From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Yan, Zheng " Subject: Re: kernel BUG at /home/mafra/linux-2.6/fs/btrfs/volumes.c:2828! Date: Fri, 9 Apr 2010 08:53:14 +0800 Message-ID: References: <20100408222352.GA4485@Pilar> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Cc: linux-btrfs@vger.kernel.org To: "Carlos R. Mafra" Return-path: In-Reply-To: <20100408222352.GA4485@Pilar> List-ID: On Fri, Apr 9, 2010 at 6:23 AM, Carlos R. Mafra wr= ote: > 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 w= maker > 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 c= ommands > (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 t= he 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 s= lhc option usbserial snd_seq snd_seq_device uvcvideo snd_hda_codec_idt = snd_hda_in =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0tel iwlagn sky2 snd_hda_c= odec ehci_hcd snd_hwdep i2c_i801 evdev > [ 8150.547125] > [ 8150.547128] Pid: 1606, comm: btrfs-delalloc- Not tainted 2.6.34-rc= 3-00388-gf5284e7 #48 VAIO/VGN-FZ240E > [ 8150.547131] RIP: 0010:[] =A0[]= btrfs_rmap_block+0x2c9/0x2d0 > [ 8150.547139] RSP: 0018:ffff88007aeab7f0 =A0EFLAGS: 00010246 > [ 8150.547142] RAX: 0000000000000000 RBX: 0000000000010000 RCX: fffff= fffffffffff > [ 8150.547144] RDX: 0000001e821d0000 RSI: 0000001e821d0000 RDI: ffff8= 8007ef1fa28 > [ 8150.547147] RBP: ffff88007aeab870 R08: 0000000000000000 R09: ffff8= 8007aeab8a8 > [ 8150.547149] R10: 0000000000000000 R11: ffff88005ae73580 R12: 00000= 00000000000 > [ 8150.547151] R13: ffff88007ae9c0e8 R14: ffff88007aeab8ac R15: ffff8= 8007aeab8a8 > [ 8150.547154] FS: =A00000000000000000(0000) GS:ffff880001b00000(0000= ) knlGS:0000000000000000 > [ 8150.547157] CS: =A00010 DS: 0000 ES: 0000 CR0: 000000008005003b > [ 8150.547159] CR2: 00007f4adf3d9000 CR3: 0000000001812000 CR4: 00000= 000000006e0 > [ 8150.547161] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 00000= 00000000000 > [ 8150.547164] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 00000= 00000000400 > [ 8150.547166] Process btrfs-delalloc- (pid: 1606, threadinfo ffff880= 07aeaa000, task ffff88007f330280) > [ 8150.547168] Stack: > [ 8150.547170] =A000000000000009b8 ffff880000000001 ffff88007acf7000 = 00ffffff811a0eb5 > [ 8150.547173] <0> 0000000000000001 00002202400000cc ffff88007aeaa000= ffff88007aeab8a8 > [ 8150.547178] <0> ffff88007aeab8a0 0000001e821d0000 ffff88007aeab860= ffff88007ae6fd80 > [ 8150.547182] Call Trace: > [ 8150.547188] =A0[] exclude_super_stripes+0x61/0x1= 10 > [ 8150.547193] =A0[] ? __tree_search+0x90/0x120 > [ 8150.547196] =A0[] btrfs_make_block_group+0x136/0= x320 > [ 8150.547200] =A0[] __btrfs_alloc_chunk+0x616/0x74= 0 > [ 8150.547203] =A0[] btrfs_alloc_chunk+0x6f/0xa0 > [ 8150.547207] =A0[] do_chunk_alloc+0x166/0x230 > [ 8150.547210] =A0[] find_free_extent+0x939/0x9f0 > [ 8150.547214] =A0[] btrfs_reserve_extent+0xc5/0x1b= 0 > [ 8150.547218] =A0[] ? mutex_lock+0x19/0x50 > [ 8150.547227] =A0[] submit_compressed_extents+0x10= d/0x3f0 > [ 8150.547231] =A0[] async_cow_submit+0x7f/0x90 > [ 8150.547234] =A0[] run_ordered_completions+0x76/0= xe0 > [ 8150.547237] =A0[] worker_loop+0x15a/0x580 > [ 8150.547240] =A0[] ? worker_loop+0x0/0x580 > [ 8150.547243] =A0[] kthread+0x8e/0xa0 > [ 8150.547248] =A0[] kernel_thread_helper+0x4/0x10 > [ 8150.547250] =A0[] ? kthread+0x0/0xa0 > [ 8150.547259] =A0[] ? kernel_thread_helper+0x0/0x1= 0 > [ 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 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 <0f> 0b eb fe 0f 1f 00 55= 48 89 e5 41 55 49 89 d5 41 54 49 89 f4 > [ 8150.547292] RIP =A0[] btrfs_rmap_block+0x2c9/0x2= d0 > [ 8150.547296] =A0RSP > [ 8150.547310] ---[ end trace 6c5e0e4f829c2aeb ]--- This has been fixed by commit http://git.kernel.org/?p=3Dlinux/kernel/git/mason/btrfs-unstable.git;a=3D= commit;h=3D9f680ce04ea19dabbbafe01b57b61930a9b70741 Yan, Zheng -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" = in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html