bisecting cause commit starting from f40ddce88593482919761f74910f42f4b84c004b building syzkaller on 98682e5e2aefc9aad61354f4f3ac93be96002a2a testing commit f40ddce88593482919761f74910f42f4b84c004b with gcc (GCC) 10.2.1 20210217 kernel signature: a20fdda6284e1de4805076b3f724e927513bee772a53c4f27dc22d1ef7831f86 run #0: crashed: INFO: rcu detected stall in addrconf_rs_timer run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in addrconf_rs_timer run #3: crashed: INFO: rcu detected stall in ieee80211_tasklet_handler run #4: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #5: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #6: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #7: crashed: INFO: rcu detected stall in addrconf_rs_timer run #8: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #9: crashed: INFO: rcu detected stall in addrconf_rs_timer run #10: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #11: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #12: crashed: INFO: rcu detected stall in estimation_timer run #13: crashed: INFO: rcu detected stall in corrupted run #14: crashed: INFO: rcu detected stall in addrconf_rs_timer run #15: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #16: crashed: INFO: rcu detected stall in addrconf_rs_timer run #17: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #18: crashed: INFO: rcu detected stall in __run_timers run #19: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon testing release v5.10 testing commit 2c85ebc57b3e1817b6ce1a6b703928e113a90442 with gcc (GCC) 10.2.1 20210217 kernel signature: 5f141e4ae086409e6817ce9d751cdfb7d552f8adb2d1ef3d6d87c18b4d1705fb run #0: crashed: WARNING in __cfg80211_ibss_joined run #1: crashed: INFO: rcu detected stall in hsr_announce run #2: crashed: INFO: rcu detected stall in addrconf_rs_timer run #3: crashed: INFO: rcu detected stall in addrconf_rs_timer run #4: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: WARNING in __cfg80211_ibss_joined run #7: crashed: INFO: rcu detected stall in addrconf_rs_timer run #8: crashed: INFO: rcu detected stall in addrconf_rs_timer run #9: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/tmp/syz-executor773882351" "root@10.128.10.2:./syz-executor773882351"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.10.2 port 22 timed out lost connection testing release v5.9 testing commit bbf5c979011a099af5dc76498918ed7df445635b with gcc (GCC) 10.2.1 20210217 kernel signature: e2e25caecac98c53dcc4037f7b7493ea80c7d8d6d1cace370152d06c198de71a run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in addrconf_rs_timer run #3: crashed: INFO: rcu detected stall in addrconf_rs_timer run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #6: crashed: INFO: rcu detected stall in ieee80211_tasklet_handler run #7: crashed: INFO: rcu detected stall in addrconf_rs_timer run #8: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #9: crashed: INFO: rcu detected stall in ieee80211_tasklet_handler testing release v5.8 testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.4.1 20210217 kernel signature: ebe503c532ccb3d1993aaef10f6bc2c8917bfe36c5635f4b67af9fe784be5408 run #0: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #3: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #4: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: BUG: soft lockup in addrconf_rs_timer run #7: crashed: INFO: rcu detected stall in addrconf_rs_timer run #8: crashed: INFO: rcu detected stall in hsr_announce run #9: crashed: INFO: rcu detected stall in addrconf_rs_timer testing release v5.7 testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.4.1 20210217 kernel signature: 165c15419a41e1841f9e545c62b09764973faab07fd5dccba1741f2663589c9d run #0: crashed: INFO: rcu detected stall in __hrtimer_run_queues run #1: crashed: INFO: rcu detected stall in addrconf_rs_timer run #2: crashed: INFO: rcu detected stall in addrconf_rs_timer run #3: crashed: INFO: rcu detected stall in addrconf_rs_timer run #4: crashed: INFO: rcu detected stall in estimation_timer run #5: crashed: INFO: rcu detected stall in addrconf_rs_timer run #6: crashed: INFO: rcu detected stall in br_forward_delay_timer_expired run #7: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #8: crashed: INFO: rcu detected stall in aoecmd_cfg run #9: crashed: INFO: rcu detected stall in addrconf_rs_timer testing release v5.6 testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 with gcc (GCC) 8.4.1 20210217 kernel signature: 607b4d24bcd728fbbe58a31c361ba4de45c143eca8bdba2156ec671aa076d031 run #0: crashed: INFO: rcu detected stall in ipv6_rcv run #1: crashed: INFO: rcu detected stall in addrconf_rs_timer run #2: crashed: INFO: rcu detected stall in addrconf_rs_timer run #3: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #4: crashed: INFO: rcu detected stall in addrconf_rs_timer run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in addrconf_rs_timer run #7: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #8: crashed: INFO: rcu detected stall in ieee80211_tasklet_handler run #9: crashed: BUG: soft lockup in addrconf_rs_timer testing release v5.5 testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 with gcc (GCC) 8.4.1 20210217 kernel signature: e3ea87a5cdcdc7a07a9f946f111325bc11fa802083fed683a999bd100237afe1 run #0: crashed: INFO: rcu detected stall in addrconf_rs_timer run #1: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #2: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #3: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #4: crashed: INFO: rcu detected stall in addrconf_rs_timer run #5: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #6: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #7: crashed: INFO: rcu detected stall in addrconf_rs_timer run #8: crashed: INFO: rcu detected stall in addrconf_rs_timer run #9: OK testing release v5.4 testing commit 219d54332a09e8d8741c1e1982f5eae56099de85 with gcc (GCC) 8.4.1 20210217 kernel signature: f9022fc8d1dc65754e8233407bdf81707e0e8782cdd07acb2c7e239e71fb8aa7 run #0: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #1: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #2: crashed: INFO: rcu detected stall in ieee80211_tasklet_handler run #3: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #4: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #5: crashed: INFO: rcu detected stall in addrconf_rs_timer run #6: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #7: crashed: INFO: rcu detected stall in mac80211_hwsim_beacon run #8: OK run #9: OK testing release v5.3 testing commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8 with gcc (GCC) 8.4.1 20210217 kernel signature: 9afac535adde0aac0bcb75468d72a58c44fc9c4c934ca98816eb18219faa432f all runs: boot failed: BUG: spinlock bad magic in nf_connlabels_get testing release v5.2 testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 with gcc (GCC) 8.4.1 20210217 kernel signature: 95e3a7b0c5596d76463e8444a88f95ba032a1d51c5f84f3c540b7cdf423cdc2b all runs: boot failed: can't ssh into the instance testing release v5.1 testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd with gcc (GCC) 8.4.1 20210217 kernel signature: 47a06d801aff7f156d428698f81afec1369d9e079c1c4a17567fef5c07d0993c all runs: boot failed: can't ssh into the instance testing release v5.0 testing commit 1c163f4c7b3f621efff9b28a47abb36f7378d783 with gcc (GCC) 8.4.1 20210217 kernel signature: 578a73029469ae44402e2122661a7e001f2ba2c2a5423c2fb05026dfdc39875d all runs: boot failed: can't ssh into the instance testing release v4.20 testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be with gcc (GCC) 8.4.1 20210217 kernel signature: d6e37b78346400f17ac2cecaece04dd0124cdac19cae93e486c1da8ae6168a40 all runs: boot failed: can't ssh into the instance testing release v4.19 testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d with gcc (GCC) 8.4.1 20210217 kernel signature: fe725eacc126939f005193b9d9eb619e00da14b711d19f1e36c43c40e919f06d all runs: boot failed: can't ssh into the instance testing release v4.18 testing commit 94710cac0ef4ee177a63b5227664b38c95bbf703 with gcc (GCC) 8.4.1 20210217 kernel signature: ff3b87f059de016632c98662144f75f450e5c57c063903c8f62c3c9549b0fc36 all runs: boot failed: can't ssh into the instance testing release v4.17 testing commit 29dcea88779c856c7dc92040a0c01233263101d4 with gcc (GCC) 8.4.1 20210217 failed to run ["make" "-j" "64" "ARCH=x86_64" "CC=/syzkaller/shared/bisect_bin/gcc-8.1.0/bin/gcc" "bzImage"]: exit status 2 testing release v4.16 testing commit 0adb32858b0bddf4ada5f364a84ed60b196dbcda with gcc (GCC) 8.4.1 20210217 orc_dump.c:106:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations] orc_dump.c:111:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations] elf.c:135:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations] elf.c:140:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations] testing release v4.15 testing commit d8a5b80568a9cb66810e75b182018e9edb68e8ff with gcc (GCC) 8.4.1 20210217 orc_dump.c:106:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations] orc_dump.c:111:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations] pager.c:36:12: error: passing argument 2 to 'restrict'-qualified parameter aliases with argument 4 [-Werror=restrict] elf.c:135:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations] elf.c:140:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations] testing release v4.14 testing commit bebc6082da0a9f5d47a1ea2edc099bf671058bd4 with gcc (GCC) 8.4.1 