INFO: rcu detected stall in sys_unshare (9)

Status: upstream: reported C repro on 2023/11/11 00:17
Subsystems: kernfs mm
Labels: prio:high
[Documentation on labels]
Reported-by: syzbot+872bccd9a68c6ba47718@syzkaller.appspotmail.com
First crash: 1086d, last: now
Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: INFO: rcu detected stall in corrupted (log)
Repro: C syz .config
  
Fix bisection: fixed by (bisect log) :
commit 5f6bd380c7bdbe10f7b4e8ddcceed60ce0714c6d
Author: Peter Zijlstra <peterz@infradead.org>
Date: Mon May 27 12:06:55 2024 +0000

  sched/rt: Remove default bandwidth control

  
▶ ▼ ✨ AI Jobs (1)
ID Workflow Result Correct Bug Created Started Finished Revision
6c385aa6 assessment-security DenialOfService: ❌ Exploitable: ❌ FilesystemTrigger: ❌ NetworkTrigger: ❌ PeripheralTrigger: ❌ RemoteTrigger: ❌ Unprivileged: ✅ UserNamespace: ✅ VMGuestTrigger: ❌ VMHostTrigger: ❌ ❓ INFO: rcu detected stall in sys_unshare (9) 2026/05/22 19:16 2026/05/22 19:16 2026/05/22 19:49 df8ac09c
▶ ▼ Discussions (17)
Title Replies (including bot) Last reply
[syzbot] Monthly mm report (Oct 2026) 0 (1) 2026/10/26 20:33
[syzbot] Monthly mm report (Sep 2026) 0 (1) 2026/09/25 12:33
[syzbot] Monthly kernfs report (Sep 2026) 0 (1) 2026/09/01 20:33
[syzbot] Monthly net report (Jul 2026) 0 (1) 2026/07/25 04:32
[syzbot] Monthly kernfs report (Jul 2026) 0 (1) 2026/07/01 12:32
[syzbot] Monthly mm report (May 2026) 0 (1) 2026/05/23 12:32
[syzbot] Monthly kernfs report (Feb 2026) 0 (1) 2026/02/26 12:58
[syzbot] Monthly kernfs report (Jan 2026) 0 (1) 2026/01/26 07:12
[syzbot] Monthly kernfs report (Dec 2025) 0 (1) 2025/12/26 07:48
[syzbot] Monthly kernfs report (Nov 2025) 0 (1) 2025/11/25 08:46
[syzbot] Monthly kernfs report (Sep 2025) 0 (1) 2025/09/23 13:33
[syzbot] Monthly kernfs report (Aug 2025) 0 (1) 2025/08/23 16:32
[syzbot] [bpf?] INFO: rcu detected stall in sys_unshare (9) 0 (2) 2025/03/11 15:56
[syzbot] Monthly bpf report (Feb 2025) 0 (1) 2025/02/20 19:03
[syzbot] Monthly bpf report (Mar 2024) 0 (1) 2024/03/11 10:18
[syzbot] Monthly bpf report (Jan 2024) 1 (2) 2024/01/10 00:28
[syzbot] Monthly bpf report (Dec 2023) 0 (1) 2023/12/08 13:16
▶ ▼ Similar bugs (12)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: rcu detected stall in sys_unshare (2) mm 1 1 2485d 2485d 0/29 closed as invalid on 2020/01/08 05:23
upstream INFO: rcu detected stall in sys_unshare (5) net 1 1 1748d 1748d 0/29 closed as invalid on 2022/02/08 10:10
linux-6.6 INFO: rcu detected stall in sys_unshare 1 1 467d 467d 0/2 auto-obsoleted due to no activity on 2025/10/26 06:21
upstream INFO: rcu detected stall in sys_unshare (3) net 1 1 1971d 1971d 0/29 auto-closed as invalid on 2021/09/03 04:28
linux-5.15 INFO: rcu detected stall in sys_unshare missing-backport origin:upstream 1 syz, C done 14 40d 891d 0/3 upstream: reported C repro on 2024/05/20 16:51
upstream INFO: rcu detected stall in sys_unshare (6) kernfs 1 1 1717d 1717d 0/29 auto-closed as invalid on 2022/05/15 15:21
upstream INFO: rcu detected stall in sys_unshare mm 1 3 2521d 2521d 0/29 closed as invalid on 2019/12/04 14:04
upstream INFO: rcu detected stall in sys_unshare (4) kernel 1 1 1880d 1880d 0/29 auto-closed as invalid on 2021/12/03 09:38
upstream INFO: rcu detected stall in sys_unshare (7) bpf net 1 12 1333d 1464d 0/29 auto-obsoleted due to no activity on 2023/06/03 15:22
linux-6.1 INFO: rcu detected stall in sys_unshare origin:upstream missing-backport 1 syz, C unreliable 5 782d 1059d 0/3 upstream: reported C repro on 2023/12/04 08:29
android-5-15 BUG: soft lockup in sys_unshare 1 1 906d 906d 0/2 auto-obsoleted due to no activity on 2024/08/03 08:28
upstream INFO: task hung in linkwatch_event (4) prio:low net 1 syz, C done 6022 2h02m 823d 0/29 upstream: reported C repro on 2024/07/27 06:21
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2025/02/23 06:07 37m retest repro upstream no crash log
2024/10/26 22:53 23m retest repro upstream no crash log
2024/10/21 09:49 3h35m retest repro upstream no crash log
