Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in bt_for_each / flush_end_io (2) block | 1 | 175d | 175d | 0/26 | auto-obsoleted due to no activity on 2023/11/10 08:28 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in bt_for_each / flush_end_io (2) block | 1 | 175d | 175d | 0/26 | auto-obsoleted due to no activity on 2023/11/10 08:28 |
================================================================== BUG: KCSAN: data-race in bt_for_each / flush_end_io write to 0xffff88813ba0e820 of 4 bytes by interrupt on cpu 0: flush_end_io+0x3b4/0x580 block/blk-flush.c:251 __blk_mq_end_request+0x1fd/0x230 block/blk-mq.c:1011 blk_mq_end_request+0x37/0x50 block/blk-mq.c:1023 lo_complete_rq+0xca/0x170 drivers/block/loop.c:370 blk_complete_reqs block/blk-mq.c:1099 [inline] blk_done_softirq+0x92/0xc0 block/blk-mq.c:1104 __do_softirq+0xf2/0x2c7 kernel/softirq.c:571 run_ksoftirqd+0x1f/0x30 kernel/softirq.c:934 smpboot_thread_fn+0x308/0x4a0 kernel/smpboot.c:164 kthread+0x1a9/0x1e0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 read to 0xffff88813ba0e820 of 4 bytes by task 41 on cpu 1: blk_mq_find_and_get_req block/blk-mq-tag.c:253 [inline] bt_iter block/blk-mq-tag.c:280 [inline] __sbitmap_for_each_set include/linux/sbitmap.h:275 [inline] sbitmap_for_each_set include/linux/sbitmap.h:296 [inline] bt_for_each+0x2b0/0x4b0 block/blk-mq-tag.c:317 blk_mq_queue_tag_busy_iter+0x1a9/0x310 block/blk-mq-tag.c:526 blk_mq_timeout_work+0xa7/0x2a0 block/blk-mq.c:1601 process_one_work+0x3d3/0x720 kernel/workqueue.c:2289 worker_thread+0x618/0xa70 kernel/workqueue.c:2436 kthread+0x1a9/0x1e0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 value changed: 0x0000002b -> 0xffffffff Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 41 Comm: kworker/1:1H Tainted: G W 6.1.0-rc3-syzkaller-00035-gf526d6a82242-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 Workqueue: kblockd blk_mq_timeout_work ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2022/11/02 09:02 | upstream | f526d6a82242 | 08977f5d | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in bt_for_each / flush_end_io |