Re: 2.6.31-rc9 kernel BUG and mvsas
From: Jeff Garzik
Date: Sat Sep 12 2009 - 20:43:27 EST
On 09/10/2009 07:55 PM, Thomas Fjellstrom wrote:
On Wed September 9 2009, Thomas Fjellstrom wrote:
On Wed September 9 2009, Thomas Fjellstrom wrote:
On Wed September 9 2009, Jeff Garzik wrote:
On 09/09/2009 12:30 PM, Thomas Fjellstrom wrote:
No errors on that disk. Other than the one above, and its more of a
warning. However, I just rebooted to add some extra drives, thinking
everything was working a little better now that I've updated to
2.6.31-rc9, I'm treated to the following two messages right after
boot (and a system lockup to boot):
kernel: [ 971.033138] ------------[ cut here ]------------
kernel: [ 971.033211] WARNING: at drivers/ata/libata-core.c:4913
__ata_qc_complete+0x5a/0xe1 [libata]()
kernel: [ 971.033217] Hardware name: GA-MA790FXT-UD5P
kernel: [ 971.033221] Modules linked in: powernow_k8
cpufreq_conservative cpufreq_stats cpufreq_userspace
cpufreq_powersave kvm_amd kvm nfsd exportfs nfs lockd fscache nfs_acl
auth_rpcgss sunrpc bridge stp it87 hwmon_vid adt7473 firewire_sbp2
loop md_mod
snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep
snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_midi snd_rawmidi
snd_seq_midi_event snd_seq snd_timer snd_seq_device snd
amd64_edac_mod edac_core i2c_piix4 soundcore snd_page_alloc i2c_core
evdev wmi parport_pc button parport processor ext3 jbd mbcache dm_mod
sg sr_mod cdrom sd_mod crc_t10dif usbhid ata_generic ide_pci_generic
hid mvsas firewire_ohci libsas firewire_core crc_itu_t
scsi_transport_sas r8169 atiixp ide_core floppy ahci mii ohci_hcd
libata ehci_hcd scsi_mod thermal fan thermal_sys [last unloaded:
scsi_wait_scan]
kernel: [ 971.033337] Pid: 0, comm: swapper Not tainted 2.6.31-rc9
#2 kernel: [ 971.033342] Call Trace:
kernel: [ 971.033346]<IRQ> [<ffffffffa00562ca>] ?
__ata_qc_complete+0x5a/0xe1 [libata]
kernel: [ 971.033434] [<ffffffffa00562ca>] ?
__ata_qc_complete+0x5a/0xe1 [libata]
kernel: [ 971.033446] [<ffffffff8104aca0>] ?
warn_slowpath_common+0x77/0xa3 kernel: [ 971.033455]
[<ffffffff81038d06>] ? enqueue_task+0x5c/0x65 kernel: [ 971.033496]
[<ffffffffa00562ca>] ? __ata_qc_complete+0x5a/0xe1 [libata]
kernel: [ 971.033519] [<ffffffffa00f7b59>] ?
sas_ata_task_done+0x178/0x210 [libsas]
kernel: [ 971.033528] [<ffffffff8115ead1>] ?
blk_run_queue+0x21/0x35 kernel: [ 971.033548] [<ffffffffa010e2ce>]
?
mvs_slot_complete+0x3df/0x41b [mvsas]
kernel: [ 971.033565] [<ffffffffa010e39c>] ? mvs_int_rx+0x92/0x101
[mvsas] kernel: [ 971.033583] [<ffffffffa01112ba>] ?
mvs_int_full+0x25/0x88 [mvsas] kernel: [ 971.033600]
[<ffffffffa011134e>] ? mvs_64xx_isr+0x31/0x40 [mvsas] kernel: [
971.033617] [<ffffffffa010d0e5>] ? mvs_interrupt+0x61/0x78 [mvsas]
kernel: [ 971.033625] [<ffffffff8108aaac>] ?
handle_IRQ_event+0x58/0x135 kernel: [ 971.033633]
[<ffffffff8108c1a1>] ? handle_fasteoi_irq+0x7d/0xb5 kernel: [
971.033642]
[<ffffffff8101388d>] ? handle_irq+0x17/0x1d
That warning is triggered when an ata_queued_cmd is passed to
completion without the ATA_QCFLAG_ACTIVE flag being set (which
indicates the qc was started with some activity).
