Kernel: linux 4.3 R4 patch: 4.3.0 test: xfstests/generic/275 "The posix write test. When write size is larger than disk free size, should write as much as possible until ENOSPC." http://oss.sgi.com/cgi-bin/gitweb.cgi?p=xfs/cmds/xfstests.git;a=blob;f=tests/generic/275;hb=HEAD With ccreg40 plugin it finishes after few hours but I believe it's false positive because it never fills up the disk as test uses dd if=/dev/zero and it's very compressible so bottleneck is CPU. I'll try to modify the test to use some incompressible file. With reg40 plugin it never finishes. [r4Hybrid] MKFS_OPTIONS="-o create=reg40" MOUNT_OPTIONS="-o noatime" i get loads of these: Nov 22 10:59:09 reiser4 kernel: [ 2760.175949] INFO: task dd:22480 blocked for more than 120 seconds. Nov 22 10:59:09 reiser4 kernel: [ 2760.176024] Tainted: G W 4.3.0 #2 Nov 22 10:59:09 reiser4 kernel: [ 2760.176072] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Nov 22 10:59:09 reiser4 kernel: [ 2760.176134] dd D c105467b 0 22480 22234 0x00000000 Nov 22 10:59:09 reiser4 kernel: [ 2760.176250] d7b51d84 00000086 d7b51d68 c105467b 00000001 d7b51d84 c10546f3 00000000 Nov 22 10:59:09 reiser4 kernel: [ 2760.176543] d7ba1a00 d7b52000 00000246 d7ba1a00 d7b51d90 c13bb9de d2338858 d7b51d98 Nov 22 10:59:09 reiser4 kernel: [ 2760.176835] c13bba42 d7b51dd0 c13bc5a5 00000000 00000001 00000000 c118eff0 d233887c Nov 22 10:59:09 reiser4 kernel: [ 2760.177127] Call Trace: Nov 22 10:59:09 reiser4 kernel: [ 2760.177186] [<c105467b>] ? get_parent_ip+0xb/0x40 Nov 22 10:59:09 reiser4 kernel: [ 2760.177236] [<c10546f3>] ? preempt_count_add+0x43/0x90 Nov 22 10:59:09 reiser4 kernel: [ 2760.177294] [<c13bb9de>] schedule+0x2e/0x80 Nov 22 10:59:09 reiser4 kernel: [ 2760.177342] [<c13bba42>] schedule_preempt_disabled+0x12/0x20 Nov 22 10:59:09 reiser4 kernel: [ 2760.177395] [<c13bc5a5>] mutex_lock_nested+0x125/0x370 Nov 22 10:59:09 reiser4 kernel: [ 2760.177450] [<c118eff0>] ? reiser4_sync_file_common+0x70/0xf0 Nov 22 10:59:09 reiser4 kernel: [ 2760.177502] [<c118eff0>] reiser4_sync_file_common+0x70/0xf0 Nov 22 10:59:09 reiser4 kernel: [ 2760.177554] [<c1193a4c>] write_unix_file+0x24c/0x550 Nov 22 10:59:09 reiser4 kernel: [ 2760.177606] [<c11961ca>] ? reiser4_write_dispatch+0x7a/0x290 Nov 22 10:59:09 reiser4 kernel: [ 2760.177658] [<c1196272>] reiser4_write_dispatch+0x122/0x290 Nov 22 10:59:09 reiser4 kernel: [ 2760.177710] [<c1196150>] ? setattr_dispatch_hook+0x40/0x40 Nov 22 10:59:09 reiser4 kernel: [ 2760.177765] [<c10e49e8>] __vfs_write+0x28/0xe0 Nov 22 10:59:09 reiser4 kernel: [ 2760.177819] [<c105f645>] ? percpu_down_read+0x55/0x80 Nov 22 10:59:09 reiser4 kernel: [ 2760.177869] [<c10e75e1>] ? __sb_start_write+0xb1/0xc0 Nov 22 10:59:09 reiser4 kernel: [ 2760.177919] [<c10e75e1>] ? __sb_start_write+0xb1/0xc0 Nov 22 10:59:09 reiser4 kernel: [ 2760.177968] [<c10e4c2d>] vfs_write+0x8d/0x190 Nov 22 10:59:09 reiser4 kernel: [ 2760.178022] [<c10ff848>] ? __fget_light+0x68/0x80 Nov 22 10:59:09 reiser4 kernel: [ 2760.178071] [<c10e4e43>] SyS_write+0x53/0xc0 Nov 22 10:59:09 reiser4 kernel: [ 2760.178121] [<c13c05b7>] sysenter_do_call+0x12/0x12 Nov 22 10:59:09 reiser4 kernel: [ 2760.178169] INFO: lockdep is turned off. reiser4 ~ # vmstat 1 -SM procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu----- r b swpd free buff cache si so bi bo in cs us sy id wa st 0 0 4 6 5 437 0 0 623 1595 297 625 3 7 72 18 0 0 0 4 6 5 437 0 0 0 0 259 22 0 0 100 0 0 0 0 4 6 5 437 0 0 0 0 255 16 0 0 100 0 0 0 0 4 6 5 437 0 0 0 0 255 10 0 0 100 0 0 0 0 4 6 5 437 0 0 0 0 255 12 0 0 100 0 0 0 0 4 6 5 437 0 0 0 0 255 10 0 0 100 0 0 0 0 4 6 5 437 0 0 0 0 255 14 0 0 100 0 0 0 0 4 6 5 437 0 0 0 0 255 14 0 0 100 0 0 0 0 4 6 5 437 0 0 0 0 255 12 0 0 100 0 0 -- To unsubscribe from this list: send the line "unsubscribe reiserfs-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html