From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: 2.6.31-rc9 kernel BUG and mvsas Date: Sat, 12 Sep 2009 20:43:14 -0400 Message-ID: <4AAC4022.4040805@garzik.org> References: <200909090414.41274.tfjellstrom@shaw.ca> <200909091310.26058.tfjellstrom@shaw.ca> <200909091407.10111.tfjellstrom@shaw.ca> <200909101755.51459.tfjellstrom@shaw.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from srv5.dvmed.net ([207.36.208.214]:54351 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753837AbZIMAnP (ORCPT ); Sat, 12 Sep 2009 20:43:15 -0400 In-Reply-To: <200909101755.51459.tfjellstrom@shaw.ca> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: tfjellstrom@shaw.ca Cc: linux-kernel@vger.kernel.org, linux-scsi , Linux IDE mailing list 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] [] ? >>>>> __ata_qc_complete+0x5a/0xe1 [libata] >>>>> kernel: [ 971.033434] [] ? >>>>> __ata_qc_complete+0x5a/0xe1 [libata] >>>>> kernel: [ 971.033446] [] ? >>>>> warn_slowpath_common+0x77/0xa3 kernel: [ 971.033455] >>>>> [] ? enqueue_task+0x5c/0x65 kernel: [ 971.033496] >>>>> [] ? __ata_qc_complete+0x5a/0xe1 [libata] >>>>> kernel: [ 971.033519] [] ? >>>>> sas_ata_task_done+0x178/0x210 [libsas] >>>>> kernel: [ 971.033528] [] ? >>>>> blk_run_queue+0x21/0x35 kernel: [ 971.033548] [] >>>>> ? >>>>> mvs_slot_complete+0x3df/0x41b [mvsas] >>>>> kernel: [ 971.033565] [] ? mvs_int_rx+0x92/0x101 >>>>> [mvsas] kernel: [ 971.033583] [] ? >>>>> mvs_int_full+0x25/0x88 [mvsas] kernel: [ 971.033600] >>>>> [] ? mvs_64xx_isr+0x31/0x40 [mvsas] kernel: [ >>>>> 971.033617] [] ? mvs_interrupt+0x61/0x78 [mvsas] >>>>> kernel: [ 971.033625] [] ? >>>>> handle_IRQ_event+0x58/0x135 kernel: [ 971.033633] >>>>> [] ? handle_fasteoi_irq+0x7d/0xb5 kernel: [ >>>>> 971.033642] >>>>> [] ? 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] [] ? read_tsc+0xa/0x20 >> [ 600.616335] [] ? __pagevec_free+0x29/0x3b >> [ 600.616343] [] ? getnstimeofday+0x55/0xaf >> [ 600.616351] [] ? sync_page+0x0/0x46 >> [ 600.616361] [] ? io_schedule+0x63/0xa5 >> [ 600.616368] [] ? sync_page+0x41/0x46 >> [ 600.616376] [] ? __wait_on_bit_lock+0x3f/0x84 >> [ 600.616383] [] ? __lock_page+0x5d/0x63 >> [ 600.616391] [] ? wake_bit_function+0x0/0x23 >> [ 600.616401] [] ? pagevec_lookup+0x17/0x1e >> [ 600.616408] [] ? >> truncate_inode_pages_range+0x288/0x318 [ 600.616418] >> [] ? set_blocksize+0xc2/0xd2 >> [ 600.616426] [] ? sb_set_blocksize+0x17/0x43 >> [ 600.616477] [] ? ext4_fill_super+0x1cc/0x2060 [ext4] >> [ 600.616486] [] ? snprintf+0x44/0x4c >> [ 600.616493] [] ? check_disk_change+0x22/0x52 >> [ 600.616501] [] ? __down_write_nested+0x15/0xab >> [ 600.616524] [] ? get_sb_bdev+0x111/0x159 >> [ 600.616571] [] ? ext4_fill_super+0x0/0x2060 [ext4] >> [ 600.616582] [] ? vfs_kern_mount+0x95/0x111 >> [ 600.616593] [] ? do_kern_mount+0x43/0xe2 >> [ 600.616607] [] ? do_mount+0x767/0x7d6 >> [ 600.616620] [] ? sys_mount+0x85/0xc8 >> [ 600.616633] [] ? 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] [] ? ata_qc_issue+0x10a/0x347 [libata] >> [ 649.780593] [] ? ata_qc_issue+0x10a/0x347 [libata] >> [ 649.780607] [] ? warn_slowpath_common+0x77/0xa3 >> [ 649.780649] [] ? ata_scsi_pass_thru+0x0/0x240 >> [libata] [ 649.780690] [] ? ata_qc_issue+0x10a/0x347 >> [libata] [ 649.780733] [] ? scsi_get_command+0x75/0x97 >> [scsi_mod] [ 649.780776] [] ? >> ata_scsi_pass_thru+0x0/0x240 [libata] [ 649.780815] [] >> ? scsi_done+0x0/0xc [scsi_mod] [ 649.780858] [] ? >> __ata_scsi_queuecmd+0x185/0x1dc [libata] >> [ 649.780896] [] ? scsi_done+0x0/0xc [scsi_mod] >> [ 649.780918] [] ? sas_queuecommand+0x83/0x25d [libsas] >> [ 649.780956] [] ? scsi_dispatch_cmd+0x1c0/0x23c >> [scsi_mod] >> [ 649.780996] [] ? scsi_request_fn+0x3a5/0x506 >> [scsi_mod] [ 649.781006] [] ? del_timer+0x59/0x62 >> [ 649.781016] [] ? blk_execute_rq_nowait+0x65/0x89 >> [ 649.781032] [] ? sg_common_write+0x489/0x4ab [sg] >> [ 649.781042] [] ? __freed_request+0x26/0x83 >> [ 649.781056] [] ? sg_new_write+0x23e/0x269 [sg] >> [ 649.781070] [] ? sg_ioctl+0x26e/0xb63 [sg] >> [ 649.781080] [] ? inotify_d_instantiate+0x12/0x39 >> [ 649.781088] [] ? autoremove_wake_function+0x0/0x2e >> [ 649.781098] [] ? fd_install+0x2e/0x5a >> [ 649.781105] [] ? vfs_ioctl+0x56/0x6c >> [ 649.781111] [] ? do_vfs_ioctl+0x437/0x475 >> [ 649.781118] [] ? sys_ioctl+0x51/0x70 >> [ 649.781128] [] ? 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