2024/08/17 22:32 2h32m retest repro upstream report log
2024/08/17 22:32 17m retest repro upstream report log
2024/05/28 18:20 3h04m retest repro upstream report log
2024/05/28 17:31 19m retest repro upstream report log
2024/05/27 22:41 25m retest repro upstream report log
2024/03/18 11:00 1h07m retest repro upstream error
2024/03/18 11:00 7h44m retest repro upstream error
▶ ▼ Fix bisection attempts (6)
Created Duration User Patch Repo Result
2025/03/11 08:23 7h32m bisect fix upstream OK (1) job log
2024/09/02 22:19 1h38m bisect fix upstream OK (0) job log log
2024/08/03 20:07 2h09m bisect fix upstream OK (0) job log log
2024/06/07 03:02 2h10m bisect fix upstream OK (0) job log log
2024/01/07 02:12 1h35m bisect fix upstream OK (0) job log log
2023/12/07 20:41 3h39m bisect fix upstream OK (0) job log log

Sample crash report:
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P12448/1:b..l.. P12139/1:b..l..
rcu: 	(detected by 1, t=10588 jiffies, g=75529, q=407 ncpus=2)
task:syz.3.1462      state:R  running task     stack:15848 pid:12139 tgid:12139 ppid:11398  task_flags:0xc00640 flags:0x00080001
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5583 [inline]
 __schedule+0x17dd/0x5820 kernel/sched/core.c:7382
 preempt_schedule_notrace+0x56/0x90 kernel/sched/core.c:7633
 preempt_schedule_notrace_thunk+0x16/0x30 arch/x86/entry/thunk.S:13
 rcu_is_watching+0x81/0xb0 kernel/rcu/tree.c:754
 rcu_read_lock include/linux/rcupdate.h:850 [inline]
 class_rcu_constructor include/linux/rcupdate.h:1216 [inline]
 unwind_next_frame+0xbe/0x2550 arch/x86/kernel/unwind_orc.c:495
 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 save_stack+0x122/0x230 mm/page_owner.c:183
 __set_page_owner+0x8d/0x4c0 mm/page_owner.c:359
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1856
 prep_new_page mm/page_alloc.c:1864 [inline]
 get_page_from_freelist+0x220f/0x2280 mm/page_alloc.c:3935
 __alloc_frozen_pages_noprof+0x1fe/0x410 mm/page_alloc.c:5444
 alloc_pages_mpol+0x21e/0x390 mm/mempolicy.c:2511
 folio_alloc_mpol_noprof+0x39/0x160 mm/mempolicy.c:2530
 shmem_alloc_folio mm/shmem.c:2137 [inline]
 shmem_alloc_and_add_folio+0x43e/0xf60 mm/shmem.c:2179
 shmem_get_folio_gfp+0x594/0x1330 mm/shmem.c:2732
 shmem_get_folio mm/shmem.c:2831 [inline]
 shmem_write_begin+0x16c/0x330 mm/shmem.c:3466
 generic_perform_write+0x2d5/0x8e0 mm/filemap.c:4392
 shmem_file_write_iter+0xf8/0x120 mm/shmem.c:3641
 __kernel_write_iter+0x44a/0x8f0 fs/read_write.c:621
 dump_write_iter fs/coredump.c:1358 [inline]
 dump_emit_page fs/coredump.c:1531 [inline]
 dump_user_range+0x715/0xca0 fs/coredump.c:1599
 elf_core_dump+0x346a/0x3a70 fs/binfmt_elf.c:2106
 coredump_write fs/coredump.c:1150 [inline]
 do_coredump+0x5ed1/0x6a60 fs/coredump.c:1235
 vfs_coredump+0xac3/0x10c0 fs/coredump.c:1310
 get_signal+0x108f/0x12c0 kernel/signal.c:3097
 arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:66 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:101 [inline]
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:244 [inline]
 irqentry_exit_to_user_mode include/linux/irq-entry-common.h:315 [inline]
 irqentry_exit+0x348/0x9b0 kernel/entry/common.c:152
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
RIP: 0033:0x7f551a79f561
RSP: 002b:fffffffffffffe70 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f551aa25fa0 RCX: 00007f551a79f559
RDX: 0000000000000000 RSI: fffffffffffffe70 RDI: 0000000000008000
RBP: 00007f551a836b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007f551aa26038 R14: 00007f551aa25fa0 R15: 00007ffe50ea9d68
 </TASK>
task:syz-executor    state:R  running task     stack:26312 pid:12448 tgid:12448 ppid:12437  task_flags:0x400140 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5583 [inline]
 __schedule+0x17dd/0x5820 kernel/sched/core.c:7382
 preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7662
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:543 [inline]
 irqentry_exit+0x14f/0x9b0 kernel/entry/common.c:154
