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================================================================== BUG: KCSAN: data-race in console_lock / printer_should_wake write to 0xffffffff85bee448 of 1 bytes by task 13707 on cpu 1: console_kthreads_block kernel/printk/printk.c:321 [inline] console_lock+0x65/0xd0 kernel/printk/printk.c:2716 do_con_write+0x71/0x3590 drivers/tty/vt/vt.c:2908 con_write+0x25/0x420 drivers/tty/vt/vt.c:3295 process_output_block drivers/tty/n_tty.c:581 [inline] n_tty_write+0x7ea/0xb40 drivers/tty/n_tty.c:2297 do_tty_write drivers/tty/tty_io.c:1024 [inline] file_tty_write+0x3f9/0x650 drivers/tty/tty_io.c:1095 tty_write+0x24/0x30 drivers/tty/tty_io.c:1116 call_write_iter include/linux/fs.h:2058 [inline] new_sync_write fs/read_write.c:504 [inline] vfs_write+0x71c/0x890 fs/read_write.c:591 ksys_write+0xe8/0x1a0 fs/read_write.c:644 __do_sys_write fs/read_write.c:656 [inline] __se_sys_write fs/read_write.c:653 [inline] __x64_sys_write+0x3e/0x50 fs/read_write.c:653 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 read to 0xffffffff85bee448 of 1 bytes by task 14 on cpu 0: printer_should_wake+0x3d/0x1c0 kernel/printk/printk.c:3734 printk_kthread_func+0x486/0x940 kernel/printk/printk.c:3801 kthread+0x1a9/0x1e0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 value changed: 0x00 -> 0x01 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 14 Comm: pr/ttyS0 Not tainted 5.19.0-rc3-syzkaller-00146-g92f20ff72066-dirty #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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2022/06/24 14:21 | upstream | 92f20ff72066 | a371c43c | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in console_lock / printer_should_wake | |||
2022/06/23 06:31 | upstream | 3abc3ae553c7 | 912f5df7 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in console_lock / printer_should_wake | |||
2022/06/22 16:12 | upstream | ca1fdab7fd27 | 912f5df7 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in console_lock / printer_should_wake | |||
2022/06/22 03:02 | upstream | ca1fdab7fd27 | 0fc5c330 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in console_lock / printer_should_wake | |||
2022/06/21 04:14 | upstream | 78ca55889a54 | 0fc5c330 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in console_lock / printer_should_wake | |||
2022/06/20 05:54 | upstream | a111daf0c53a | 8f633d84 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in console_lock / printer_should_wake |