Bugzilla – Bug 705039
btrfs oops when running new xfstest
Last modified: 2011-08-05 21:40:46 UTC
Created attachment 439308 [details] test script for xfstest - temporarily named 255 - subject to change User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:2.0.1) Gecko/20100101 Firefox/4.0.1 I'm trying to develop a new btrfs test for xfstests. I get an oops when I try to run it for 2.6.37, 2.6.38, and 2.3.39 I'm running 11.4 (Tumbleweed) userspace. For 2.6.39 it is the Tumbleweed kernel I tested as well. The oops is: ------------[ cut here ]------------ kernel BUG at /usr/src/packages/BUILD/kernel-default-2.6.39.2/linux-2.6.39/fs/btrfs/inode.c:1651! invalid opcode: 0000 [#1] SMP last sysfs file: /sys/devices/system/cpu/cpu1/cache/index1/shared_cpu_map CPU 0 Modules linked in: btrfs zlib_deflate ip6table_filter ip6_tables iptable_filter ip_tables x_tables snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device binfmt_misc md4 md5 nls_utf8 cifs microcode mperf dm_mod snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer iTCO_wdt snd iTCO_vendor_support soundcore snd_page_alloc dcdbas i2c_i801 pcspkr serio_raw sg sr_mod cdrom e1000e usbhid uhci_hcd i915 drm_kms_helper ehci_hcd drm i2c_algo_bit video button usbcore edd fan ata_generic pata_artop thermal processor thermal_sys Pid: 3030, comm: btrfs-endio-wri Tainted: G W 2.6.39.2-36-default #1 Dell Inc. Dell DM061 /0WG864 RIP: 0010:[<ffffffffa03d08d5>] [<ffffffffa03d08d5>] insert_reserved_file_extent.clone.0+0x225/0x230 [btrfs] RSP: 0018:ffff880070a73cc0 EFLAGS: 00010282 RAX: 00000000ffffffef RBX: ffff880070faef40 RCX: ffff880070a73fd8 RDX: 0000000000000008 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff88007686cda8 R08: 0000000000000001 R09: 0000000000000001 R10: ffff8800768c24e0 R11: 0000000000000000 R12: 0000000000000000 R13: ffff880072c98800 R14: ffff8800768c24e0 R15: 0000000000100000 FS: 0000000000000000(0000) GS:ffff88007f400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00007f0c340c1000 CR3: 000000007af67000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process btrfs-endio-wri (pid: 3030, threadinfo ffff880070a72000, task ffff88007910a7c0) Stack: ffff88007686cc40 0000000000000000 0000000000000050 0000000000d00000 0000000000100000 00ff880072c98800 000000000000010a 000000000000006c ffff880072c98800 ffffffffa03cd8c3 ffff880070a73db0 0000003500000000 Call Trace: [<ffffffffa03d3ec2>] btrfs_finish_ordered_io+0x322/0x360 [btrfs] [<ffffffffa03ed55e>] end_bio_extent_writepage+0x12e/0x180 [btrfs] [<ffffffffa03faa7c>] worker_loop+0xbc/0x370 [btrfs] [<ffffffff810774b6>] kthread+0x96/0xa0 [<ffffffff8151f584>] kernel_thread_helper+0x4/0x10 Code: 48 89 44 24 39 e8 dc e3 fe ff 85 c0 75 1b 48 89 df e8 70 b9 fd ff 48 83 c4 68 31 c0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 0f 0b 0f 0b <0f> 0b 0f 0b 0f 1f 80 00 00 00 00 48 83 ec 58 48 89 5c 24 28 48 RIP [<ffffffffa03d08d5>] insert_reserved_file_extent.clone.0+0x225/0x230 [btrfs] RSP <ffff880070a73cc0> ---[ end trace 7f3c4f1d3b071fa8 ]--- Kernel failure message 2: ------------[ cut here ]------------ WARNING: at /usr/src/packages/BUILD/kernel-default-2.6.39.2/linux-2.6.39/fs/btrfs/file.c:368 btrfs_drop_extents+0x311/0x910 [btrfs]() Hardware name: Dell DM061 Modules linked in: btrfs zlib_deflate ip6table_filter ip6_tables iptable_filter ip_tables x_tables snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device binfmt_misc md4 md5 nls_utf8 cifs microcode mperf dm_mod snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer iTCO_wdt snd iTCO_vendor_support soundcore snd_page_alloc dcdbas i2c_i801 pcspkr serio_raw sg sr_mod cdrom e1000e usbhid uhci_hcd i915 drm_kms_helper ehci_hcd drm i2c_algo_bit video button usbcore edd fan ata_generic pata_artop thermal processor thermal_sys Pid: 3030, comm: btrfs-endio-wri Tainted: G W 2.6.39.2-36-default #1 Call Trace: [<ffffffff81004492>] dump_trace+0x72/0x300 [<ffffffff815139a5>] dump_stack+0x69/0x6f [<ffffffff8105671b>] warn_slowpath_common+0x7b/0xc0 [<ffffffffa03dc421>] btrfs_drop_extents+0x311/0x910 [btrfs] [<ffffffffa03d0719>] insert_reserved_file_extent.clone.0+0x69/0x230 [btrfs] [<ffffffffa03d3ec2>] btrfs_finish_ordered_io+0x322/0x360 [btrfs] [<ffffffffa03ed55e>] end_bio_extent_writepage+0x12e/0x180 [btrfs] [<ffffffffa03faa7c>] worker_loop+0xbc/0x370 [btrfs] [<ffffffff810774b6>] kthread+0x96/0xa0 [<ffffffff8151f584>] kernel_thread_helper+0x4/0x10 ---[ end trace 7f3c4f1d3b071fa7 ]--- Kernel failure message 3: ------------[ cut here ]------------ WARNING: at /usr/src/packages/BUILD/kernel-default-2.6.39.2/linux-2.6.39/fs/btrfs/file.c:368 btrfs_drop_extents+0x311/0x910 [btrfs]() Hardware name: Dell DM061 Modules linked in: btrfs zlib_deflate ip6table_filter ip6_tables iptable_filter ip_tables x_tables snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device binfmt_misc md4 md5 nls_utf8 cifs microcode mperf dm_mod snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer iTCO_wdt snd iTCO_vendor_support soundcore snd_page_alloc dcdbas i2c_i801 pcspkr serio_raw sg sr_mod cdrom e1000e usbhid uhci_hcd i915 drm_kms_helper ehci_hcd drm i2c_algo_bit video button usbcore edd fan ata_generic pata_artop thermal processor thermal_sys Pid: 3030, comm: btrfs-endio-wri Not tainted 2.6.39.2-36-default #1 Call Trace: [<ffffffff81004492>] dump_trace+0x72/0x300 [<ffffffff815139a5>] dump_stack+0x69/0x6f [<ffffffff8105671b>] warn_slowpath_common+0x7b/0xc0 [<ffffffffa03dc421>] btrfs_drop_extents+0x311/0x910 [btrfs] [<ffffffffa03d0719>] insert_reserved_file_extent.clone.0+0x69/0x230 [btrfs] [<ffffffffa03d5e7e>] btrfs_endio_direct_write+0x1ee/0x310 [btrfs] [<ffffffffa03faa7c>] worker_loop+0xbc/0x370 [btrfs] [<ffffffff810774b6>] kthread+0x96/0xa0 [<ffffffff8151f584>] kernel_thread_helper+0x4/0x10 ---[ end trace 7f3c4f1d3b071fa6 ]--- Reproducible: Always Steps to Reproduce: 1. Install xfstests per http://en.opensuse.org/SDB:XFStests 2. Reboot into a nice clean environment 3. Login to a text console 4. Set the environment variables as described in the wiki 5. run "./check 255" without first mounting the test partitions. (test 255 is attached) Actual Results: It seems to vary by which kernel I test exactly what happens, but I always get an oops. With the 2.6.39.2-36-default from Tumbleweed, I was able to interact with the system for a short while, but after cntrl-alt-F7 the system locked up and I had to hard boot. Expected Results: Test 255 is not yet a trusted test, so I don't know exactly what should have happened, but not a oops. There are at least 4 ways to run test 255. All seem problematic, but I haven't tested much since a reboot is required between tests. 1) With test partitions not mounted "./check 255" 2) With test partitions not mounted "./255" 3) With test partitions mounted "./check 255" 4) With test partitions mounted "./255" Again, test 255 is NOT finished, but it should not be causing oops messages. I have NOT tested the 3.0 kernel. This same test works to some extent on another machine. (Possibly 32-bit, I haven't chased it down.) I have no idea what it is in test 255 that causes the oops.
I just reproduced this with a 2.6.38 kernel. Previously I was testing a 2.6.39 kernel. I have NOT tried this with factory, nor with a 3.0 kernel. This time I was just confirming the oops would still trigger with a older version of the xfstest we are working on. The current version no longer triggers a oops. ==== I was working the xfstests git tree cloned via: git clone https://github.com/adityadani/xfstests # Then, get an older commit that apparently has a userspace bug that triggers a kernel oops. git checkout 1b712a4512d63502fab6 # Then prep for the test export TEST_DEV=/dev/sda3 export TEST_DIR=/xfstests_mnt export SCRATCH_DEV=/dev/sda1 export SCRATCH_MNT=/xfstests_mnt_scratch export FSTYP=btrfs umount $TEST_DIR umount $SCRATCH_MNT mkfs.btrfs $TEST_DEV mkfs.btrfs $SCRATCH_DEV mount $TEST_DEV $TEST_DIR mount $SCRATCH_DEV $SCRATCH_MNT # Then run the test ./check 255 I didn't keep the oops, but it seems reproducible enough. The oops was also put into the kde-oops catcher.
I finally tried to reproduce this with the 3.0.0-rc7-4-desktop kernel. It did NOT oops, so I think this should be closed as resolved. Greg
Closing as resolved by the 3.0 kernel.