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:debug_lockdep_rcu_enabled+0xf/0x40 kernel/rcu/update.c:320
Code: 48 0f b9 3a 90 eb bc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 31 c0 83 3d fb 28 9b 05 00 74 1d <83> 3d ea 56 9b 05 00 74 14 65 48 8b 0d f8 a3 bd 08 31 c0 83 b9 a4
RSP: 0018:ffffc9000e0174c8 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffffffff82822dec RCX: ffff88802e53be80
RDX: 0000000000000000 RSI: ffffffff8c8e8c60 RDI: ffffffff8c8e8c20
RBP: 0000000000000001 R08: ffffffff82822dec R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed10039d8925 R12: dffffc0000000000
R13: ffff88806f9313f8 R14: ffff88806f9313c0 R15: ffff8880345b93c0
 kernfs_root+0xe2/0x230 fs/kernfs/kernfs-internal.h:77
 kernfs_root_is_locked fs/kernfs/kernfs-internal.h:110 [inline]
 kernfs_rcu_name fs/kernfs/kernfs-internal.h:126 [inline]
 kernfs_sd_compare fs/kernfs/dir.c:368 [inline]
 kernfs_link_sibling+0xf5/0x6b0 fs/kernfs/dir.c:399
 kernfs_add_one+0x30a/0x510 fs/kernfs/dir.c:852
 __kernfs_create_file+0x22b/0x2e0 fs/kernfs/file.c:1100
 sysfs_add_file_mode_ns+0x237/0x300 fs/sysfs/file.c:316
 create_files fs/sysfs/group.c:82 [inline]
 internal_create_group+0x679/0x1180 fs/sysfs/group.c:189
 internal_create_groups fs/sysfs/group.c:229 [inline]
 sysfs_create_groups+0x59/0x120 fs/sysfs/group.c:255
 setup_gid_attrs drivers/infiniband/core/sysfs.c:1123 [inline]
 ib_setup_port_attrs+0x1780/0x2460 drivers/infiniband/core/sysfs.c:1399
 add_one_compat_dev+0x441/0x640 drivers/infiniband/core/device.c:1002
 rdma_dev_init_net+0x23e/0x2f0 drivers/infiniband/core/device.c:1227
 ops_init+0x35d/0x5d0 net/core/net_namespace.c:137
 setup_net+0x118/0x350 net/core/net_namespace.c:443
 copy_net_ns+0x536/0x770 net/core/net_namespace.c:582
 create_new_namespaces+0x3f0/0x6b0 kernel/nsproxy.c:132
 unshare_nsproxy_namespaces+0x144/0x190 kernel/nsproxy.c:234
 ksys_unshare+0x532/0x890 kernel/fork.c:3292
 __do_sys_unshare kernel/fork.c:3358 [inline]
 __se_sys_unshare kernel/fork.c:3356 [inline]
 __x64_sys_unshare+0x38/0x50 kernel/fork.c:3356
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0acdfa0827
RSP: 002b:00007ffc2a293c48 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f0ace225f40 RCX: 00007f0acdfa0827
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000
RBP: 00007f0ace2267b8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000008
R13: 0000000000000003 R14: 00007ffc2a293e88 R15: 0000000000000000
 </TASK>
rcu: rcu_preempt kthread starved for 10598 jiffies! g75529 f0x0 RCU_GP_WAIT_FQS(5) ->state=R ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:27496 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5583 [inline]
 __schedule+0x17dd/0x5820 kernel/sched/core.c:7382
 __schedule_loop kernel/sched/core.c:7459 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7474
 schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x30c/0x1230 kernel/rcu/tree.c:2122
 rcu_gp_kthread+0x9c/0x340 kernel/rcu/tree.c:2330
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 12538 Comm: syz.3.1550 Tainted: G             L       syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/15/2026
RIP: 0010:do_shrink_slab+0x5d7/0x10d0 mm/shrinker.c:445
Code: 00 00 00 e8 3b 6f ae ff 84 db 74 14 e8 f2 d1 92 ff 84 c0 0f 84 72 06 00 00 e8 95 6b ae ff eb 05 e8 8e 6b ae ff 48 8b 44 24 30 <4c> 39 f8 4c 0f 4c f8 4c 89 e7 4c 89 fe e8 47 6e ae ff 4d 39 fc 7d
RSP: 0018:ffffc90004296e20 EFLAGS: 00000246
RAX: 0000000000000400 RBX: 0000000000000001 RCX: 0000000000080000
RDX: ffffc9000f83e000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: dffffc0000000000 R08: ffffffff919d63bf R09: 1ffffffff233ac77
R10: dffffc0000000000 R11: fffffbfff233ac78 R12: 0000000000000000
R13: ffff88802b7f9500 R14: 0000000000000000 R15: 0000000000000001
FS:  00007f551b5966c0(0000) GS:ffff888123622000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f551b55d520 CR3: 0000000086269000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 shrink_slab_memcg mm/shrinker.c:569 [inline]
