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================================================================== BUG: KCSAN: data-race in __writeback_single_inode / inode_io_list_del read-write to 0xffff88800997a6b8 of 8 bytes by task 8463 on cpu 0: inode_io_list_del_locked fs/fs-writeback.c:148 [inline] inode_io_list_del+0x91/0x240 fs/fs-writeback.c:1127 evict+0xac/0x470 fs/inode.c:565 iput_final fs/inode.c:1654 [inline] iput+0x421/0x510 fs/inode.c:1680 dentry_unlink_inode+0x1f3/0x210 fs/dcache.c:374 d_delete+0x70/0xa0 fs/dcache.c:2470 vfs_rmdir+0x271/0x290 fs/namei.c:3727 do_rmdir+0x16e/0x300 fs/namei.c:3774 __do_sys_rmdir fs/namei.c:3792 [inline] __se_sys_rmdir fs/namei.c:3790 [inline] __x64_sys_rmdir+0x2c/0x30 fs/namei.c:3790 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff88800997a6b8 of 8 bytes by task 304 on cpu 1: __writeback_single_inode+0x45/0x560 fs/fs-writeback.c:1457 writeback_sb_inodes+0x6a0/0x1020 fs/fs-writeback.c:1721 wb_writeback+0x27d/0x660 fs/fs-writeback.c:1894 wb_do_writeback+0x101/0x5d0 fs/fs-writeback.c:2039 wb_workfn+0xb8/0x410 fs/fs-writeback.c:2080 process_one_work+0x3e1/0x950 kernel/workqueue.c:2272 worker_thread+0x635/0xb90 kernel/workqueue.c:2418 kthread+0x1fa/0x220 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 304 Comm: kworker/u4:3 Not tainted 5.10.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: writeback wb_workfn (flush-8:0) ==================================================================
Manager | Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
ci2-upstream-kcsan-gce | 2020/11/21 08:22 | upstream | 27bba9c532a8 | 68068804 | .config | console log | report | info | ||||
ci2-upstream-kcsan-gce | 2020/10/30 17:47 | upstream | 07e088730245 | a6e3ac3b | .config | console log | report | info | ||||
ci2-upstream-kcsan-gce | 2020/10/13 12:11 | upstream | 865c50e1d279 | bd69ee0d | .config | console log | report | info |