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================================================================== BUG: KCSAN: data-race in wbt_issue / wbt_issue write to 0xffff888128c95530 of 8 bytes by task 17648 on cpu 0: wbt_issue block/blk-wbt.c:618 [inline] wbt_issue+0xaf/0xf0 block/blk-wbt.c:603 __rq_qos_issue+0x4a/0x80 block/blk-rq-qos.c:54 rq_qos_issue block/blk-rq-qos.h:159 [inline] blk_mq_start_request+0x32a/0x370 block/blk-mq.c:688 scsi_mq_prep_fn drivers/scsi/scsi_lib.c:1602 [inline] scsi_queue_rq+0x943/0x1850 drivers/scsi/scsi_lib.c:1672 blk_mq_dispatch_rq_list+0xbe9/0xe40 block/blk-mq.c:1273 blk_mq_do_dispatch_sched+0x11d/0x260 block/blk-mq-sched.c:115 blk_mq_sched_dispatch_requests+0x2b4/0x380 block/blk-mq-sched.c:211 __blk_mq_run_hw_queue+0xb7/0x160 block/blk-mq.c:1403 __blk_mq_delay_run_hw_queue+0x31b/0x3a0 block/blk-mq.c:1471 blk_mq_run_hw_queue+0x103/0x1c0 block/blk-mq.c:1508 blk_mq_sched_insert_requests+0x1ca/0x2e0 block/blk-mq-sched.c:444 blk_mq_flush_plug_list+0x572/0x6c0 block/blk-mq.c:1772 blk_flush_plug_list+0x271/0x2a0 block/blk-core.c:1766 blk_finish_plug block/blk-core.c:1783 [inline] blk_finish_plug+0x60/0x84 block/blk-core.c:1779 do_blockdev_direct_IO+0x48b6/0x78c0 fs/direct-io.c:1355 __blockdev_direct_IO+0x86/0xa0 fs/direct-io.c:1412 ext4_direct_IO_read fs/ext4/inode.c:3835 [inline] ext4_direct_IO+0x361/0xfb0 fs/ext4/inode.c:3869 generic_file_read_iter+0x1b0/0x1440 mm/filemap.c:2303 ext4_file_read_iter fs/ext4/file.c:77 [inline] ext4_file_read_iter+0xfa/0x240 fs/ext4/file.c:65 call_read_iter include/linux/fs.h:1889 [inline] generic_file_splice_read+0x35c/0x500 fs/splice.c:307 do_splice_to+0xf2/0x130 fs/splice.c:877 splice_direct_to_actor+0x1a1/0x510 fs/splice.c:954 do_splice_direct+0x161/0x1e0 fs/splice.c:1063 do_sendfile+0x384/0x7f0 fs/read_write.c:1464 __do_sys_sendfile64 fs/read_write.c:1525 [inline] __se_sys_sendfile64 fs/read_write.c:1511 [inline] __x64_sys_sendfile64+0x12a/0x140 fs/read_write.c:1511 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 write to 0xffff888128c95530 of 8 bytes by task 17620 on cpu 1: wbt_issue block/blk-wbt.c:618 [inline] wbt_issue+0xaf/0xf0 block/blk-wbt.c:603 __rq_qos_issue+0x4a/0x80 block/blk-rq-qos.c:54 rq_qos_issue block/blk-rq-qos.h:159 [inline] blk_mq_start_request+0x32a/0x370 block/blk-mq.c:688 scsi_mq_prep_fn drivers/scsi/scsi_lib.c:1602 [inline] scsi_queue_rq+0x943/0x1850 drivers/scsi/scsi_lib.c:1672 blk_mq_dispatch_rq_list+0xbe9/0xe40 block/blk-mq.c:1273 blk_mq_do_dispatch_sched+0x11d/0x260 block/blk-mq-sched.c:115 blk_mq_sched_dispatch_requests+0x2b4/0x380 block/blk-mq-sched.c:211 __blk_mq_run_hw_queue+0xb7/0x160 block/blk-mq.c:1403 __blk_mq_delay_run_hw_queue+0x31b/0x3a0 block/blk-mq.c:1471 blk_mq_run_hw_queue+0x103/0x1c0 block/blk-mq.c:1508 blk_mq_sched_insert_requests+0x1ca/0x2e0 block/blk-mq-sched.c:444 blk_mq_flush_plug_list+0x572/0x6c0 block/blk-mq.c:1772 blk_flush_plug_list+0x271/0x2a0 block/blk-core.c:1766 blk_finish_plug block/blk-core.c:1783 [inline] blk_finish_plug+0x60/0x84 block/blk-core.c:1779 do_blockdev_direct_IO+0x48b6/0x78c0 fs/direct-io.c:1355 __blockdev_direct_IO+0x86/0xa0 fs/direct-io.c:1412 ext4_direct_IO_read fs/ext4/inode.c:3835 [inline] ext4_direct_IO+0x361/0xfb0 fs/ext4/inode.c:3869 generic_file_read_iter+0x1b0/0x1440 mm/filemap.c:2303 ext4_file_read_iter fs/ext4/file.c:77 [inline] ext4_file_read_iter+0xfa/0x240 fs/ext4/file.c:65 call_read_iter include/linux/fs.h:1889 [inline] generic_file_splice_read+0x35c/0x500 fs/splice.c:307 do_splice_to+0xf2/0x130 fs/splice.c:877 splice_direct_to_actor+0x1a1/0x510 fs/splice.c:954 do_splice_direct+0x161/0x1e0 fs/splice.c:1063 do_sendfile+0x384/0x7f0 fs/read_write.c:1464 __do_sys_sendfile64 