Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in kswapd / wakeup_kswapd mm | 1 | 1643d | 1643d | 0/26 | closed as invalid on 2019/11/19 13:44 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in kswapd / wakeup_kswapd mm | 1 | 1643d | 1643d | 0/26 | closed as invalid on 2019/11/19 13:44 |
================================================================== BUG: KCSAN: data-race in kswapd / wakeup_kswapd read to 0xffff88821fffca84 of 4 bytes by task 9322 on cpu 0: wakeup_kswapd+0xc9/0x3f0 mm/vmscan.c:3985 wake_all_kswapds+0x54/0xb0 mm/page_alloc.c:4178 __alloc_pages_slowpath+0xc76/0xee0 mm/page_alloc.c:4449 __alloc_pages_nodemask+0x2c8/0x310 mm/page_alloc.c:4776 alloc_pages_current+0xd1/0x170 mm/mempolicy.c:2192 alloc_pages include/linux/gfp.h:532 [inline] relay_alloc_buf kernel/relay.c:136 [inline] relay_create_buf kernel/relay.c:177 [inline] relay_open_buf.part.0+0x219/0x600 kernel/relay.c:452 relay_open_buf kernel/relay.c:449 [inline] relay_open kernel/relay.c:599 [inline] relay_open+0x381/0x5e0 kernel/relay.c:563 do_blk_trace_setup+0x2aa/0x5f0 kernel/trace/blktrace.c:526 __blk_trace_setup+0x81/0x110 kernel/trace/blktrace.c:571 blk_trace_ioctl+0xe2/0x1d0 kernel/trace/blktrace.c:710 blkdev_ioctl+0xc6/0x1160 block/ioctl.c:592 block_ioctl+0x95/0xc0 fs/block_dev.c:1954 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0x991/0xc60 fs/ioctl.c:696 ksys_ioctl+0xbd/0xe0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x4c/0x60 fs/ioctl.c:718 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 write to 0xffff88821fffca84 of 4 bytes by task 1775 on cpu 1: kswapd_try_to_sleep mm/vmscan.c:3839 [inline] kswapd+0x51d/0x800 mm/vmscan.c:3926 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: 1 PID: 1775 Comm: kswapd1 Not tainted 5.4.0-syzkaller #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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2019/11/30 01:04 | https://github.com/google/ktsan.git kcsan | ef798c30ba4e | 4f7e1d0f | .config | console log | report | ci2-upstream-kcsan-gce |