From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Carlos R. Mafra" Subject: kernel BUG at /home/mafra/linux-2.6/fs/btrfs/volumes.c:2828! Date: Fri, 9 Apr 2010 00:23:52 +0200 Message-ID: <20100408222352.GA4485@Pilar> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii To: linux-btrfs@vger.kernel.org Return-path: List-ID: I've just got this bug in the latest 2.6.34-rc3-00388 kernel. I wasn't doing anything fancy, just doing some 'git log' in a small wmaker repo I have here. After I got this bug the cpu went to 100% and I had to reboot with the button because the laptop was not responding to any commands (but the mouse was moving and X seemed ok) I have the full dmesg (64 KB) which I can upload somewhere if needed. But for now I just would like to know if this bug is known to people in the list. [ 8150.547096] ------------[ cut here ]------------ [ 8150.547101] kernel BUG at /home/mafra/linux-2.6/fs/btrfs/volumes.c:2828! [ 8150.547103] invalid opcode: 0000 [#1] SMP [ 8150.547107] last sysfs file: /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq [ 8150.547109] CPU 1 [ 8150.547111] Modules linked in: ppp_deflate ppp_async ppp_generic slhc option usbserial snd_seq snd_seq_device uvcvideo snd_hda_codec_idt snd_hda_in tel iwlagn sky2 snd_hda_codec ehci_hcd snd_hwdep i2c_i801 evdev [ 8150.547125] [ 8150.547128] Pid: 1606, comm: btrfs-delalloc- Not tainted 2.6.34-rc3-00388-gf5284e7 #48 VAIO/VGN-FZ240E [ 8150.547131] RIP: 0010:[] [] btrfs_rmap_block+0x2c9/0x2d0 [ 8150.547139] RSP: 0018:ffff88007aeab7f0 EFLAGS: 00010246 [ 8150.547142] RAX: 0000000000000000 RBX: 0000000000010000 RCX: ffffffffffffffff [ 8150.547144] RDX: 0000001e821d0000 RSI: 0000001e821d0000 RDI: ffff88007ef1fa28 [ 8150.547147] RBP: ffff88007aeab870 R08: 0000000000000000 R09: ffff88007aeab8a8 [ 8150.547149] R10: 0000000000000000 R11: ffff88005ae73580 R12: 0000000000000000 [ 8150.547151] R13: ffff88007ae9c0e8 R14: ffff88007aeab8ac R15: ffff88007aeab8a8 [ 8150.547154] FS: 0000000000000000(0000) GS:ffff880001b00000(0000) knlGS:0000000000000000 [ 8150.547157] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 8150.547159] CR2: 00007f4adf3d9000 CR3: 0000000001812000 CR4: 00000000000006e0 [ 8150.547161] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 8150.547164] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 8150.547166] Process btrfs-delalloc- (pid: 1606, threadinfo ffff88007aeaa000, task ffff88007f330280) [ 8150.547168] Stack: [ 8150.547170] 00000000000009b8 ffff880000000001 ffff88007acf7000 00ffffff811a0eb5 [ 8150.547173] <0> 0000000000000001 00002202400000cc ffff88007aeaa000 ffff88007aeab8a8 [ 8150.547178] <0> ffff88007aeab8a0 0000001e821d0000 ffff88007aeab860 ffff88007ae6fd80 [ 8150.547182] Call Trace: [ 8150.547188] [] exclude_super_stripes+0x61/0x110 [ 8150.547193] [] ? __tree_search+0x90/0x120 [ 8150.547196] [] btrfs_make_block_group+0x136/0x320 [ 8150.547200] [] __btrfs_alloc_chunk+0x616/0x740 [ 8150.547203] [] btrfs_alloc_chunk+0x6f/0xa0 [ 8150.547207] [] do_chunk_alloc+0x166/0x230 [ 8150.547210] [] find_free_extent+0x939/0x9f0 [ 8150.547214] [] btrfs_reserve_extent+0xc5/0x1b0 [ 8150.547218] [] ? mutex_lock+0x19/0x50 [ 8150.547227] [] submit_compressed_extents+0x10d/0x3f0 [ 8150.547231] [] async_cow_submit+0x7f/0x90 [ 8150.547234] [] run_ordered_completions+0x76/0xe0 [ 8150.547237] [] worker_loop+0x15a/0x580 [ 8150.547240] [] ? worker_loop+0x0/0x580 [ 8150.547243] [] kthread+0x8e/0xa0 [ 8150.547248] [] kernel_thread_helper+0x4/0x10 [ 8150.547250] [] ? kthread+0x0/0xa0 [ 8150.547259] [] ? kernel_thread_helper+0x0/0x10 [ 8150.547261] Code: 00 00 48 c7 c7 68 ce 75 81 e8 34 ab e8 ff 4c 8b 5d 90 4c 8b 55 98 4c 8b 4d b0 48 8b 4d a0 48 8b 45 a8 e9 af fe ff ff 0f 0b eb fe <0f> 0b eb fe 0f 1f 00 55 48 89 e5 41 55 49 89 d5 41 54 49 89 f4 [ 8150.547292] RIP [] btrfs_rmap_block+0x2c9/0x2d0 [ 8150.547296] RSP [ 8150.547310] ---[ end trace 6c5e0e4f829c2aeb ]---