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INFO: rcu detected stall in hub_event (2)

Status: upstream: reported C repro on 2025/08/21 02:14
Subsystems: usb
[Documentation on labels]
Reported-by: syzbot+039eab266c6321a174bd@syzkaller.appspotmail.com
First crash: 377d, last: 2d04h
▶ ▼ ✨ AI Jobs (1)
ID Workflow Result Correct Bug Created Started Finished Revision Error
ec1cc35e-251e-49ba-afe7-bc3d13a1146f assessment-security 💥 INFO: rcu detected stall in hub_event (2) 2026/05/14 07:35 2026/05/14 07:35 2026/05/14 07:43 6ccb967e465e832a7bfd7a116ad00d52a0923a5d failed to run ["make" "KERNELVERSION=syzkaller" "KERNELRELEASE=syzkaller" "LOCALVERSION=-syzkaller" "-j" "32" "ARCH=x86_64" "CC=ccache clang" "LD=ld.lld" "O=/app/workdir/cache/build/a2f70931edc1c7485560623acb0e723e7bd21f58" "-s" "bzImage" "compile_commands.json"]: exit status 2 * * Restart config... * * * General architecture-dependent options * SMT (Hyperthreading) scheduler support (SCHED_SMT) [Y/?] y Cluster scheduler support (SCHED_CLUSTER) [Y/n/?] y Multi-Core Cache (MC) scheduler support (SCHED_MC) [Y/n/?] y Kprobes (KPROBES) [N/y/?] n Optimize very unlikely/likely branches (JUMP_LABEL) [Y/n/?] y Static key selftest (STATIC_KEYS_SELFTEST) [N/y/?] n Static call selftest (STATIC_CALL_SELFTEST) [N/y/?] n Enable seccomp to safely execute untrusted bytecode (SECCOMP) [Y/n/?] y Show seccomp filter cache status in /proc/pid/seccomp_cache (SECCOMP_CACHE_DEBUG) [N/y/?] n Stack Protector buffer overflow detection (STACKPROTECTOR) [Y/n/?] y Strong Stack Protector (STACKPROTECTOR_STRONG) [Y/n/?] y Link Time Optimization (LTO) > 1. None (LTO_NONE) choice[1]: 1 Enable Clang's AutoFDO build (EXPERIMENTAL) (AUTOFDO_CLANG) [N/y/?] (NEW) Error in reading or end of file. Enable Clang's Propeller build (PROPELLER_CLANG) [N/y/?] (NEW) Error in reading or end of file. Use Kernel Control Flow Integrity (kCFI) (CFI) [N/y/?] (NEW) Error in reading or end of file. Number of bits to use for ASLR of mmap base address (ARCH_MMAP_RND_BITS) [28] 28 Number of bits to use for ASLR of mmap base address for compatible applications (ARCH_MMAP_RND_COMPAT_BITS) [8] 8 MMU page size > 1. 4KiB pages (PAGE_SIZE_4KB) choice[1]: 1 Provide system calls for 32-bit time_t (COMPAT_32BIT_TIME) [Y/n/?] y Use a virtually-mapped stack (VMAP_STACK) [Y/n/?] y Support for randomizing kernel stack offset on syscall entry (RANDOMIZE_KSTACK_OFFSET) [Y/n/?] y Default state of kernel stack offset randomization (RANDOMIZE_KSTACK_OFFSET_DEFAULT) [N/y/?] n Locking event counts collection (LOCK_EVENT_COUNTS) [N/y/?] n * * Memory initialization * Initialize kernel stack variables at function entry 1. no automatic stack variable initialization (weakest) (INIT_STACK_NONE) 2. pattern-init everything (strongest) (INIT_STACK_ALL_PATTERN) > 3. zero-init everything (strongest and safest) (INIT_STACK_ALL_ZERO) choice[1-3?]: 3 Poison kernel stack before returning from syscalls (KSTACK_ERASE) [N/y/?] (NEW) Error in reading or end of file. Enable heap memory zeroing on allocation by default (INIT_ON_ALLOC_DEFAULT_ON) [Y/n/?] y Enable heap memory zeroing on free by default (INIT_ON_FREE_DEFAULT_ON) [N/y/?] n Enable register zeroing on function exit (ZERO_CALL_USED_REGS) [N/y/?] n * * Kernel hardening options * Randomize layout of sensitive kernel structures > 1. Disable structure layout randomization (RANDSTRUCT_NONE) 2. Fully randomize structure layout (RANDSTRUCT_FULL) (NEW) choice[1-2?]: Error in reading or end of file. /app/workdir/cache/src/62fc2a966030a6074e79286d0adc989fd1b46d15/sound/usb/mixer_s1810c.c:633:5: warning: stack frame size (2360) exceeds limit (2048) in 'snd_sc1810_init_mixer' [-Wframe-larger-than] 633 | int snd_sc1810_init_mixer(struct usb_mixer_interface *mixer) | ^ 1 warning generated. /app/workdir/cache/src/62fc2a966030a6074e79286d0adc989fd1b46d15/crypto/ecc.c:1120:13: warning: stack frame size (2200) exceeds limit (2048) in 'ecc_point_double_jacobian' [-Wframe-larger-than] 1120 | static void ecc_point_double_jacobian(u64 *x1, u64 *y1, u64 *z1, | ^ /app/workdir/cache/src/62fc2a966030a6074e79286d0adc989fd1b46d15/crypto/ecc.c:1265:13: warning: stack frame size (2296) exceeds limit (2048) in 'xycz_add_c' [-Wframe-larger-than] 1265 | static void xycz_add_c(u64 *x1, u64 *y1, u64 *x2, u64 *y2, | ^ 2 warnings generated. /app/workdir/cache/src/62fc2a966030a6074e79286d0adc989fd1b46d15/net/ethtool/cmis_fw_update.c:432:1: warning: stack frame size (2392) exceeds limit (2048) in 'ethtool_cmis_fw_update' [-Wframe-larger-than] 432 | ethtool_cmis_fw_update(struct ethtool_cmis_fw_update_params *fw_update)
Cause bisection: failed (error log, bisect log)
  
