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? Jeff -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
