I have a new Dell OptiPlex 960 with a fresh Fedora 12 install, fully updated, that crashes while doing a dd from /dev/zero to an aes-xts-plain LUKS mapping. memtest86+ shows no errors after a single complete pass. From a serial console I was able to capture the backtrace(s). Anyone have suggestions on how to debug this further? Thanks. BUG: unable to handle kernel paging request at 0000000081000024 IP: [<ffffffff811247f5>] bio_integrity_free+0x3d/0x7b PGD 0 Oops: 0000 [#1] SMP last sysfs file: /sys/kernel/mm/ksm/run CPU 3 Modules linked in: ipt_MASQUERADE iptable_nat nf_nat bridge stp llc sunrpc xt_physdev ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 kvm_intel kvm uinput snd_hda_codec_analog snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device tg3 snd_pcm snd_timer snd iTCO_wdt iTCO_vendor_support e1000e i2c_i801 ppdev soundcore snd_page_alloc shpchp serio_raw parport_pc wmi parport dcdbas cryptd aes_x86_64 aes_generic xts gf128mul dm_crypt raid1 usb_storage dm_multipath ttm drm_kms_helper drm i2c_algo_bit i2c_core [last unloaded: speedstep_lib] Pid: 0, comm: swapper Not tainted 2.6.31.12-174.2.3.fc12.x86_64 #1 OptiPlex 960 RIP: 0010:[<ffffffff811247f5>] [<ffffffff811247f5>] bio_integrity_free+0x3d/0x7b RSP: 0018:ffff88002808ea80 EFLAGS: 00010202 RAX: ffff880138fa7d30 RBX: 0000000081000000 RCX: 0000000000aa0049 RDX: 0000000000000001 RSI: ffff88022c80a0c0 RDI: ffff880138fa7cc0 RBP: ffff88002808eaa0 R08: 0000000000000000 R09: 0000000000000004 R10: 0000000000000000 R11: ffffea00050118b8 R12: ffff880138fa7cc0 R13: ffff88022c80a0c0 R14: ffff88022c963800 R15: ffff880138fb3aa0 FS: 0000000000000000(0000) GS:ffff88002808b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 0000000081000024 CR3: 0000000001001000 CR4: 00000000000426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process swapper (pid: 0, threadinfo ffff88022f780000, task ffff88022f759780) Stack: ffff88002808eab0 ffff880138fa7cc0 ffff88022c80a0c0 ffff880138ef5900 <0> ffff88002808eac0 ffffffff81120023 0000000000000000 ffff880138fa7cc0 <0> ffff88002808ead0 ffffffff81345b85 ffff88002808eae0 ffffffff8111e801 Call Trace: <IRQ> [<ffffffff81120023>] bio_free+0x46/0x69 [<ffffffff81345b85>] dm_bio_destructor+0x12/0x14 [<ffffffff8111e801>] bio_put+0x2d/0x2f [<ffffffff81345f5d>] clone_endio+0x9f/0xb5 [<ffffffff8111e6d6>] bio_endio+0x2b/0x2d [<ffffffffa005f681>] crypt_dec_pending+0x52/0x79 [dm_crypt] [<ffffffffa005f855>] crypt_endio+0x9c/0xa5 [dm_crypt] [<ffffffff8111e6d6>] bio_endio+0x2b/0x2d [<ffffffff81345da4>] dec_pending+0x13d/0x15c [<ffffffff81345f67>] clone_endio+0xa9/0xb5 [<ffffffff8111e6d6>] bio_endio+0x2b/0x2d [<ffffffffa005904f>] raid_end_bio_io+0x37/0x88 [raid1] [<ffffffffa005a279>] raid1_end_write_request+0x1f3/0x20f [raid1] [<ffffffff8102d079>] ? hpet_msi_next_event+0x14/0x16 [<ffffffff8111e6d6>] bio_endio+0x2b/0x2d [<ffffffff811e9177>] req_bio_endio+0x9f/0xbe [<ffffffff811e9322>] blk_update_request+0x18c/0x32a [<ffffffff812d9ee0>] ? ata_scsi_qc_complete+0x349/0x358 [<ffffffff811e94e0>] blk_update_bidi_request+0x20/0x59 [<ffffffff811eae51>] blk_end_bidi_request+0x1f/0x5d [<ffffffff811eaecb>] blk_end_request+0x10/0x12 [<ffffffff812c07ca>] scsi_io_completion+0x1a5/0x416 [<ffffffff812b9c10>] scsi_finish_command+0xf5/0xfe [<ffffffff812c0b61>] scsi_softirq_done+0x111/0x11a [<ffffffff811f14a3>] blk_done_softirq+0x7b/0x8b [<ffffffff81057630>] __do_softirq+0xdd/0x1ad [<ffffffff81026966>] ? apic_write+0x16/0x18 [<ffffffff81012eac>] call_softirq+0x1c/0x30 [<ffffffff810143fb>] do_softirq+0x47/0x8d [<ffffffff81057342>] irq_exit+0x44/0x86 [<ffffffff814215d5>] do_IRQ+0xa5/0xbc [<ffffffff810126d3>] ret_from_intr+0x0/0x11 <EOI> [<ffffffff8101907f>] ? mwait_idle+0x91/0xae [<ffffffff8101907f>] ? mwait_idle+0x91/0xae [<ffffffff81019021>] ? mwait_idle+0x33/0xae [<ffffffff8141fc39>] ? atomic_notifier_call_chain+0x13/0x15 [<ffffffff81010bb8>] ? enter_idle+0x25/0x27 [<ffffffff81010c60>] ? cpu_idle+0xa6/0xe9 [<ffffffff8141717e>] ? start_secondary+0x1f3/0x234 Code: 48 8b 5f 60 49 89 fc 49 89 f5 48 85 db 75 04 0f 0b eb fe 48 f7 47 18 10 04 00 00 75 0e 48 8b 7b 10 48 85 ff 74 05 e8 6b ef fc ff <8b> 43 24 66 83 f8 06 75 1d 49 8b 75 18 48 89 df e8 09 eb f9 ff RIP [<ffffffff811247f5>] bio_integrity_free+0x3d/0x7b RSP <ffff88002808ea80> CR2: 0000000081000024 ---[ end trace ecd6d65d595c0086 ]--- Kernel panic - not syncing: Fatal exception in interrupt Pid: 0, comm: swapper Tainted: G D 2.6.31.12-174.2.3.fc12.x86_64 #1 Call Trace: <IRQ> [<ffffffff8141b41c>] panic+0x7a/0x12c [<ffffffff8141e66d>] oops_end+0xb2/0xc2 [<ffffffff8103456d>] no_context+0x1f6/0x205 [<ffffffff810c4a1b>] ? list_add+0x11/0x13 [<ffffffff8103471f>] __bad_area_nosemaphore+0x1a3/0x1c9 [<ffffffff8120a737>] ? __percpu_counter_add+0x47/0x64 [<ffffffff81200132>] ? percpu_counter_add.clone.0+0x14/0x16 [<ffffffff81034758>] bad_area_nosemaphore+0x13/0x15 [<ffffffff8141fa6a>] do_page_fault+0x14a/0x299 [<ffffffff8141db35>] page_fault+0x25/0x30 [<ffffffff811247f5>] ? bio_integrity_free+0x3d/0x7b [<ffffffff81120023>] bio_free+0x46/0x69 [<ffffffff81345b85>] dm_bio_destructor+0x12/0x14 [<ffffffff8111e801>] bio_put+0x2d/0x2f [<ffffffff81345f5d>] clone_endio+0x9f/0xb5 [<ffffffff8111e6d6>] bio_endio+0x2b/0x2d [<ffffffffa005f681>] crypt_dec_pending+0x52/0x79 [dm_crypt] [<ffffffffa005f855>] crypt_endio+0x9c/0xa5 [dm_crypt] [<ffffffff8111e6d6>] bio_endio+0x2b/0x2d [<ffffffff81345da4>] dec_pending+0x13d/0x15c [<ffffffff81345f67>] clone_endio+0xa9/0xb5 [<ffffffff8111e6d6>] bio_endio+0x2b/0x2d [<ffffffffa005904f>] raid_end_bio_io+0x37/0x88 [raid1] [<ffffffffa005a279>] raid1_end_write_request+0x1f3/0x20f [raid1] [<ffffffff8102d079>] ? hpet_msi_next_event+0x14/0x16 [<ffffffff8111e6d6>] bio_endio+0x2b/0x2d [<ffffffff811e9177>] req_bio_endio+0x9f/0xbe [<ffffffff811e9322>] blk_update_request+0x18c/0x32a [<ffffffff812d9ee0>] ? ata_scsi_qc_complete+0x349/0x358 [<ffffffff811e94e0>] blk_update_bidi_request+0x20/0x59 [<ffffffff811eae51>] blk_end_bidi_request+0x1f/0x5d [<ffffffff811eaecb>] blk_end_request+0x10/0x12 [<ffffffff812c07ca>] scsi_io_completion+0x1a5/0x416 [<ffffffff812b9c10>] scsi_finish_command+0xf5/0xfe [<ffffffff812c0b61>] scsi_softirq_done+0x111/0x11a [<ffffffff811f14a3>] blk_done_softirq+0x7b/0x8b [<ffffffff81057630>] __do_softirq+0xdd/0x1ad [<ffffffff81026966>] ? apic_write+0x16/0x18 [<ffffffff81012eac>] call_softirq+0x1c/0x30 [<ffffffff810143fb>] do_softirq+0x47/0x8d [<ffffffff81057342>] irq_exit+0x44/0x86 [<ffffffff814215d5>] do_IRQ+0xa5/0xbc [<ffffffff810126d3>] ret_from_intr+0x0/0x11 <EOI> [<ffffffff8101907f>] ? mwait_idle+0x91/0xae [<ffffffff8101907f>] ? mwait_idle+0x91/0xae [<ffffffff81019021>] ? mwait_idle+0x33/0xae [<ffffffff8141fc39>] ? atomic_notifier_call_chain+0x13/0x15 [<ffffffff81010bb8>] ? enter_idle+0x25/0x27 [<ffffffff81010c60>] ? cpu_idle+0xa6/0xe9 [<ffffffff8141717e>] ? start_secondary+0x1f3/0x234 _______________________________________________ kernel mailing list kernel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/kernel