22c/0x2e1
 [<ffffffff81340061>] ata_exec_internal_sg+0x23a/0x42c
 [<ffffffff813402d1>] ata_exec_internal+0x7e/0x8b
 [<ffffffff813482cb>] ata_read_log_page+0x78/0x7f
 [<ffffffff813414ea>] ata_dev_configure+0xcc1/0x112b
 [<ffffffff81035b0d>] ? del_timer_sync+0x2b/0x49
 [<ffffffff815341c1>] ? schedule_timeout+0x145/0x165
 [<ffffffff8104c913>] ? wake_up_process+0x32/0x32
 [<ffffffff815362ae>] ? _raw_spin_lock_irqsave+0x18/0x39
 [<ffffffff8153642d>] ? _raw_spin_unlock_irqrestore+0x13/0x2e
 [<ffffffff81340228>] ? ata_exec_internal_sg+0x401/0x42c
 [<ffffffff813402d1>] ? ata_exec_internal+0x7e/0x8b
 [<ffffffff8134260a>] ? ata_std_postreset+0x9e/0xc4
 [<ffffffff81340300>] ? ata_do_dev_read_id+0x22/0x24
 [<ffffffff81340499>] ? ata_dev_read_id+0xd4/0x3f3
 [<ffffffff8134ea61>] ? ahci_error_handler+0x3b/0x3b
 [<ffffffff81347a63>] ? ata_ering_map+0x3a/0x5a
 [<ffffffff8134a4f3>] ata_eh_recover+0x6b0/0xee2
 [<ffffffff8134ea61>] ? ahci_error_handler+0x3b/0x3b
 [<ffffffff8134ee52>] ? ahci_dev_classify+0x4d/0x4d
 [<ffffffff8134f9e1>] ? ahci_do_softreset+0x177/0x177
 [<ffffffff813426b0>] ? ata_phys_link_offline+0x27/0x27
 [<ffffffff8134b417>] ata_do_eh+0x46/0x93
 [<ffffffff813426b0>] ? ata_phys_link_offline+0x27/0x27
 [<ffffffff8134f9e1>] ? ahci_do_softreset+0x177/0x177
 [<ffffffff8134ee52>] ? ahci_dev_classify+0x4d/0x4d
 [<ffffffff8134ea61>] ? ahci_error_handler+0x3b/0x3b
 [<ffffffff8134ee52>] ? ahci_dev_classify+0x4d/0x4d
 [<ffffffff8134b4b9>] ata_std_error_handler+0x55/0x5c
 [<ffffffff8134ea49>] ahci_error_handler+0x23/0x3b
 [<ffffffff8134affe>] ata_scsi_port_error_handler+0x236/0x554
 [<ffffffff8134b3a8>] ata_scsi_error+0x8c/0xb5
 [<ffffffff81329f8d>] scsi_error_handler+0xa3/0x40a
 [<ffffffff8104c920>] ? default_wake_function+0xd/0xf
 [<ffffffff81329eea>] ? scsi_eh_get_sense+0xa2/0xa2
 [<ffffffff81042662>] kthread+0xb5/0xbd
 [<ffffffff810425ad>] ? kthread_stop+0x53/0x53
 [<ffffffff815370ac>] ret_from_fork+0x7c/0xb0
 [<ffffffff810425ad>] ? kthread_stop+0x53/0x53
  ---[ end trace b53ccdbc387522c5 ]---

--eric
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Signature · 5 lines

Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
--

David Woodhouse

2013-04-04 20:45 UTC #2 lore raw

Quoted 2 lines · Borislav Petkov

Quoted 2 lines
ahci 0000:00:1f.2: DMA-API: device driver maps memory fromstack [addr=ffff88040df2da50]

I fixed this already.

https://git.kernel.org/cgit/linux/kernel/git/jgarzik/libata-dev.git/commit/?h=upstream-fixes&id=8e725c7f8a60feaa88edacd4dee2c754d5ae7706

Signature · 2 lines

David Woodhouse                            Open Source Technology Centre
[email protected]                              Intel Corporation

Eric Valette

author

2013-04-04 19:03 UTC #3 lore raw

Quoted 7 lines · David Woodhouse

Quoted 2 lines · Borislav Petkov
Quoted 2 lines
ahci 0000:00:1f.2: DMA-API: device driver maps memory fromstack [addr=ffff88040df2da50]
I fixed this already.
https://git.kernel.org/cgit/linux/kernel/git/jgarzik/libata-dev.git/commit/?h=upstream-fixes&id=8e725c7f8a60feaa88edacd4dee2c754d5ae7706

Thanks for the support. I will apply the patch manually and wait for 3.8.6

-- eric

Eric Valette

author

2013-04-05 07:17 UTC #4 lore raw

Quoted 5 lines · Eric Valette

Quoted 4 lines
I fixed this already.
https://git.kernel.org/cgit/linux/kernel/git/jgarzik/libata-dev.git/commit/?h=upstream-fixes&id=8e725c7f8a60feaa88edacd4dee2c754d5ae7706
Thanks for the support. I will apply the patch manually and wait for 3.8.6

Just to confirrm : fixed on my side with the patch.

Thanks again.

-- eric