20210217 orc_dump.c:105:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations] orc_dump.c:110:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations] elf.c:134:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations] elf.c:139:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations] pager.c:36:12: error: passing argument 2 to 'restrict'-qualified parameter aliases with argument 4 [-Werror=restrict] testing release v4.13 testing commit 569dbb88e80deb68974ef6fdd6a13edb9d686261 with gcc (GCC) 8.4.1 20210217 pager.c:35:12: error: passing argument 2 to 'restrict'-qualified parameter aliases with argument 4 [-Werror=restrict] elf.c:144:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations] elf.c:149:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations] testing release v4.12 testing commit 6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c with gcc (GCC) 8.4.1 20210217 pager.c:35:12: error: passing argument 2 to 'restrict'-qualified parameter aliases with argument 4 [-Werror=restrict] elf.c:141:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations] elf.c:146:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations] testing release v4.11 testing commit a351e9b9fc24e982ec2f0e76379a49826036da12 with gcc (GCC) 7.5.0 elf.c:141:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations] elf.c:146:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations] pager.c:35:12: error: passing argument 2 to 'restrict'-qualified parameter aliases with argument 4 [-Werror=restrict] testing release v4.10 testing commit c470abd4fde40ea6a0846a2beab642a578c0b8cd with gcc (GCC) 5.5.0 tools/include/linux/log2.h:19:1: error: ignoring attribute 'noreturn' because it conflicts with attribute 'const' [-Werror=attributes] pager.c:35:12: error: passing argument 2 to 'restrict'-qualified parameter aliases with argument 4 [-Werror=restrict] elf.c:129:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations] elf.c:134:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations] testing release v4.9 testing commit 69973b830859bc6529a7a0468ba0d80ee5117826 with gcc (GCC) 5.5.0 tools/include/linux/log2.h:19:1: error: ignoring attribute 'noreturn' because it conflicts with attribute 'const' [-Werror=attributes] elf.c:129:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations] elf.c:134:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations] pager.c:35:12: error: passing argument 2 to 'restrict'-qualified parameter aliases with argument 4 [-Werror=restrict] testing release v4.8 testing commit c8d2bc9bc39ebea8437fd974fdbc21847bb897a3 with gcc (GCC) 5.5.0 tools/include/linux/log2.h:19:1: error: ignoring attribute 'noreturn' because it conflicts with attribute 'const' [-Werror=attributes] pager.c:33:12: error: passing argument 2 to 'restrict'-qualified parameter aliases with argument 4 [-Werror=restrict] elf.c:129:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations] elf.c:134:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations] testing release v4.7 testing commit 523d939ef98fd712632d93a5a2b588e477a7565e with gcc (GCC) 5.5.0 tools/include/linux/log2.h:19:1: error: ignoring attribute 'noreturn' because it conflicts with attribute 'const' [-Werror=attributes] pager.c:33:12: error: passing argument 2 to 'restrict'-qualified parameter aliases with argument 4 [-Werror=restrict] elf.c:122:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations] elf.c:127:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations] testing release v4.6 testing commit 2dcd0af568b0cf583645c8a317dd12e344b1c72a with gcc (GCC) 5.5.0 tools/include/linux/log2.h:19:1: error: ignoring attribute 'noreturn' because it conflicts with attribute 'const' [-Werror=attributes] pager.c:33:12: error: passing argument 2 to 'restrict'-qualified parameter aliases with argument 4 [-Werror=restrict] revisions tested: 15, total time: 3h52m20.0620972s (build: 1h38m15.302794095s, test: 2h9m49.719155301s) the crash already happened on the oldest tested release commit msg: Linux 5.4 crash: INFO: rcu detected stall in mac80211_hwsim_beacon rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 0-...!: (1 GPs behind) idle=ca2/1/0x4000000000000004 softirq=13354/13359 fqs=2 (t=10502 jiffies g=8917 q=1959) rcu: rcu_preempt kthread starved for 10499 jiffies! g8917 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 rcu: RCU grace-period kthread stack dump: rcu_preempt R running task 29296 11 2 0x80004000 Call Trace: schedule+0xc1/0x260 kernel/sched/core.c:4145 schedule_timeout+0x3fa/0xe80 kernel/time/timer.c:1895 rcu_gp_fqs_loop kernel/rcu/tree.c:1639 [inline] rcu_gp_kthread+0xa43/0x1a90 kernel/rcu/tree.c:1799 kthread+0x31d/0x3e0 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 NMI backtrace for