------------[ cut here ]------------ HSR: Could not send supervision frame WARNING: CPU: 1 PID: 8313 at net/hsr/hsr_device.c:299 send_hsr_supervision_frame+0x889/0xb40 net/hsr/hsr_device.c:299 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 8313 Comm: rsyslogd Not tainted 5.9.0-rc8-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x198/0x1fd lib/dump_stack.c:118 panic+0x382/0x7fb kernel/panic.c:231 __warn.cold+0x20/0x4b kernel/panic.c:600 report_bug+0x1bd/0x210 lib/bug.c:198 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:234 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536 RIP: 0010:send_hsr_supervision_frame+0x889/0xb40 net/hsr/hsr_device.c:299 Code: 03 31 ff 89 de e8 c7 71 58 f9 84 db 0f 85 8b fd ff ff e8 9a 75 58 f9 48 c7 c7 00 29 67 89 c6 05 52 e6 36 03 01 e8 89 b2 28 f9 <0f> 0b e9 6c fd ff ff e8 7b 75 58 f9 41 be 42 00 00 00 ba 01 00 00 RSP: 0000:ffffc900004e8c48 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff88801aa19380 RSI: ffffffff815f5a55 RDI: fffff5200009d17b RBP: 00000000000088fb R08: 0000000000000001 R09: ffffffff8d0c3abf R10: 0000000000000000 R11: 0000000000000000 R12: ffff888051e1ae80 R13: 0000000000000000 R14: ffff888051882ce8 R15: ffff88802cf255c0 hsr_announce+0x122/0x320 net/hsr/hsr_device.c:404 call_timer_fn+0x1ac/0x760 kernel/time/timer.c:1413 expire_timers kernel/time/timer.c:1458 [inline] __run_timers.part.0+0x67c/0xaa0 kernel/time/timer.c:1755 __run_timers kernel/time/timer.c:1736 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1768 __do_softirq+0x1f8/0xb23 kernel/softirq.c:298 asm_call_irq_on_stack+0xf/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0x9b/0xd0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x235/0x280 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x51/0xf0 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:770 [inline] RIP: 0010:console_unlock+0xb4a/0xe60 kernel/printk/printk.c:2509 Code: 89 48 c1 e8 03 42 80 3c 38 00 0f 85 18 03 00 00 48 83 3d d0 87 9d 08 00 0f 84 90 01 00 00 e8 ed 5a 17 00 48 8b 7c 24 30 57 9d <0f> 1f 44 00 00 8b 5c 24 64 31 ff 89 de e8 34 57 17 00 85 db 0f 84 RSP: 0000:ffffc900024a7368 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000200 RCX: ffffffff815b7f72 RDX: ffff88801aa19380 RSI: ffffffff815ee423 RDI: 0000000000000293 RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff8d0c39e7 R10: fffffbfff1a1873c R11: 0000000000000000 R12: ffffffff84ed1670 R13: 000000000000003b R14: ffffffff8ababb30 R15: dffffc0000000000 vprintk_emit+0x2ff/0x740 kernel/printk/printk.c:2029 vprintk_func+0x8d/0x1d4 kernel/printk/printk_safe.c:393 printk+0xba/0xed kernel/printk/printk.c:2078 show_free_areas.cold+0x563/0xa29 mm/page_alloc.c:5526 show_mem+0x31/0x195 lib/show_mem.c:17 dump_header+0x171/0x624 mm/oom_kill.c:463 oom_kill_process.cold+0x10/0x15 mm/oom_kill.c:976 out_of_memory mm/oom_kill.c:1113 [inline] out_of_memory+0x358/0x13f0 mm/oom_kill.c:1045 __alloc_pages_may_oom mm/page_alloc.c:4011 [inline] __alloc_pages_slowpath.constprop.0+0x21c2/0x28c0 mm/page_alloc.c:4742 __alloc_pages_nodemask+0x62c/0x790 mm/page_alloc.c:4914 __alloc_pages include/linux/gfp.h:509 [inline] __alloc_pages_node include/linux/gfp.h:522 [inline] kmem_getpages mm/slab.c:1376 [inline] cache_grow_begin+0x71/0x4a0 mm/slab.c:2594 fallback_alloc+0x1fb/0x2e0 mm/slab.c:3141 __do_cache_alloc mm/slab.c:3279 [inline] slab_alloc mm/slab.c:3308 [inline] kmem_cache_alloc_trace+0x26f/0x300 mm/slab.c:3552 kmalloc include/linux/slab.h:554 [inline] syslog_print kernel/printk/printk.c:1392 [inline] do_syslog.part.0+0x253/0x1920 kernel/printk/printk.c:1565 do_syslog+0x49/0x60 kernel/printk/printk.c:1546 kmsg_read+0x90/0xb0 fs/proc/kmsg.c:40 pde_read fs/proc/inode.c:306 [inline] proc_reg_read+0x119/0x300 fs/proc/inode.c:316 vfs_read+0x1df/0x5a0 fs/read_write.c:479 ksys_read+0x12d/0x250 fs/read_write.c:615 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fac9230e1fd Code: Bad RIP value. RSP: 002b:00007fac8f8ade30 EFLAGS: 00000293 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000000002266540 RCX: 00007fac9230e1fd RDX: 0000000000000fff RSI: 00007fac910e25a0 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000002251260 R09: 0000000000000000 R10: 66205d3337353854 R11: 0000000000000293 R12: 000000000065e420 R13: 00007fac8f8ae9c0 R14: 00007fac92953040 R15: 0000000000000003 Kernel Offset: disabled Rebooting in 86400 seconds..