hrtimer: interrupt took 25959 ns rcu: rcu_check_gp_start_stall: g4348->4352 gar:15680 ga:15694 f0x1 gs:1 rcu_preempt->state:0x0 WARNING: CPU: 0 PID: 7398 at kernel/rcu/tree.c:2666 rcu_check_gp_start_stall kernel/rcu/tree.c:2660 [inline] WARNING: CPU: 0 PID: 7398 at kernel/rcu/tree.c:2666 rcu_check_gp_start_stall.cold+0x7f/0xb1 kernel/rcu/tree.c:2619 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 7398 Comm: syz-executor615 Not tainted 5.0.0-rc7+ #83 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 panic+0x2cb/0x65c kernel/panic.c:214 __warn.cold+0x20/0x45 kernel/panic.c:571 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:290 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973 RIP: 0010:rcu_check_gp_start_stall kernel/rcu/tree.c:2666 [inline] RIP: 0010:rcu_check_gp_start_stall.cold+0x7f/0xb1 kernel/rcu/tree.c:2619 Code: 48 8b 0d 93 ae 3b 07 4c 2b 0d 1c c4 3b 07 50 0f bf 05 a4 c1 3b 07 48 8b 15 45 c1 3b 07 4c 2b 05 0e c4 3b 07 50 e8 a4 c5 fb ff <0f> 0b 48 83 c4 20 49 81 fc 00 69 9a 88 74 0c 48 c7 c7 00 69 9a 88 RSP: 0018:ffff8880ae807dc0 EFLAGS: 00010086 RAX: 000000000000005e RBX: ffff8880aa25e280 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff815a92c6 RDI: ffffed1015d00faa RBP: ffff8880ae807e00 R08: 000000000000005e R09: ffffed1015d05021 R10: ffffed1015d05020 R11: ffff8880ae828107 R12: ffffffff889a6900 R13: 0000000100014001 R14: 0000000000000286 R15: dffffc0000000000 rcu_process_callbacks+0x3ba/0x1390 kernel/rcu/tree.c:2750 __do_softirq+0x266/0x95a kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x14a/0x570 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:__sanitizer_cov_trace_pc+0x26/0x50 kernel/kcov.c:101 Code: 90 90 90 90 55 48 89 e5 48 8b 75 08 65 48 8b 04 25 40 ee 01 00 65 8b 15 38 0c 92 7e 81 e2 00 01 1f 00 75 2b 8b 90 d8 12 00 00 <83> fa 02 75 20 48 8b 88 e0 12 00 00 8b 80 dc 12 00 00 48 8b 11 48 RSP: 0018:ffff8880a9bcf590 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: ffff888086a48500 RBX: ffff8880a9bcf688 RCX: ffffffff8700203f RDX: 0000000000000000 RSI: ffffffff87002051 RDI: 0000000000000001 RBP: ffff8880a9bcf590 R08: ffff888086a48500 R09: ffffed1015d05bd0 R10: ffffed1015d05bcf R11: ffff8880ae82de7b R12: ffff88809e40d742 R13: ffff8880a9bcf6a0 R14: ffff88808474e778 R15: ffff88809e40d742 xa_head include/linux/xarray.h:988 [inline] xas_start+0x1a1/0x560 lib/xarray.c:182 xas_load+0x21/0x150 lib/xarray.c:227 find_get_entry+0x13d/0x8d0 mm/filemap.c:1476 pagecache_get_page+0x4a/0x740 mm/filemap.c:1579 find_get_page include/linux/pagemap.h:272 [inline] generic_file_buffered_read mm/filemap.c:2076 [inline] generic_file_read_iter+0x716/0x2870 mm/filemap.c:2350 ext4_file_read_iter+0x180/0x3c0 fs/ext4/file.c:77 call_read_iter include/linux/fs.h:1857 [inline] generic_file_splice_read+0x4b2/0x800 fs/splice.c:308 do_splice_to+0x12a/0x190 fs/splice.c:880 splice_direct_to_actor+0x2d2/0x970 fs/splice.c:957 do_splice_direct+0x1da/0x2a0 fs/splice.c:1066 do_sendfile+0x597/0xd00 fs/read_write.c:1436 __do_sys_sendfile64 fs/read_write.c:1491 [inline] __se_sys_sendfile64 fs/read_write.c:1483 [inline] __x64_sys_sendfile64+0x15a/0x220 fs/read_write.c:1483 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x446a59 Code: e8 dc e6 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 4b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f032c353db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00000000006dcc28 RCX: 0000000000446a59 RDX: 0000000020000000 RSI: 0000000000000003 RDI: 0000000000000003 RBP: 00000000006dcc20 R08: 0000000000000000 R09: 0000000000000000 R10: 00008080fffffffe R11: 0000000000000246 R12: 00000000006dcc2c R13: 00007fff7d4161cf R14: 00007f032c3549c0 R15: 20c49ba5e353f7cf Kernel Offset: disabled Rebooting in 86400 seconds..