That possibly indicates the low-level driver (or libsas) was passing an
already-completed cmd to libata.
The added hard drives are connected to a Supermicro AOC-SASLP-MV8,
which is based on a marvel MV64460/64461/64462 chipset, which uses
the sata_mv driver.
Surely you mean 'mvsas' driver?
Yes, sorry I did mean mvsas.
I am more concerned about the actual oops/BUG rather than the warning
though. Unless the problem causing the warning is also causing the oops.
Jeff
Thanks for taking a look so far. But I'm having more and more trouble with
this card as the days go by:
[ 464.792214] drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
[ 464.792222] drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
[ 494.816170] drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
[ 494.816179] drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
[ 494.816192] drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
[ 494.816197] drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
[ 525.817335] drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
[ 525.817343] drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
[ 525.817358] drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
[ 525.817363] drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
[ 556.816148] drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
[ 556.816157] drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
[ 556.816170] drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
[ 556.816175] drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
[ 587.816171] drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
[ 587.816179] drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
[ 587.816193] drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
[ 587.816199] drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
[ 600.616255] INFO: task mount:4395 blocked for more than 120 seconds.
[ 600.616263] "echo 0> /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[ 600.616270] mount D 0000000000000000 0 4395 4229
0x00000000 [ 600.616281] ffff88012fb6f780 0000000000000082
ffff8800b808ddc8 ffff8800b80f3d60
[ 600.616290] ffff880128923c90 0000000000014800 000000000000f800
ffff88012dd91840
[ 600.616299] ffff88012dd91b38 0000000300000008 0000000000000000
ffff88010c5bfa88
[ 600.616308] Call Trace:
[ 600.616324] [<ffffffff81017015>] ? read_tsc+0xa/0x20
[ 600.616335] [<ffffffff810adc63>] ? __pagevec_free+0x29/0x3b
[ 600.616343] [<ffffffff810661e9>] ? getnstimeofday+0x55/0xaf
[ 600.616351] [<ffffffff810a8e69>] ? sync_page+0x0/0x46
[ 600.616361] [<ffffffff812dc8cb>] ? io_schedule+0x63/0xa5
[ 600.616368] [<ffffffff810a8eaa>] ? sync_page+0x41/0x46
[ 600.616376] [<ffffffff812dcade>] ? __wait_on_bit_lock+0x3f/0x84
[ 600.616383] [<ffffffff810a8e55>] ? __lock_page+0x5d/0x63
[ 600.616391] [<ffffffff8105ef14>] ? wake_bit_function+0x0/0x23
[ 600.616401] [<ffffffff810b0ad4>] ? pagevec_lookup+0x17/0x1e
[ 600.616408] [<ffffffff810b1bbd>] ?
