http://bugzilla.novell.com/show_bug.cgi?id=631245 http://bugzilla.novell.com/show_bug.cgi?id=631245#c0 Summary: kernel oops: mdadm --stop /dev/md2. /dev/md2 is a btrfs filesystem Classification: openSUSE Product: openSUSE 11.3 Version: Final Platform: Other OS/Version: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: jnelson-suse@jamponi.net QAContact: qa@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.8) Gecko/20100723 SUSE/3.6.8-0.1.1 Firefox/3.6.8 /dev/md2 is a raid1, formatted as btrfs. I accidentally tried to stop the raid (mdadm /dev/md2 --stop). This is the result. Aug 13 23:32:14 turnip kernel: [2795444.485013] BUG: unable to handle kernel NULL pointer dereference at 0000000000000030 Aug 13 23:32:14 turnip kernel: [2795444.485075] IP: [<ffffffffa065865b>] btrfs_print_leaf+0x3b/0x640 [btrfs] Aug 13 23:32:14 turnip kernel: [2795444.485136] PGD 0 Aug 13 23:32:14 turnip kernel: [2795444.485153] Oops: 0000 [#1] SMP Aug 13 23:32:14 turnip kernel: [2795444.485181] last sysfs file: /sys/devices/virtual/block/md2/md/level Aug 13 23:32:14 turnip kernel: [2795444.485217] CPU 1 Aug 13 23:32:14 turnip kernel: [2795444.485230] Modules linked in: ip6table_filter ip6_tables md5 lp parport_pc af_packet joydev st sr_mod cdrom ipt_MASQUERADE ipt_REDIRECT xt_pkttype xt_physdev xt_TCPMSS xt_tcpudp ipt_LOG xt_limit xt_mark iptable_nat nf_nat iptable_mangle xt_MARK nfsd exportfs nfs lockd fscache nfs_acl auth_rpcgss sunrpc bridge stp llc mperf xt_NOTRACK ipt_REJECT xt_state iptable_raw iptable_filter nf_conntrack_netbios_ns nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 ip_tables x_tables tcp_westwood fuse nls_utf8 btrfs zlib_deflate crc32c libcrc32c ext4 jbd2 crc16 loop_fish2 loop ata_generic kvm_amd ppdev kvm pcspkr pata_atiixp k10temp tg3 parport i2c_piix4 edac_core sg edac_mce_amd shpchp r8169 pci_hotplug button raid456 async_raid6_recov async_pq raid6_pq async_xor xor async_memcpy async_tx raid10 raid1 raid0 ohci_hcd radeon ttm drm_kms_helper ehci_hcd drm ssb mmc_core pcmcia i2c_algo_bit pcmcia_core usbcore sd_mod dm_mirror dm_region_hash dm_log dm_mod edd fan thermal processor thermal_sys ah Aug 13 23:32:14 turnip kernel: ci libata scsi_mod [last unloaded: parport_pc] Aug 13 23:32:14 turnip kernel: [2795444.486226] Aug 13 23:32:14 turnip kernel: [2795444.486241] Pid: 16108, comm: umount Tainted: G A 2.6.34-12-default #1 TA790GX XE/TA790GX XE Aug 13 23:32:14 turnip kernel: [2795444.486287] RIP: 0010:[<ffffffffa065865b>] [<ffffffffa065865b>] btrfs_print_leaf+0x3b/0x640 [btrfs] Aug 13 23:32:14 turnip kernel: [2795444.486347] RSP: 0018:ffff8800ba9c3ac8 EFLAGS: 00010286 Aug 13 23:32:14 turnip kernel: [2795444.486375] RAX: 00000000fffffffb RBX: 0000000000000000 RCX: ffff88001ab52738 Aug 13 23:32:14 turnip kernel: [2795444.486412] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffff8800bac93800 Aug 13 23:32:14 turnip kernel: [2795444.486449] RBP: 00000016a3707000 R08: 0000000000000001 R09: 0000000000000000 Aug 13 23:32:14 turnip kernel: [2795444.486485] R10: 00000000fffffffb R11: 0000000000000001 R12: ffff8800ba9c2000 Aug 13 23:32:14 turnip kernel: [2795444.486522] R13: 00000000fffffffb R14: 0000000000000000 R15: 0000000000000000 Aug 13 23:32:14 turnip