Messages in this thread | | | Date | Wed, 13 Apr 2011 09:29:53 -0700 | From | Ben Greear <> | Subject | WARNING at libata-core.c:5015 in 2.6.39-rc3-wl+, then lockup. |
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This on an multi-core Atom based appliance. Using SSD for hard-drive. Fedora 14 OS.
2.6.39-rc* has been very flaky for me on this system (haven't tried other machines yet), and I'm pretty sure I saw similar bugs on earlier 39-rc kernels though they often crashed on other things as well...
I can provide more info as needed.
This is the warning that hits... /* * We guarantee to LLDs that they will have at least one * non-zero sg if the command is a data command. */ if (WARN_ON_ONCE(ata_is_data(prot) && (!qc->sg || !qc->n_elem || !qc->nbytes))) goto sys_err;
After the warning and the errors below, the system locks hard. The same system works fine on 2.6.38 kernels.
WARNING: at /home/greearb/git/linux.wireless-testing/drivers/ata/libata-core.c:5015 ata_qc_issue+0x15d/0x296() Hardware name: To Be Filled By O.E.M. Modules linked in: fuse macvlan pktgen coretemp hwmon nfs lockd fscache auth_rpcgss nfs_acl sunrpc ipv6 uinput arc4 ath9k snd_hda_codec_realtek mac80] Pid: 1745, comm: agetty Not tainted 2.6.39-rc3-wl+ #58 Call Trace: [<c043a11a>] warn_slowpath_common+0x6a/0x7f [<c06a9395>] ? ata_qc_issue+0x15d/0x296 [<c043a143>] warn_slowpath_null+0x14/0x18 [<c06a9395>] ata_qc_issue+0x15d/0x296 [<c06af2c7>] __ata_scsi_queuecmd+0x15b/0x1a0 [<c06ae9cf>] ? ata_scsiop_mode_sense+0x25c/0x25c [<c06af38e>] ata_scsi_queuecmd+0x3c/0x63 [<c0690dbe>] scsi_dispatch_cmd+0x161/0x1ee [<c0695ef8>] scsi_request_fn+0x319/0x44a [<c05b5c5e>] __blk_run_queue+0x5d/0x8d [<c05b601d>] blk_run_queue+0x22/0x33 [<c06956d3>] scsi_run_queue+0x28a/0x30e [<c0691040>] ? __scsi_put_command+0x59/0x5f [<c06961d4>] scsi_next_command+0x2d/0x39 [<c0696cfd>] scsi_io_completion+0x3e8/0x41f [<c069683a>] ? scsi_device_unbusy+0x8c/0x92 [<c0690b5b>] scsi_finish_command+0xc5/0xcd [<c0696e25>] scsi_softirq_done+0xdd/0xe5 [<c05bb0c2>] blk_done_softirq+0x66/0x73 [<c043fbda>] __do_softirq+0xb1/0x17c [<c043fb29>] ? __local_bh_enable+0x8c/0x8c <IRQ> [<c043f9aa>] ? irq_exit+0x43/0x8e [<c0403b43>] ? do_IRQ+0x81/0x95 [<c07fa92e>] ? common_interrupt+0x2e/0x40 [<c05b00d8>] ? crypto_shash_show+0x10/0x3f [<c0431109>] ? __might_sleep+0x1/0xe4 [<c0505f20>] ? __getblk+0x30/0x321 [<c050582e>] ? submit_bh+0xf8/0x107 [<c0506a4f>] ? ll_rw_block+0x61/0x76 [<c050710f>] ? __breadahead+0x13/0x3b [<c054ab89>] ? __ext4_get_inode_loc+0x29b/0x34e [<c054bc11>] ? ext4_iget+0x57/0x6a8 [<c055216f>] ? ext4_lookup+0x66/0xb8 [<c04ed4ea>] ? d_alloc_and_lookup+0x3d/0x54 [<c04eeaed>] ? walk_component+0x138/0x2b7 [<c04ef1f8>] ? link_path_walk+0x8a/0x394 [<c04eed69>] ? do_last+0xfd/0x502 [<c04ef612>] ? path_openat+0x9b/0x28a [<c04ef8cc>] ? do_filp_open+0x3d/0x62 [<c04eaaec>] ? open_exec+0x1d/0x72 [<c04eb52e>] ? do_execve+0x8c/0x22e [<c040830a>] ? sys_execve+0x31/0x54 [<c07fa452>] ? ptregs_execve+0x12/0x20 [<c07fa35c>] ? sysenter_do_call+0x12/0x38 ---[ end trace 876a5fd18a969c02 ]--- ata1.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 ata1.01: failed command: READ DMA ata1.01: cmd c8/00:18:48:ba:cf/00:00:00:00:00/f0 tag 0 dma 12288 in res 50/00:00:28:ba:cf/00:00:00:00:00/f0 Emask 0x40 (internal error) ata1.01: status: { DRDY } ata1.01: configured for UDMA/100 sd 0:0:1:0: [sda] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE sd 0:0:1:0: [sda] Sense Key : Aborted Command [current] [descriptor] Descriptor sense data with sense descriptors (in hex): 72 0b 00 00 00 00 00 0c 00 0a 80 00 00 00 00 00 00 cf ba 28 sd 0:0:1:0: [sda] Add. Sense: No additional sense information sd 0:0:1:0: [sda] CDB: Read(10): 28 00 00 cf ba 48 00 00 18 00 end_request: I/O error, dev sda, sector 13613640 ata1: EH complete
Thanks, Ben
-- Ben Greear <greearb@candelatech.com> Candela Technologies Inc http://www.candelatech.com
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