truncate_inode_pages_range+0x288/0x318 [ 600.616418]
[<ffffffff810fc8cb>] ? set_blocksize+0xc2/0xd2
[ 600.616426] [<ffffffff810fc8f2>] ? sb_set_blocksize+0x17/0x43
[ 600.616477] [<ffffffffa04aa8e0>] ? ext4_fill_super+0x1cc/0x2060 [ext4]
[ 600.616486] [<ffffffff8117593b>] ? snprintf+0x44/0x4c
[ 600.616493] [<ffffffff810fb5b7>] ? check_disk_change+0x22/0x52
[ 600.616501] [<ffffffff812dd680>] ? __down_write_nested+0x15/0xab
[ 600.616524] [<ffffffff810dbfe6>] ? get_sb_bdev+0x111/0x159
[ 600.616571] [<ffffffffa04aa714>] ? ext4_fill_super+0x0/0x2060 [ext4]
[ 600.616582] [<ffffffff810dbc44>] ? vfs_kern_mount+0x95/0x111
[ 600.616593] [<ffffffff810dbd13>] ? do_kern_mount+0x43/0xe2
[ 600.616607] [<ffffffff810ef49d>] ? do_mount+0x767/0x7d6
[ 600.616620] [<ffffffff810ef591>] ? sys_mount+0x85/0xc8
[ 600.616633] [<ffffffff81010a02>] ? system_call_fastpath+0x16/0x1b
[ 618.816175] drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
[ 618.816184] drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
[ 618.816196] drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
[ 618.816201] drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
[ 618.816241] sd 1:0:3:0: [sdf] Unhandled error code
[ 618.816247] sd 1:0:3:0: [sdf] Result: hostbyte=DID_OK
driverbyte=DRIVER_TIMEOUT
[ 618.816255] end_request: I/O error, dev sdf, sector 160
[ 618.816263] Buffer I/O error on device md2, logical block 20
[ 618.816274] Buffer I/O error on device md2, logical block 21
[ 618.816280] Buffer I/O error on device md2, logical block 22
[ 618.816285] Buffer I/O error on device md2, logical block 23
[ 618.816291] Buffer I/O error on device md2, logical block 24
[ 618.816298] Buffer I/O error on device md2, logical block 25
[ 618.816307] Buffer I/O error on device md2, logical block 26
[ 618.816316] Buffer I/O error on device md2, logical block 27
[ 618.816324] Buffer I/O error on device md2, logical block 28
[ 618.816331] Buffer I/O error on device md2, logical block 29
[ 649.780185] drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
[ 649.780194] drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
[ 649.780208] drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
[ 649.780214] drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
[ 649.780293] ------------[ cut here ]------------
[ 649.780366] WARNING: at drivers/ata/libata-core.c:5129
ata_qc_issue+0x10a/0x347 [libata]()
[ 649.780373] Hardware name: GA-MA790FXT-UD5P
[ 649.780377] Modules linked in: ext4 jbd2 crc16 raid0 powernow_k8
cpufreq_conservative cpufreq_stats cpufreq_userspace cpufreq_powersave
kvm_amd kvm nfsd exportfs nfs lockd fscache nfs_acl auth_rpcgss sunrpc
bridge stp it87 hwmon_vid adt7473 firewire_sbp2 loop md_mod
snd_hda_codec_realtek
snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm
snd_seq_midi snd_rawmidi snd_seq_midi_event amd64_edac_mod snd_seq
edac_core snd_timer snd_seq_device snd soundcore i2c_piix4 snd_page_alloc
i2c_core evdev parport_pc wmi parport button processor ext3 jbd mbcache
dm_mod usbhid hid sg sr_mod cdrom sd_mod crc_t10dif ata_generic
ide_pci_generic firewire_ohci firewire_core ohci_hcd crc_itu_t atiixp
ide_core mvsas ehci_hcd ahci libsas libata scsi_transport_sas scsi_mod
r8169 mii floppy thermal fan thermal_sys [last unloaded: scsi_wait_scan]
[ 649.780499] Pid: 3185, comm: hddtemp Not tainted 2.6.31-rc9 #2
[ 649.780504] Call Trace:
[ 649.780551] [<ffffffffa0074f90>] ? ata_qc_issue+0x10a/0x347 [libata]
[ 649.780593] [<ffffffffa0074f90>] ? ata_qc_issue+0x10a/0x347 [libata]
[ 649.780607] [<ffffffff8104aca0>] ? warn_slowpath_common+0x77/0xa3
[ 649.780649] [<ffffffffa00790ce>] ? ata_scsi_pass_thru+0x0/0x240
[libata] [ 649.780690] [<ffffffffa0074f90>] ? ata_qc_issue+0x10a/0x347
[libata] [ 649.780733] [<ffffffffa00401d6>] ? scsi_get_command+0x75/0x97
[scsi_mod] [ 649.780776] [<ffffffffa00790ce>] ?
ata_scsi_pass_thru+0x0/0x240 [libata] [ 649.780815] [<ffffffffa003f7aa>]
? scsi_done+0x0/0xc [scsi_mod] [ 649.780858] [<ffffffffa007a4d5>] ?