kernel: [2795444.486559] FS: 00007f159fb9f740(0000) GS:ffff880001e80000(0000) knlGS:00000000f74b16c0 Aug 13 23:32:14 turnip kernel: [2795444.486599] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Aug 13 23:32:14 turnip kernel: [2795444.486630] CR2: 0000000000000030 CR3: 00000000b4823000 CR4: 00000000000006e0 Aug 13 23:32:14 turnip kernel: [2795444.486667] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Aug 13 23:32:14 turnip kernel: [2795444.486704] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Aug 13 23:32:14 turnip kernel: [2795444.486741] Process umount (pid: 16108, threadinfo ffff8800ba9c2000, task ffff88008404c640) Aug 13 23:32:14 turnip kernel: [2795444.486780] Stack: Aug 13 23:32:14 turnip kernel: [2795444.486793] 0000000000000010 ffffffff00008050 ffff88001ab526a8 ffff8800bac93800 Aug 13 23:32:14 turnip kernel: [2795444.486847] <0> 00000016a3707000 ffff8800ba9c3c00 00000016a3707000 00000000001000a8 Aug 13 23:32:14 turnip kernel: [2795444.486908] <0> 0000000000000000 ffffffff811207b1 ffff88004927c4e0 ffff88009771c910 Aug 13 23:32:14 turnip kernel: [2795444.486973] Call Trace: Aug 13 23:32:14 turnip kernel: [2795444.487031] [<ffffffffa065171e>] __btrfs_free_extent+0x64e/0x710 [btrfs] Aug 13 23:32:14 turnip kernel: [2795444.487092] [<ffffffffa06518dc>] run_delayed_tree_ref+0xfc/0x1a0 [btrfs] Aug 13 23:32:14 turnip kernel: [2795444.487155] [<ffffffffa0654f05>] run_clustered_refs+0xb5/0x210 [btrfs] Aug 13 23:32:14 turnip kernel: [2795444.487216] [<ffffffffa0655127>] btrfs_run_delayed_refs+0xc7/0x210 [btrfs] Aug 13 23:32:14 turnip kernel: [2795444.487277] [<ffffffffa0662476>] commit_cowonly_roots+0x76/0xf0 [btrfs] Aug 13 23:32:14 turnip kernel: [2795444.487353] [<ffffffffa066309b>] btrfs_commit_transaction+0x2fb/0x750 [btrfs] Aug 13 23:32:14 turnip kernel: [2795444.487420] [<ffffffff8117d2ca>] vfs_quota_sync+0x1aa/0x340 Aug 13 23:32:14 turnip kernel: [2795444.487456] [<ffffffff81152c3a>] __sync_filesystem+0x3a/0x90 Aug 13 23:32:14 turnip kernel: [2795444.487492] [<ffffffff8112fbc1>] generic_shutdown_super+0x21/0x100 Aug 13 23:32:14 turnip kernel: [2795444.487526] [<ffffffff8112fcf9>] kill_anon_super+0x9/0x40 Aug 13 23:32:14 turnip kernel: [2795444.487557] [<ffffffff811309b2>] deactivate_super+0x62/0x90 Aug 13 23:32:14 turnip kernel: [2795444.487591] [<ffffffff81148f89>] sys_umount+0x59/0xd0 Aug 13 23:32:14 turnip kernel: [2795444.487623] [<ffffffff81002efb>] system_call_fastpath+0x16/0x1b Aug 13 23:32:14 turnip kernel: [2795444.487662] [<00007f159f5058c7>] 0x7f159f5058c7 Aug 13 23:32:14 turnip kernel: [2795444.487687] Code: 58 48 89 f3 65 4c 8b 24 25 48 b5 00 00 49 81 ec d8 1f 00 00 48 89 6c 24 60 4c 89 6c 24 70 4c 89 74 24 78 4c 89 bc 24 80 00 00 00 <48> 8b 46 30 41 83 44 24 1c 01 49 bf 00 00 00 00 00 16 00 00 49 Aug 13 23:32:14 turnip kernel: [2795444.488108] RIP [<ffffffffa065865b>] btrfs_print_leaf+0x3b/0x640 [btrfs] Aug 13 23:32:14 turnip kernel: [2795444.488167] RSP <ffff8800ba9c3ac8> Aug 13 23:32:14 turnip kernel: [2795444.488186] CR2: 0000000000000030 Aug 13 23:32:14 turnip kernel: [2795444.492073] ---[ end trace 5bc4833a659e3762 ]--- Reproducible: Always Steps to Reproduce: 1. 2. 3. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.