fs/read_write.c:1525 [inline] __se_sys_sendfile64 fs/read_write.c:1511 [inline] __x64_sys_sendfile64+0x12a/0x140 fs/read_write.c:1511 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 17620 Comm: syz-executor.1 Not tainted 5.4.0-rc7+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2019/11/17 12:31 | https://github.com/google/ktsan.git kcsan | 5863cc791e4c | d5696d51 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/11/16 12:26 | https://github.com/google/ktsan.git kcsan | 5863cc791e4c | cdac920b | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/11/12 09:19 | https://github.com/google/ktsan.git kcsan | 7f2955e0d056 | 048f2d49 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/11/12 01:01 | https://github.com/google/ktsan.git kcsan | 94c006602e13 | 377d77fa | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/11/09 22:30 | https://github.com/google/ktsan.git kcsan | 94c006602e13 | dc438b91 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/11/08 17:48 | https://github.com/google/ktsan.git kcsan | 94c006602e13 | 1e35461e | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/11/07 21:46 | https://github.com/google/ktsan.git kcsan | 94c006602e13 | f39aff9e | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/11/07 13:36 | https://github.com/google/ktsan.git kcsan | 94c006602e13 | d797d201 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/11/06 22:00 | https://github.com/google/ktsan.git kcsan | 94c006602e13 | da505f84 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/11/06 02:49 | https://github.com/google/ktsan.git kcsan | 94c006602e13 | bc2c6e45 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/11/06 01:12 | https://github.com/google/ktsan.git kcsan | 94c006602e13 | af5c522d | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/11/05 06:41 | https://github.com/google/ktsan.git kcsan | 94c006602e13 | 76630fc9 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/11/04 15:00 | https://github.com/google/ktsan.git kcsan | 94c006602e13 | 18e12644 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/11/03 21:47 | https://github.com/google/ktsan.git kcsan | 05f2236801fe | b35fad31 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/11/03 11:10 | https://github.com/google/ktsan.git kcsan | 05f2236801fe | c9610487 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/11/02 23:37 | https://github.com/google/ktsan.git kcsan | 05f2236801fe | d603afc9 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/11/01 19:52 | https://github.com/google/ktsan.git kcsan | 05f2236801fe | 997ccc67 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/10/28 17:37 | https://github.com/google/ktsan.git kcsan | 05f2236801fe | 439d7b14 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/10/26 13:01 | https://github.com/google/ktsan.git kcsan | 05f2236801fe | 25bb509e | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/10/26 00:14 | https://github.com/google/ktsan.git kcsan | 05f2236801fe | 413926c5 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/10/25 13:11 | https://github.com/google/ktsan.git kcsan | 05f2236801fe | 04ca72cd | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/10/24 08:03 | https://github.com/google/ktsan.git kcsan | 05f2236801fe | d01bb02a | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/10/23 14:32 | https://github.com/google/ktsan.git kcsan | 05f2236801fe | b602d64b | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/10/23 02:21 | https://github.com/google/ktsan.git kcsan | 05f2236801fe | d0686497 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/10/15 23:48 | https://github.com/google/ktsan.git kcsan | e3d315561216 | d4ea592f | .config | console log | report | ci2-upstream-kcsan-gce |