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watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.0:27335] Modules linked in: irq event stamp: 18338 hardirqs last enabled at (18337): [<ffff80000ca05bc8>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (18337): [<ffff80000ca05bc8>] exit_to_kernel_mode+0x38/0x120 arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (18338): [<ffff80000ca07844>] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline] hardirqs last disabled at (18338): [<ffff80000ca07844>] el1_interrupt+0x24/0x54 arch/arm64/kernel/entry-common.c:486 softirqs last enabled at (18284): [<ffff8000080109d4>] _stext+0x9d4/0x107c softirqs last disabled at (18107): [<ffff800008019cb0>] ____do_softirq+0x10/0x20 arch/arm64/kernel/irq.c:79 CPU: 0 PID: 27335 Comm: syz-executor.0 Not tainted 6.1.0-rc6-syzkaller-00337-gbf82d38c91f8 #0 Hardware name: linux,dummy-virt (DT) pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __arch_copy_from_user+0x1b0/0x230 arch/arm64/lib/copy_template.S:164 lr : copyin lib/iov_iter.c:183 [inline] lr : copyin+0xb8/0x120 lib/iov_iter.c:175 sp : ffff800013f27830 x29: ffff800013f27830 x28: ffff800013f27c30 x27: ffff80000dc70d98 x26: 00000000000a6000 x25: ffff800013f27c38 x24: ffff00000619c000 x23: 0000ffff7ca00000 x22: 0000ffff7caa6000 x21: ffff00000619c000 x20: 0000ffff7caa6000 x19: 0000000000001000 x18: ffff00006a9a4c00 x17: ffff80005ca0e000 x16: ffff800010ce8000 x15: 0000ffff7caa6000 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 x8 : 0000000000000000 x7 : 0000000000000000 x6 : ffff00000619c7c0 x5 : ffff00000619d000 x4 : 0000000000000000 x3 : ffff8000091077c8 x2 : 00000000000007c0 x1 : 0000ffff7caa6800 x0 : ffff00000619c000 Call trace: __arch_copy_from_user+0x1b0/0x230 arch/arm64/lib/copy_template.S:158 copy_page_from_iter_atomic+0x1d8/0xd00 lib/iov_iter.c:820 generic_perform_write+0x218/0x3ec mm/filemap.c:3761 __generic_file_write_iter+0x1e8/0x394 mm/filemap.c:3881 generic_file_write_iter+0xc0/0x29c mm/filemap.c:3913 call_write_iter include/linux/fs.h:2191 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x4c4/0x740 fs/read_write.c:584 ksys_write+0xec/0x1d0 fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __arm64_sys_write+0x6c/0xa0 fs/read_write.c:646 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x6c/0x260 arch/arm64/kernel/syscall.c:52 el0_svc_common.constprop.0+0xc4/0x254 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x50/0x14c arch/arm64/kernel/syscall.c:206 el0_svc+0x54/0x140 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0xb8/0xc0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2022/11/28 01:42 | upstream | bf82d38c91f8 | f4470a7b | .config | console log | report | info | ci-qemu2-arm64 | BUG: soft lockup in generic_file_write_iter | |||
2023/01/05 19:11 | linux-next | cc3c08b41a9c | 1dac8c7a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | INFO: rcu detected stall in generic_file_write_iter |