cpu 0 CPU: 0 PID: 12472 Comm: syz-executor.1 Not tainted 5.4.0-syzkaller #0 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+0x96/0xe0 lib/dump_stack.c:118 nmi_cpu_backtrace.cold.6+0x2e/0x33 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x183/0x1ac lib/nmi_backtrace.c:62 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline] rcu_dump_cpu_stacks+0x201/0x24f kernel/rcu/tree_stall.h:254 print_cpu_stall kernel/rcu/tree_stall.h:455 [inline] check_cpu_stall kernel/rcu/tree_stall.h:529 [inline] rcu_pending kernel/rcu/tree.c:2795 [inline] rcu_sched_clock_irq.cold.98+0x517/0xe43 kernel/rcu/tree.c:2244 update_process_times+0x1f/0x50 kernel/time/timer.c:1726 tick_sched_handle+0x6f/0x130 kernel/time/tick-sched.c:167 tick_sched_timer+0x3e/0xf0 kernel/time/tick-sched.c:1299 __run_hrtimer kernel/time/hrtimer.c:1514 [inline] __hrtimer_run_queues+0x297/0xa40 kernel/time/hrtimer.c:1576 hrtimer_interrupt+0x314/0x800 kernel/time/hrtimer.c:1638 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1110 [inline] smp_apic_timer_interrupt+0x18d/0x690 arch/x86/kernel/apic/apic.c:1135 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830 RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:163 [inline] RIP: 0010:unwind_next_frame+0x259/0x1ef0 arch/x86/kernel/unwind_orc.c:404 Code: 56 ff 39 d0 0f 83 a3 13 00 00 48 ba 00 00 00 00 00 fc ff df 89 c6 48 8d 3c b5 68 d1 30 8d 49 89 f8 49 c1 e8 03 45 0f b6 04 10 <48> 89 fa 83 e2 07 83 c2 03 44 38 c2 7c 28 45 84 c0 74 23 48 89 74 RSP: 0018:ffff8880b9e09628 EFLAGS: 00000217 ORIG_RAX: ffffffffffffff13 RAX: 0000000000005867 RBX: 1ffff110173c12ce RCX: ffffffff81586716 RDX: dffffc0000000000 RSI: 0000000000005867 RDI: ffffffff8d323304 RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000001 R10: ffffed10173c12eb R11: 00000000000c4ced R12: ffff8880b9e09750 R13: ffff8880b9e0973d R14: ffff8880b9e09758 R15: ffff8880b9e09708 arch_stack_walk+0x77/0xd0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x85/0xb0 kernel/stacktrace.c:123 save_stack+0x19/0x80 mm/kasan/common.c:69 set_track mm/kasan/common.c:77 [inline] __kasan_kmalloc mm/kasan/common.c:510 [inline] __kasan_kmalloc.constprop.11+0xc1/0xd0 mm/kasan/common.c:483 slab_post_alloc_hook mm/slab.h:584 [inline] slab_alloc_node mm/slub.c:2758 [inline] slab_alloc mm/slub.c:2766 [inline] kmem_cache_alloc+0xaa/0x2a0 mm/slub.c:2771 __build_skb+0x18/0x40 net/core/skbuff.c:310 __netdev_alloc_skb+0x1bb/0x420 net/core/skbuff.c:463 netdev_alloc_skb include/linux/skbuff.h:2779 [inline] dev_alloc_skb include/linux/skbuff.h:2792 [inline] __ieee80211_beacon_get+0x1117/0x1a40 net/mac80211/tx.c:4514 ieee80211_beacon_get_tim+0x84/0x770 net/mac80211/tx.c:4625 ieee80211_beacon_get include/net/mac80211.h:4728 [inline] mac80211_hwsim_beacon_tx+0xcb/0x650 drivers/net/wireless/mac80211_hwsim.c:1556 __iterate_interfaces+0xe4/0x390 net/mac80211/util.c:738 ieee80211_iterate_active_interfaces_atomic+0x72/0x120 net/mac80211/util.c:774 mac80211_hwsim_beacon+0xc5/0x190 drivers/net/wireless/mac80211_hwsim.c:1592 __run_hrtimer kernel/time/hrtimer.c:1514 [inline] __hrtimer_run_queues+0x297/0xa40 kernel/time/hrtimer.c:1576 hrtimer_run_softirq+0x196/0x2b0 kernel/time/hrtimer.c:1593 __do_softirq+0x24a/0xa97 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x167/0x190 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1d0/0x690 arch/x86/kernel/apic/apic.c:1137 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830 RIP: 0010:lock_acquire+0x171/0x360 kernel/locking/lockdep.c:4491 Code: c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 c5 01 00 00 c7 83 94 08 00 00 00 00 00 00 ff 34 24 9d <48> 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 65 8b 15 f9 82 b2 7e RSP: 0018:ffff8880b416fa30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000007 RBX: ffff8880b44d4a40 RCX: ffffffff814ec613 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8880b44d52d4 RBP: 0000000000000000 R08: 0000000000002189 R09: fffffbfff1bd9b4a R10: fffffbfff1bd9b49 R11: ffff8880b44d4a40 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:338 [inline] futex_wake+0x179/0x490 kernel/futex.c:1616 do_futex+0x554/0x1600 kernel/futex.c:3649 __do_sys_futex kernel/futex.c:3705 [inline] __se_sys_futex kernel/futex.c:3673 [inline] __x64_sys_futex+0x269/0x320 kernel/futex.c:3673 do_syscall_64+0x8e/0x4e0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x465d99 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff8ae4e7218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 000000000056bf68 RCX: 0000000000465d99 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 000000000056bf6c RBP: 000000000056bf60 R08: 000000000000000e R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf6c R13: 00007ffcded2718f R14: 00007ff8ae4e7300 R15: 0000000000022000