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Description of problem: KERNEL: /usr/lib/debug/lib/modules/2.6.32-117.el6.x86_64/vmlinux DUMPFILE: /var/crash/127.0.0.1-2011-02-18-15:27:58/vmcore [PARTIAL DUMP] CPUS: 2 DATE: Fri Feb 18 15:26:53 2011 UPTIME: 02:11:48 LOAD AVERAGE: 1.50, 1.12, 2.04 TASKS: 330 NODENAME: dhcp-28-248.brq.redhat.com RELEASE: 2.6.32-117.el6.x86_64 VERSION: #1 SMP Tue Feb 15 16:29:34 EST 2011 MACHINE: x86_64 (2394 Mhz) MEMORY: 3.9 GB PANIC: "kernel BUG at fs/btrfs/inode.c:1537!" PID: 458 COMMAND: "btrfs-fixup-0" TASK: ffff8801319ba0c0 [THREAD_INFO: ffff88012fcd8000] CPU: 0 STATE: TASK_RUNNING (PANIC) crash> bt PID: 458 TASK: ffff8801319ba0c0 CPU: 0 COMMAND: "btrfs-fixup-0" #0 [ffff88012fcd9a90] machine_kexec at ffffffff8103098b #1 [ffff88012fcd9af0] crash_kexec at ffffffff810b5e42 #2 [ffff88012fcd9bc0] oops_end at ffffffff814dc560 #3 [ffff88012fcd9bf0] die at ffffffff8100f2fb #4 [ffff88012fcd9c20] do_trap at ffffffff814dbe54 #5 [ffff88012fcd9c80] do_invalid_op at ffffffff8100ceb5 #6 [ffff88012fcd9d20] invalid_op at ffffffff8100bf5b [exception RIP: btrfs_writepage_fixup_worker+301] RIP: ffffffffa0190d3d RSP: ffff88012fcd9dd0 RFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffea0001567d30 RCX: 0000000000062000 RDX: ffff8800ba612cb8 RSI: ffff880084efa3c0 RDI: ffff880084efa428 RBP: ffff88012fcd9e20 R8: ffff88012fcd9d1c R9: 0000000000000051 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000060000 R13: ffff8800ba612d90 R14: 0000000000000000 R15: 0000000000060fff ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 #7 [ffff88012fcd9e28] worker_loop at ffffffffa01b68b1 [btrfs] #8 [ffff88012fcd9ee8] kthread at ffffffff8108d976 #9 [ffff88012fcd9f48] kernel_thread at ffffffff8100c1ca Version-Release number of selected component (if applicable): kernel-2.6.32-117.el6.x86_64 How reproducible: Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info: There was some normal IO like yum debuginfo-install rhythmbox ... (Got btrfs root) bash-4.1$ sudo btrfs filesystem df / Data: total=6.84GB, used=5.95GB System, DUP: total=8.00MB, used=4.00KB System: total=4.00MB, used=0.00 Metadata, DUP: total=884.00MB, used=210.04MB Metadata: total=8.00MB, used=0.00 bash-4.1$ sudo btrfs filesystem show failed to read /dev/sr0 Label: none uuid: 3ac0e1f4-4e3c-414d-bced-c14372590725 Total devices 1 FS bytes used 6.16GB devid 1 size 9.77GB used 8.60GB path /dev/dm-0 Label: none uuid: 0ab8b872-a236-4d28-82cf-bb6c8e6b6797 Total devices 1 FS bytes used 755.68MB devid 1 size 11.72GB used 3.04GB path /dev/dm-2 Btrfs Btrfs v0.19
I hit this bug by running reproducer from bug 439917 comment 5 on -122 kernel. On -132 kernel there is no such crash, but some WARNINGs To reproduce this WARNING, you should umount btrfs partition in each loop. It can be reproduced reliably. ------------[ cut here ]------------ WARNING: at fs/btrfs/inode.c:6712 btrfs_destroy_inode+0x320/0x340 [btrfs]() (Tainted: G ---------------- T) Hardware name: System x3550 M3 -[7944I21]- Modules linked in: btrfs(T) zlib_deflate lzo_decompress lzo_compress libcrc32c autofs4 sunrpc cpufreq_ondemand acpi_cpufreq freq_table ipv6 dm_mirror dm_region_hash dm _log sg bnx2 cdc_ether usbnet mii serio_raw i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support ioatdma dca i7core_edac edac_core shpchp ext4 mbcache jbd2 sd_mod crc_t10dif mptsas mptscsih mptbase scsi_transport_sas pata_acpi ata_generic ata_piix dm_mod [last unloaded: microcode] Pid: 3490, comm: umount Tainted: G ---------------- T 2.6.32-132.el6.x86_64 #1 Call Trace: [<ffffffff81067157>] ? warn_slowpath_common+0x87/0xc0 [<ffffffff810671aa>] ? warn_slowpath_null+0x1a/0x20 [<ffffffffa0283c70>] ? btrfs_destroy_inode+0x320/0x340 [btrfs] [<ffffffff8118c71f>] ? destroy_inode+0x2f/0x60 [<ffffffff8118cb77>] ? dispose_list+0xb7/0x120 [<ffffffff8118cfaa>] ? invalidate_inodes+0xea/0x190 [<ffffffff81174adc>] ? generic_shutdown_super+0x4c/0xe0 [<ffffffff81174bd6>] ? kill_anon_super+0x16/0x60 [<ffffffff81175c50>] ? deactivate_super+0x70/0x90 [<ffffffff8119114f>] ? mntput_no_expire+0xbf/0x110 [<ffffffff8119157b>] ? sys_umount+0x7b/0x3a0 [<ffffffff810d1b82>] ? audit_syscall_entry+0x272/0x2a0 [<ffffffff8100b172>] ? system_call_fastpath+0x16/0x1b ---[ end trace 1d1ebca0a842b258 ]--- ------------[ cut here ]------------ WARNING: at fs/btrfs/inode.c:6713 btrfs_destroy_inode+0x2bf/0x340 [btrfs]() (Tainted: G W ---------------- T) Hardware name: System x3550 M3 -[7944I21]- Modules linked in: btrfs(T) zlib_deflate lzo_decompress lzo_compress libcrc32c autofs4 sunrpc cpufreq_ondemand acpi_cpufreq freq_table ipv6 dm_mirror dm_region_hash dm_log sg bnx2 cdc_ether usbnet mii serio_raw i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support ioatdma dca i7core_edac edac_core shpchp ext4 mbcache jbd2 sd_mod crc_t10dif mptsas mptscsih mptbase scsi_transport_sas pata_acpi ata_generic ata_piix dm_mod [last unloaded: microcode] Pid: 3490, comm: umount Tainted: G W ---------------- T 2.6.32-132.el6.x86_64 #1 Call Trace: [<ffffffff81067157>] ? warn_slowpath_common+0x87/0xc0 [<ffffffff810671aa>] ? warn_slowpath_null+0x1a/0x20 [<ffffffffa0283c0f>] ? btrfs_destroy_inode+0x2bf/0x340 [btrfs] [<ffffffff8118c71f>] ? destroy_inode+0x2f/0x60 [<ffffffff8118cb77>] ? dispose_list+0xb7/0x120 [<ffffffff8118cfaa>] ? invalidate_inodes+0xea/0x190 [<ffffffff81174adc>] ? generic_shutdown_super+0x4c/0xe0 [<ffffffff81174bd6>] ? kill_anon_super+0x16/0x60 [<ffffffff81175c50>] ? deactivate_super+0x70/0x90 [<ffffffff8119114f>] ? mntput_no_expire+0xbf/0x110 [<ffffffff8119157b>] ? sys_umount+0x7b/0x3a0 [<ffffffff810d1b82>] ? audit_syscall_entry+0x272/0x2a0 [<ffffffff8100b172>] ? system_call_fastpath+0x16/0x1b ---[ end trace 1d1ebca0a842b259 ]--- ------------[ cut here ]------------ WARNING: at fs/btrfs/extent-tree.c:3898 btrfs_free_block_groups+0x21f/0x2a0 [btrfs]() (Tainted: G W ---------------- T) Hardware name: System x3550 M3 -[7944I21]- Modules linked in: btrfs(T) zlib_deflate lzo_decompress lzo_compress libcrc32c autofs4 sunrpc cpufreq_ondemand acpi_cpufreq freq_table ipv6 dm_mirror dm_region_hash dm_log sg bnx2 cdc_ether usbnet mii serio_raw i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support ioatdma dca i7core_edac edac_core shpchp ext4 mbcache jbd2 sd_mod crc_t10dif mptsas mptscsih mptbase scsi_transport_sas pata_acpi ata_generic ata_piix dm_mod [last unloaded: microcode] Pid: 3490, comm: umount Tainted: G W ---------------- T 2.6.32-132.el6.x86_64 #1 Call Trace: [<ffffffff81067157>] ? warn_slowpath_common+0x87/0xc0 [<ffffffff810671aa>] ? warn_slowpath_null+0x1a/0x20 [<ffffffffa026c8ef>] ? btrfs_free_block_groups+0x21f/0x2a0 [btrfs] [<ffffffffa027d919>] ? close_ctree+0x169/0x3a0 [btrfs] [<ffffffff8118cbbc>] ? dispose_list+0xfc/0x120 [<ffffffff8118cfb6>] ? invalidate_inodes+0xf6/0x190 [<ffffffffa025e27d>] ? btrfs_put_super+0x1d/0x30 [btrfs] [<ffffffff81174aeb>] ? generic_shutdown_super+0x5b/0xe0 [<ffffffff81174bd6>] ? kill_anon_super+0x16/0x60 [<ffffffff81175c50>] ? deactivate_super+0x70/0x90 [<ffffffff8119114f>] ? mntput_no_expire+0xbf/0x110 [<ffffffff8119157b>] ? sys_umount+0x7b/0x3a0 [<ffffffff810d1b82>] ? audit_syscall_entry+0x272/0x2a0 [<ffffffff8100b172>] ? system_call_fastpath+0x16/0x1b ---[ end trace 