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Message-ID: <4DA83BAF.2010801@teksavvy.com>
Date: Fri, 15 Apr 2011 08:35:59 -0400
From: Mark Lord <kernel@teksavvy.com>
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To: Mikael Abrahamsson <swmike@swm.pp.se>
CC: Bruce Stenning <b.stenning@indigovision.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>
Subject: Re: sata_mv port lockup on hotplug (kernel 2.6.38.2)
References: <C1438B59050E1B4C9482FF3266AD6BA32C7493557A@gretna.indigovision.com> <C1438B59050E1B4C9482FF3266AD6BA32C7493559F@gretna.indigovision.com> <4D9CD275.9000002@teksavvy.com> <C1438B59050E1B4C9482FF3266AD6BA32C749358D0@gretna.indigovision.com> <alpine.DEB.2.00.1104150510181.14027@uplift.swm.pp.se> <4DA7BC4B.9090104@teksavvy.com> <alpine.DEB.2.00.1104150941220.14027@uplift.swm.pp.se>
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On 11-04-15 03:43 AM, Mikael Abrahamsson wrote:
> On Thu, 14 Apr 2011, Mark Lord wrote:
>
>> I would like to see the output, next time you can get it.
>

>Apr 14 18:39:54 host kernel: [  137.276051] ata9: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
>Apr 14 18:39:54 host kernel: [  137.284557] ------------[ cut here ]------------
>Apr 14 18:39:54 host kernel: [  137.284626] WARNING: at /build/buildd-linux-2.6_2.6.32-31-amd64-vrfdM4/linux-2.6-2.6.32/debian/build/source_amd64_none/drivers/ata/libata-sff.c:1208 ata_sff_hsm_move+0x47/0x642 [libata]()
>Apr 14 18:39:54 host kernel: [  137.284733] Hardware name: P5E WS Pro
>Apr 14 18:39:54 host kernel: [  137.284797] Modules linked in: ext2 loop snd_pcm snd_timer snd soundcore snd_page_alloc i2c_i801 i2c_core evdev pcspkr asus_atk0110 x38_edac shpchp pci_hotplug edac_core button processor ext3 jbd mbcache sha256_generic aes_x86_64 aes_generic cbc dm_crypt dm_mod usbhid hid sd_mod crc_t10dif sata_mv uhci_hcd sata_sil24 ahci mpt2sas libata sky2 scsi_transport_sas thermal ehci_hcd thermal_sys scsi_mod usbcore nls_base [last unloaded: scsi_wait_scan]
>Apr 14 18:39:54 host kernel: [  137.286426] Pid: 240, comm: ata/1 Not tainted 2.6.32-5-amd64 #1
>Apr 14 18:39:54 host kernel: [  137.286482] Call Trace:
>Apr 14 18:39:54 host kernel: [  137.286536]  [<ffffffffa00b1438>] ? ata_sff_hsm_move+0x47/0x642 [libata]
>Apr 14 18:39:54 host kernel: [  137.286597]  [<ffffffffa00b1438>] ? ata_sff_hsm_move+0x47/0x642 [libata]
>Apr 14 18:39:54 host kernel: [  137.286658]  [<ffffffff8104df00>] ? warn_slowpath_common+0x77/0xa3
>Apr 14 18:39:54 host kernel: [  137.286718]  [<ffffffffa00b1438>] ? ata_sff_hsm_move+0x47/0x642 [libata]
>Apr 14 18:39:54 host kernel: [  137.286780]  [<ffffffffa00b1d87>] ? ata_pio_task+0x9a/0xa6 [libata]
>Apr 14 18:39:54 host kernel: [  137.286838]  [<ffffffff8106186b>] ? worker_thread+0x188/0x21d
>Apr 14 18:39:54 host kernel: [  137.286897]  [<ffffffffa00b1ced>] ? ata_pio_task+0x0/0xa6 [libata]
>Apr 14 18:39:54 host kernel: [  137.286955]  [<ffffffff81064e96>] ? autoremove_wake_function+0x0/0x2e
>Apr 14 18:39:54 host kernel: [  137.287012]  [<ffffffff810616e3>] ? worker_thread+0x0/0x21d
>Apr 14 18:39:54 host kernel: [  137.287068]  [<ffffffff81064bc9>] ? kthread+0x79/0x81
>Apr 14 18:39:54 host kernel: [  137.287124]  [<ffffffff81011baa>] ? child_rip+0xa/0x20
>Apr 14 18:39:54 host kernel: [  137.292927]  [<ffffffff81064b50>] ? kthread+0x0/0x81
>Apr 14 18:39:54 host kernel: [  137.292984]  [<ffffffff81011ba0>] ? child_rip+0x0/0x20
>Apr 14 18:39:54 host kernel: [  137.293041] ---[ end trace 0ce5491cb936fb17 ]---
>Apr 14 18:39:54 host kernel: [  137.306180] ata9.00: failed to IDENTIFY (I/O error, err_mask=0x2)

That's interesting.  It really appears have not a lot to do with sata_mv,
though there's no guarantee there.

Tejun -- this is 2.6.32, libata trying to identify a newly hot-plugged drive,
and hitting a warning in libata-sff.c.  Looks self-inflicted to me!  :)

Mikael -- any chance you could someday retry this on 2.6.38.2 ?

Thanks
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