On 2014/06/17 12:06, Tsutomu Itoh wrote: > On 2014/06/17 11:10, Tsutomu Itoh wrote: >> On 2014/06/17 9:47, Chris Mason wrote: >>> On 06/16/2014 07:57 PM, Tsutomu Itoh wrote: >>>> On 2014/06/17 8:52, Chris Mason wrote: >>>>> On 06/16/2014 07:28 PM, Tsutomu Itoh wrote: >>>>>> Hi Chris, >>>>>> >>>>>> On 2014/06/17 2:56, Chris Mason wrote: >>>>>>> On 06/16/2014 02:35 AM, Tsutomu Itoh wrote: >>>>>>>> I encountered soft lockup when executing 'xfstests btrfs/042' on >>>>>>>> 3.16-rc1. >>>>>>>> >>>>>>> >>>>>>> Did we recover, or was it stuck forever? >>>>>> >>>>>> The following messages are repeatedly output. >>>>>> And stuck forever. >>>>>> >>>>>> [ 1147.942181] BUG: soft lockup - CPU#0 stuck for 23s! >>>>>> [kworker/u25:4:5189] >>>>>> [ 1147.967175] BUG: soft lockup - CPU#3 stuck for 23s! >>>>>> [kworker/u25:9:5194] >>>>>> [ 1147.979172] BUG: soft lockup - CPU#4 stuck for 23s! >>>>>> [kworker/u25:15:5200] >>>>>> [ 1147.991169] BUG: soft lockup - CPU#5 stuck for 23s! >>>>>> [kworker/u25:7:5192] >>>>>> [ 1148.064153] BUG: soft lockup - CPU#6 stuck for 23s! >>>>>> [kworker/u26:3:3182] >>>>> >>>>> Can you please capture a stack trace from all the cpus? >>> >>> Very strange, please try to reproduce again, I'll dig through things here. >> >> I can reproduce it easily in my environment. >
3.16-rc1 is slower than 3.15. And, 3.16-rc1 sometimes hang up. =============== - 3.15 WARNING! - Btrfs v3.14.2-50-gea6501b IS EXPERIMENTAL WARNING! - see http://btrfs.wiki.kernel.org before using Turning ON incompat feature 'extref': increased hardlink limit per file to 65536 adding device /dev/sdc6 id 2 fs created label (null) on /dev/sdb4 nodesize 16384 leafsize 16384 sectorsize 4096 size 65.19GiB Btrfs v3.14.2-50-gea6501b FSTYP -- btrfs PLATFORM -- Linux/x86_64 luna 3.15.0 MKFS_OPTIONS -- /dev/sdc5 MOUNT_OPTIONS -- /dev/sdc5 /test6 btrfs/042 2s ... 1s Ran: btrfs/042 Passed all 1 tests FSTYP -- btrfs PLATFORM -- Linux/x86_64 luna 3.15.0 MKFS_OPTIONS -- /dev/sdc5 MOUNT_OPTIONS -- /dev/sdc5 /test6 btrfs/042 1s ... 2s Ran: btrfs/042 Passed all 1 tests ... ... --------------- - 3.16-rc1 WARNING! - Btrfs v3.14.2-50-gea6501b IS EXPERIMENTAL WARNING! - see http://btrfs.wiki.kernel.org before using Turning ON incompat feature 'extref': increased hardlink limit per file to 65536 adding device /dev/sdc6 id 2 fs created label (null) on /dev/sdb4 nodesize 16384 leafsize 16384 sectorsize 4096 size 65.19GiB Btrfs v3.14.2-50-gea6501b FSTYP -- btrfs PLATFORM -- Linux/x86_64 luna 3.16.0-rc1 MKFS_OPTIONS -- /dev/sdc5 MOUNT_OPTIONS -- /dev/sdc5 /test6 btrfs/042 2s ... 6s Ran: btrfs/042 Passed all 1 tests FSTYP -- btrfs PLATFORM -- Linux/x86_64 luna 3.16.0-rc1 MKFS_OPTIONS -- /dev/sdc5 MOUNT_OPTIONS -- /dev/sdc5 /test6 btrfs/042 6s ... [ 160.167530] BUG: soft lockup - CPU#1 ... =============== -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