1d1ebca0a842b25a ]--- ------------[ cut here ]------------ WARNING: at fs/btrfs/extent-tree.c:3899 btrfs_free_block_groups+0x28d/0x2a0 [btrfs]() (Tainted: G W ---------------- T) Hardware name: System x3550 M3 -[7944I21]- Modules linked in: btrfs(T) zlib_deflate lzo_decompress lzo_compress libcrc32c autofs4 sunrpc cpufreq_ondemand acpi_cpufreq freq_table ipv6 dm_mirror dm_region_hash dm_log sg bnx2 cdc_ether usbnet mii serio_raw i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support ioatdma dca i7core_edac edac_core shpchp ext4 mbcache jbd2 sd_mod crc_t10dif mptsas mptscsih mptbase scsi_transport_sas pata_acpi ata_generic ata_piix dm_mod [last unloaded: microcode] Pid: 3490, comm: umount Tainted: G W ---------------- T 2.6.32-132.el6.x86_64 #1 Call Trace: [<ffffffff81067157>] ? warn_slowpath_common+0x87/0xc0 [<ffffffff810671aa>] ? warn_slowpath_null+0x1a/0x20 [<ffffffffa026c95d>] ? btrfs_free_block_groups+0x28d/0x2a0 [btrfs] [<ffffffffa027d919>] ? close_ctree+0x169/0x3a0 [btrfs] [<ffffffff8118cbbc>] ? dispose_list+0xfc/0x120 [<ffffffff8118cfb6>] ? invalidate_inodes+0xf6/0x190 [<ffffffffa025e27d>] ? btrfs_put_super+0x1d/0x30 [btrfs] [<ffffffff81174aeb>] ? generic_shutdown_super+0x5b/0xe0 [<ffffffff81174bd6>] ? kill_anon_super+0x16/0x60 [<ffffffff81175c50>] ? deactivate_super+0x70/0x90 [<ffffffff8119114f>] ? mntput_no_expire+0xbf/0x110 [<ffffffff8119157b>] ? sys_umount+0x7b/0x3a0 [<ffffffff810d1b82>] ? audit_syscall_entry+0x272/0x2a0 [<ffffffff8100b172>] ? system_call_fastpath+0x16/0x1b ---[ end trace 1d1ebca0a842b25b ]--- ------------[ cut here ]------------ WARNING: at fs/btrfs/extent-tree.c:8372 btrfs_free_block_groups+0x1d3/0x2a0 [btrfs]() (Tainted: G W ---------------- T) Hardware name: System x3550 M3 -[7944I21]- Modules linked in: btrfs(T) zlib_deflate lzo_decompress lzo_compress libcrc32c autofs4 sunrpc cpufreq_ondemand acpi_cpufreq freq_table ipv6 dm_mirror dm_region_hash dm_log sg bnx2 cdc_ether usbnet mii serio_raw i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support ioatdma dca i7core_edac edac_core shpchp ext4 mbcache jbd2 sd_mod crc_t10dif mptsas mptscsih mptbase scsi_transport_sas pata_acpi ata_generic ata_piix dm_mod [last unloaded: microcode] Pid: 3490, comm: umount Tainted: G W ---------------- T 2.6.32-132.el6.x86_64 #1 Call Trace: [<ffffffff81067157>] ? warn_slowpath_common+0x87/0xc0 [<ffffffff810671aa>] ? warn_slowpath_null+0x1a/0x20 [<ffffffffa026c8a3>] ? btrfs_free_block_groups+0x1d3/0x2a0 [btrfs] [<ffffffffa027d919>] ? close_ctree+0x169/0x3a0 [btrfs] [<ffffffff8118cbbc>] ? dispose_list+0xfc/0x120 [<ffffffff8118cfb6>] ? invalidate_inodes+0xf6/0x190 [<ffffffffa025e27d>] ? btrfs_put_super+0x1d/0x30 [btrfs] [<ffffffff81174aeb>] ? generic_shutdown_super+0x5b/0xe0 [<ffffffff81174bd6>] ? kill_anon_super+0x16/0x60 [<ffffffff81175c50>] ? deactivate_super+0x70/0x90 [<ffffffff8119114f>] ? mntput_no_expire+0xbf/0x110 [<ffffffff8119157b>] ? sys_umount+0x7b/0x3a0 [<ffffffff810d1b82>] ? audit_syscall_entry+0x272/0x2a0 [<ffffffff8100b172>] ? system_call_fastpath+0x16/0x1b ---[ end trace 1d1ebca0a842b25c ]--- space_info has 1073480704 free, is not full space_info total=1082130432, used=94208, pinned=0, reserved=101376, may_use=0, readonly=8454144
with this guiltyfunc: bug 527824 bug 528295 bug 528296 bug 528521 bug 528768 bug 530380 bug 536855 bug 536985 bug 542694 bug 562008
Since RHEL 6.2 External Beta has begun, and this bug remains unresolved, it has been rejected as it is not proposed as exception or blocker. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux.
*** This bug has been marked as a duplicate of bug 698324 ***