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================================================================== BUG: KCSAN: data-race in relay_switch_subbuf / relay_switch_subbuf write to 0xffff88813d1d1238 of 8 bytes by interrupt on cpu 1: relay_switch_subbuf+0x39d/0x3b0 kernel/relay.c:708 relay_reserve include/linux/relay.h:248 [inline] __blk_add_trace+0x6a7/0x700 kernel/trace/blktrace.c:276 blk_add_trace_rq kernel/trace/blktrace.c:848 [inline] blk_add_trace_rq_complete+0x1af/0x1c0 kernel/trace/blktrace.c:880 trace_block_rq_complete include/trace/events/block.h:147 [inline] blk_update_request+0x807/0x850 block/blk-mq.c:896 scsi_end_request+0x52/0x470 drivers/scsi/scsi_lib.c:539 scsi_io_completion+0x95/0x1f0 drivers/scsi/scsi_lib.c:977 scsi_finish_command+0x1b7/0x1c0 drivers/scsi/scsi.c:198 scsi_complete+0x19e/0x1d0 drivers/scsi/scsi_lib.c:1441 blk_complete_reqs block/blk-mq.c:1131 [inline] blk_done_softirq+0x92/0xc0 block/blk-mq.c:1136 __do_softirq+0xf2/0x2c7 kernel/softirq.c:571 __irq_exit_rcu kernel/softirq.c:650 [inline] irq_exit_rcu+0x41/0x70 kernel/softirq.c:662 common_interrupt+0x9f/0xc0 arch/x86/kernel/irq.c:240 asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:640 native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline] arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline] acpi_safe_halt drivers/acpi/processor_idle.c:112 [inline] acpi_idle_do_entry drivers/acpi/processor_idle.c:570 [inline] acpi_idle_enter+0x283/0x340 drivers/acpi/processor_idle.c:707 cpuidle_enter_state+0x2de/0x960 drivers/cpuidle/cpuidle.c:239 cpuidle_enter+0x3c/0x60 drivers/cpuidle/cpuidle.c:356 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:236 [inline] do_idle+0x1a7/0x250 kernel/sched/idle.c:303 cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:400 start_secondary+0x78/0x80 arch/x86/kernel/smpboot.c:264 secondary_startup_64_no_verify+0xcf/0xdb write to 0xffff88813d1d1238 of 8 bytes by task 21864 on cpu 0: relay_switch_subbuf+0x39d/0x3b0 kernel/relay.c:708 relay_reserve include/linux/relay.h:248 [inline] __blk_add_trace+0x6a7/0x700 kernel/trace/blktrace.c:276 blk_add_trace_rq kernel/trace/blktrace.c:848 [inline] blk_add_trace_rq_insert+0x1b2/0x1c0 kernel/trace/blktrace.c:855 trace_block_rq_insert include/trace/events/block.h:213 [inline] dd_insert_request+0x30b/0x570 block/mq-deadline.c:802 dd_insert_requests+0xfc/0x140 block/mq-deadline.c:839 blk_mq_sched_insert_requests+0xc0/0x300 block/blk-mq-sched.c:477 blk_mq_dispatch_plug_list+0x1e9/0x2c0 block/blk-mq.c:2758 blk_mq_flush_plug_list+0x38a/0x3e0 block/blk-mq.c:2800 __blk_flush_plug+0x25a/0x2b0 block/blk-core.c:1137 blk_finish_plug+0x44/0x60 block/blk-core.c:1161 __iomap_dio_rw+0xd27/0x1000 fs/iomap/direct-io.c:609 iomap_dio_rw+0x3c/0x80 fs/iomap/direct-io.c:689 ext4_dio_write_iter fs/ext4/file.c:587 [inline] ext4_file_write_iter+0xa36/0x11b0 fs/ext4/file.c:698 do_iter_write+0x494/0x750 fs/read_write.c:861 vfs_iter_write+0x4c/0x70 fs/read_write.c:902 iter_file_splice_write+0x44a/0x7c0 fs/splice.c:686 do_splice_from fs/splice.c:764 [inline] direct_splice_actor+0x80/0xa0 fs/splice.c:931 splice_direct_to_actor+0x305/0x620 fs/splice.c:886 do_splice_direct+0xfb/0x180 fs/splice.c:974 do_sendfile+0x3bf/0x910 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64 fs/read_write.c:1309 [inline] __x64_sys_sendfile64+0x10c/0x150 fs/read_write.c:1309 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+0x63/0xcd value changed: 0x0000000000000038 -> 0x0000000000000030 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 21864 Comm: syz-executor.0 Not tainted 6.2.0-rc4-syzkaller-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2023/01/16 17:38 | upstream | 5dc4c995db9e | a63719e7 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in relay_switch_subbuf / relay_switch_subbuf | ||
2023/01/07 14:41 | upstream | 1f5abbd77e2c | 1dac8c7a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in relay_switch_subbuf / relay_switch_subbuf | ||
2023/01/02 19:46 | upstream | 88603b6dc419 | ab32d508 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in relay_switch_subbuf / relay_switch_subbuf | ||
2022/12/30 04:49 | upstream | 2258c2dc850b | 44712fbc | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in relay_switch_subbuf / relay_switch_subbuf | ||
2022/12/26 05:00 | upstream | 1b929c02afd3 | 9da18ae8 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in relay_switch_subbuf / relay_switch_subbuf | |||
2022/12/22 23:28 | upstream | 0a924817d2ed | 9da18ae8 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in relay_switch_subbuf / relay_switch_subbuf | |||
2022/12/19 14:10 | upstream | f9ff5644bcc0 | 05494336 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in relay_switch_subbuf / relay_switch_subbuf | ||
2022/12/11 19:53 | upstream | 296a7b7eb792 | 67be1ae7 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in relay_switch_subbuf / relay_switch_subbuf | |||
2022/12/10 13:07 | upstream | 3ecc37918c80 | 67be1ae7 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in relay_switch_subbuf / relay_switch_subbuf | ||
2022/11/27 13:44 | upstream | faf68e3523c2 | f4470a7b | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in relay_switch_subbuf / relay_switch_subbuf | ||
2022/11/23 02:13 | upstream | eb7081409f94 | 9da37ae8 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in relay_switch_subbuf / relay_switch_subbuf | |||
2022/11/21 01:47 | upstream | 77c51ba552a1 | 5bb70014 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in relay_switch_subbuf / relay_switch_subbuf | |||
2022/11/09 09:07 | upstream | f141df371335 | 5fa28208 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in relay_switch_subbuf / relay_switch_subbuf | ||
2022/11/08 10:07 | upstream | 59f2f4b8a757 | 6feb842b | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in relay_switch_subbuf / relay_switch_subbuf | |||
2022/11/06 19:29 | upstream | 2f5065a0bc9d | 6d752409 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in relay_switch_subbuf / relay_switch_subbuf | |||
2022/11/01 14:02 | upstream | 5aaef24b5c6d | a1d8560a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in relay_switch_subbuf / relay_switch_subbuf | ||
2022/10/31 11:29 | upstream | b72018ab8236 | 2a71366b | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in relay_switch_subbuf / relay_switch_subbuf | |||
2022/10/29 11:00 | upstream | 576e61cea1e4 | 899d812a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in relay_switch_subbuf / relay_switch_subbuf | ||
2022/10/15 23:47 | upstream | 19d17ab7c68b | 67cb024c | .config | console log | report | info | [disk image] [vmlinux] | ci2-upstream-kcsan-gce | KCSAN: data-race in relay_switch_subbuf / relay_switch_subbuf |