 shrink_slab+0x838/0x1210 mm/shrinker.c:647
 shrink_node_memcgs mm/vmscan.c:6440 [inline]
 shrink_node+0x3134/0x6c50 mm/vmscan.c:6482
 shrink_zones mm/vmscan.c:6701 [inline]
 do_try_to_free_pages+0x670/0x1690 mm/vmscan.c:6763
 try_to_free_mem_cgroup_pages+0x30d/0x830 mm/vmscan.c:7044
 try_charge_memcg+0x8c6/0x15e0 mm/memcontrol.c:2773
 try_charge mm/memcontrol.c:2921 [inline]
 obj_cgroup_charge_pages mm/memcontrol.c:3222 [inline]
 __obj_cgroup_charge+0x20a/0x2d0 mm/memcontrol.c:3600
 __memcg_slab_post_alloc_hook+0x772/0xdb0 mm/memcontrol.c:3730
 memcg_slab_post_alloc_hook mm/slub.c:2549 [inline]
 slab_post_alloc_hook mm/slub.c:4739 [inline]
 slab_alloc_node mm/slub.c:5033 [inline]
 __do_kmalloc_node mm/slub.c:5530 [inline]
 __kvmalloc_node_noprof+0x5ec/0x820 mm/slub.c:7136
 io_alloc_hash_table io_uring/io_uring.c:201 [inline]
 io_ring_ctx_alloc+0x1ad/0xb80 io_uring/io_uring.c:246
 io_uring_create+0x50/0x980 io_uring/io_uring.c:3211
 io_uring_setup io_uring/io_uring.c:3346 [inline]
 __do_sys_io_uring_setup io_uring/io_uring.c:3380 [inline]
 __se_sys_io_uring_setup+0x2a8/0x2c0 io_uring/io_uring.c:3371
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f551a79f559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f551b595fb8 EFLAGS: 00000206 ORIG_RAX: 00000000000001a9
RAX: ffffffffffffffda RBX: 00002000000196c0 RCX: 00007f551a79f559
RDX: 0000200000019780 RSI: 00002000000196c0 RDI: 0000000000000020
RBP: 00007f551a836b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000200000019780
R13: 0000000000000000 R14: 0000200000019740 R15: 00007ffe50ea9d68
 </TASK>

Crashes (191):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/10/28 20:52 upstream 65ba8f34ec88 858db2ec .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sys_unshare
2026/10/16 05:41 upstream 2f2f7eeef8b0 3f2522c6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_unshare
2026/09/23 03:44 upstream c4e9f74da438 3e2106e5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in sys_unshare
2026/09/19 16:49 upstream 40288c9206c1 853b104b .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in sys_unshare
2026/08/25 08:36 upstream 66498c75b4f8 23caa175 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in sys_unshare
2026/08/11 16:16 upstream d58772d8520c 557a89d3 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in sys_unshare
2026/08/02 01:16 upstream 2d2338c93da7 e611ffe1 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in sys_unshare
2026/07/31 21:08 upstream 8ba098e6b6ff db462e94 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in sys_unshare
2026/07/29 17:35 upstream fc02acf6ac0c 4a865b71 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in sys_unshare
2026/07/26 11:33 upstream 3dab139d4795 4a865b71 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in sys_unshare
2026/07/25 02:15 upstream 48a5a7ab8d6a 4a865b71 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in sys_unshare
2026/07/17 02:51 upstream 37e2f878a7a6 8f30cfd7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in sys_unshare
2026/07/01 00:08 upstream dc59e4fea9d8 00e8b0fd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in sys_unshare
2026/06/09 00:26 upstream 4549871118cf 656e94c6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_unshare
2026/06/08 17:40 upstream 4549871118cf 656e94c6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in sys_unshare
2026/06/05 20:22 upstream ddd664bbff63 48b6c3fa .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_unshare
2026/05/29 11:55 upstream 8fde5d1d47f6 4624854e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in sys_unshare
2026/05/20 02:06 upstream 27fa82620cba 0909d65f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in sys_unshare
2026/05/18 10:22 upstream 5200f5f493f7 55156e84 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_unshare
2025/06/30 15:31 upstream d0b3b7b22dfa fc9d8ee5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_unshare
2024/03/04 02:30 upstream 58c806d867bf 25905f5d .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_unshare
