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================================================================== BUG: KCSAN: data-race in __blk_queue_split / bio_endio read to 0xffff888124f2a554 of 2 bytes by interrupt on cpu 1: bio_remaining_done block/bio.c:1760 [inline] bio_endio+0x3e/0x400 block/bio.c:1790 req_bio_endio block/blk-core.c:245 [inline] blk_update_request+0x427/0x7b0 block/blk-core.c:1464 scsi_end_request+0x6b/0x360 drivers/scsi/scsi_lib.c:576 scsi_io_completion+0x11d/0xc80 drivers/scsi/scsi_lib.c:960 scsi_finish_command+0x283/0x380 drivers/scsi/scsi.c:228 scsi_softirq_done+0x259/0x280 drivers/scsi/scsi_lib.c:1476 blk_done_softirq+0x1eb/0x250 block/blk-softirq.c:37 __do_softirq+0x115/0x33f kernel/softirq.c:292 run_ksoftirqd+0x46/0x60 kernel/softirq.c:603 smpboot_thread_fn+0x37d/0x4a0 kernel/smpboot.c:165 kthread+0x1d4/0x200 drivers/block/aoe/aoecmd.c:1253 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352 write to 0xffff888124f2a554 of 2 bytes by task 2628 on cpu 0: bio_set_flag include/linux/bio.h:239 [inline] __blk_queue_split+0x738/0xc40 block/blk-merge.c:343 blk_mq_make_request+0x104/0xf60 block/blk-mq.c:1920 generic_make_request block/blk-core.c:1066 [inline] generic_make_request+0x196/0x700 block/blk-core.c:1008 submit_bio+0x96/0x3c0 block/blk-core.c:1192 ext4_io_submit+0xdf/0x110 fs/ext4/page-io.c:384 ext4_writepages+0xefa/0x2500 fs/ext4/inode.c:2801 do_writepages+0x6b/0x170 mm/page-writeback.c:2344 __writeback_single_inode+0xaf/0x8e0 fs/fs-writeback.c:1452 writeback_sb_inodes+0x4ba/0xa50 fs/fs-writeback.c:1716 __writeback_inodes_wb+0xe8/0x1b0 fs/fs-writeback.c:1785 wb_writeback+0x557/0x6a0 fs/fs-writeback.c:1894 wb_check_background_flush fs/fs-writeback.c:1962 [inline] wb_do_writeback fs/fs-writeback.c:2050 [inline] wb_workfn+0x696/0x970 fs/fs-writeback.c:2078 process_one_work+0x3d4/0x890 kernel/workqueue.c:2264 worker_thread+0xa0/0x800 kernel/workqueue.c:2410 kthread+0x1d4/0x200 drivers/block/aoe/aoecmd.c:1253 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 2628 Comm: kworker/u4:4 Not tainted 5.5.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: writeback wb_workfn (flush-8:0) ==================================================================
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020/01/31 19:07 | https://github.com/google/ktsan.git kcsan | 245a43005292 | 0eb59c27 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
| 2020/01/29 04:22 | https://github.com/google/ktsan.git kcsan | 245a43005292 | c8e81ce4 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
| 2020/01/21 01:49 | https://github.com/google/ktsan.git kcsan | 245a43005292 | 8eda0b95 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
| 2020/01/10 01:49 | https://github.com/google/ktsan.git kcsan | 245a43005292 | 4de4e9f0 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
| 2020/01/08 22:21 | https://github.com/google/ktsan.git kcsan | 245a43005292 | ddc3e859 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
| 2020/01/07 03:44 | https://github.com/google/ktsan.git kcsan | 245a43005292 | 53430d97 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
| 2019/12/31 01:28 | https://github.com/google/ktsan.git kcsan | 245a43005292 | 6b36d338 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
| 2019/12/20 09:04 | https://github.com/google/ktsan.git kcsan | 245a43005292 | 36650b4b | .config | console log | report | ci2-upstream-kcsan-gce | |||||
| 2019/12/06 09:15 | https://github.com/google/ktsan.git kcsan | ef798c30ba4e | 98b4ef2d | .config | console log | report | ci2-upstream-kcsan-gce | |||||
| 2019/12/02 08:45 | https://github.com/google/ktsan.git kcsan | ef798c30ba4e | f879db37 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
| 2019/11/28 17:41 | https://github.com/google/ktsan.git kcsan | ef798c30ba4e | 97264cb1 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
| 2019/11/19 13:32 | https://github.com/google/ktsan.git kcsan | 5863cc791e4c | 432c7650 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
| 2019/11/16 09:39 | https://github.com/google/ktsan.git kcsan | 5863cc791e4c | cdac920b | .config | console log | report | ci2-upstream-kcsan-gce | |||||
| 2019/11/10 02:11 | https://github.com/google/ktsan.git kcsan | 94c006602e13 | dc438b91 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
| 2019/11/03 15:15 | https://github.com/google/ktsan.git kcsan | 05f2236801fe | c9610487 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
| 2019/11/02 23:53 | https://github.com/google/ktsan.git kcsan | 05f2236801fe | d603afc9 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
| 2019/10/30 12:08 | https://github.com/google/ktsan.git kcsan | 05f2236801fe | 5ea87a66 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
| 2019/10/24 03:56 | https://github.com/google/ktsan.git kcsan | 05f2236801fe | b602d64b | .config | console log | report | ci2-upstream-kcsan-gce |