__ata_scsi_queuecmd+0x185/0x1dc [libata]
[ 649.780896] [<ffffffffa003f7aa>] ? scsi_done+0x0/0xc [scsi_mod]
[ 649.780918] [<ffffffffa00a3c8e>] ? sas_queuecommand+0x83/0x25d [libsas]
[ 649.780956] [<ffffffffa003fa7c>] ? scsi_dispatch_cmd+0x1c0/0x23c
[scsi_mod]
[ 649.780996] [<ffffffffa0044ff0>] ? scsi_request_fn+0x3a5/0x506
[scsi_mod] [ 649.781006] [<ffffffff810546e0>] ? del_timer+0x59/0x62
[ 649.781016] [<ffffffff81163b70>] ? blk_execute_rq_nowait+0x65/0x89
[ 649.781032] [<ffffffffa014164f>] ? sg_common_write+0x489/0x4ab [sg]
[ 649.781042] [<ffffffff8115df56>] ? __freed_request+0x26/0x83
[ 649.781056] [<ffffffffa01421da>] ? sg_new_write+0x23e/0x269 [sg]
[ 649.781070] [<ffffffffa0142473>] ? sg_ioctl+0x26e/0xb63 [sg]
[ 649.781080] [<ffffffff81100f38>] ? inotify_d_instantiate+0x12/0x39
[ 649.781088] [<ffffffff8105eee6>] ? autoremove_wake_function+0x0/0x2e
[ 649.781098] [<ffffffff810d80bf>] ? fd_install+0x2e/0x5a
[ 649.781105] [<ffffffff810e5247>] ? vfs_ioctl+0x56/0x6c
[ 649.781111] [<ffffffff810e570a>] ? do_vfs_ioctl+0x437/0x475
[ 649.781118] [<ffffffff810e5799>] ? sys_ioctl+0x51/0x70
[ 649.781128] [<ffffffff81010a02>] ? system_call_fastpath+0x16/0x1b
[ 649.781134] ---[ end trace 9005373b1b9c6eb7 ]---
[ 680.781672] drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
[ 680.781681] drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
[ 711.781672] drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
[ 711.781681] drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
[ 741.816069] drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
[ 741.816078] drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
[ 741.816090] drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
[ 741.816096] drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
[ 772.820160] drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
[ 772.820168] drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
[ 772.820181] drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
[ 772.820186] drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
[ 803.816212] drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
[ 803.816220] drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
[ 803.816233] drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
[ 803.816239] drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
[ 803.816264] sd 1:0:3:0: [sdf] Unhandled error code
[ 803.816270] sd 1:0:3:0: [sdf] Result: hostbyte=DID_OK
driverbyte=DRIVER_TIMEOUT
[ 803.816278] end_request: I/O error, dev sdf, sector 512
[ 803.816284] __ratelimit: 70 callbacks suppressed
[ 803.816290] Buffer I/O error on device md2, logical block 64
That's after bringing up a raid0 array I build a few days ago on 4
perfectly good (Seagate Baracuda 1TB 7200.12) disks, without the bad disk
plugged in. I try to mount it, and the driver hangs. Anything trying to
access any of the 4 disks hangs as well.
I know this array worked a few days ago. The most major change I've made
was upgrade from -rc8 (or -rc5, not sure if I mounted the array under
-rc8) to -rc9.
Hi, just wondering if anyone has had a chance to look at this, or if there's
some patches I should try out, or if you need me to do some testing, I'd be
glad to, thanks :)
I was hoping that some VM would jump in. The BUG in question is, from
mm/slab.c:
/*
* The slab was either on partial or free list so
* there must be at least one object available for
* allocation.
*/
BUG_ON(slabp->inuse >= cachep->num);
So I wonder if that is a double-free, indicating a bug in
SCSI/libsas/mvsas, or a VM problem of some sort.
Was free memory low on that machine, at that point, perchance?
Jeff
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