2024/02/27 21:09 upstream 45ec2f5f6ed3 05e69c83 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sys_unshare
2023/11/07 00:07 upstream d2f51b3516da 78fae24e .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sys_unshare
2026/08/10 05:43 upstream b9b3e33b70b7 5d63f80b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: rcu detected stall in sys_unshare
2026/06/06 15:55 upstream c10130c234c8 cc095639 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: rcu detected stall in sys_unshare
2026/10/17 15:34 net 00accbd9d502 432c0077 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in sys_unshare
2026/10/10 16:16 net af32da41b032 4f92358f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in sys_unshare
2026/09/22 04:52 net 12fec40907fa e12281bd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in sys_unshare
2026/09/14 21:21 net e6b6078ea173 924033e8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in sys_unshare
2026/09/04 09:16 net adf50c47a47f 801f0966 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in sys_unshare
2026/08/28 01:39 net 81eb1867e059 e2fa417d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in sys_unshare
2026/07/30 12:13 net 54ad7ea45d63 2377cd3d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in sys_unshare
2026/07/30 03:34 net 3bd438a58e91 cb1587ea .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in sys_unshare
2026/07/18 06:11 net 56d96fededd6 72524a66 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in sys_unshare
2026/07/08 00:39 net 60444706aa17 88a4b44c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in sys_unshare
2026/07/05 09:28 net 660667cd4066 fcece630 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in sys_unshare
2026/06/19 11:24 net 5c121ee63568 d7ffd47b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in sys_unshare
2026/05/26 13:55 net f229426072fc a3e47276 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in sys_unshare
2026/05/22 16:05 net 68993ced0f61 e16cf9f3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in sys_unshare
2026/05/21 23:18 net 0377bd2722c1 e195359d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in sys_unshare
2026/10/27 00:05 net-next 734bef548a96 168cb7a2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in sys_unshare
2026/10/04 19:56 net-next cfb7793d1bc0 57bbd979 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in sys_unshare
2026/09/16 03:09 net-next b8e9e7d82e7e 12a0a44a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in sys_unshare
2026/09/02 21:06 net-next c29b37ed7a4d 85995287 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in sys_unshare
2026/08/09 03:05 net-next 001b5d347d8b 5d63f80b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in sys_unshare
2026/08/01 19:24 net-next 69963a0678a3 e611ffe1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in sys_unshare
2026/07/22 21:22 net-next 24d0af194bcc 881ce5c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in sys_unshare
2026/07/13 05:29 net-next f6f3b36c15ed d78ea535 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in sys_unshare
2026/07/10 13:39 net-next b470fde8f77b 99e64375 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in sys_unshare
2026/06/22 19:58 net-next b85966adbf5d 5a630be6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in sys_unshare
2026/06/20 07:25 net-next b85966adbf5d 43bfcdb0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in sys_unshare
2026/06/07 03:21 net-next 903db046d557 cc095639 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in sys_unshare
2026/06/01 17:26 net-next c2c0486c5680 8d8eeb3a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in sys_unshare
2026/08/11 14:56 linux-next 3d08ff75a47a 37a258dd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in sys_unshare
2025/10/02 15:36 linux-next 3b9b1f8df454 49379ee0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce INFO: rcu detected stall in sys_unshare
* Struck through repros no longer work on HEAD.