▶ ▼ Discussions (3)
Title Replies (including bot) Last reply
[syzbot] Monthly kernfs report (Mar 2026) 0 (1) 2026/03/31 08:06
[syzbot] Monthly kernfs report (Oct 2025) 0 (1) 2025/10/24 18:48
[syzbot] [mm?] INFO: rcu detected stall in hub_event (2) 0 (3) 2025/09/17 17:52
▶ ▼ Similar bugs (6)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 INFO: rcu detected stall in hub_event 1 2 557d 643d 0/3 auto-obsoleted due to no activity on 2025/02/15 14:48
upstream INFO: rcu detected stall in hub_event usb 1 C done 1233 377d 2370d 28/29 fixed on 2025/05/06 15:33
linux-6.1 INFO: rcu detected stall in hub_event origin:lts-only 1 C inconclusive 6 362d 1010d 0/3 upstream: reported C repro on 2023/08/12 16:34
android-5-15 BUG: soft lockup in hub_event 1 12 691d 762d 0/2 auto-obsoleted due to no activity on 2024/09/23 11:46
android-54 BUG: soft lockup in hub_event 1 C 1 981d 981d 0/2 auto-obsoleted due to no activity on 2024/02/11 21:05
android-6-1 BUG: soft lockup in hub_event 1 1 1069d 1069d 0/2 auto-obsoleted due to no activity on 2023/09/12 05:32
▶ ▼ Last patch testing requests (3)
Created Duration User Patch Repo Result
2025/10/14 21:09 22m retest repro upstream OK log
2025/10/14 21:09 24m retest repro upstream OK log
2025/10/14 21:09 22m retest repro upstream report log

Sample crash report:
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1):
 P3032/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=42045, q=380374 ncpus=2)
task:kworker/1:2     state:R  running task    
 stack:23640 pid:3032  tgid:3032  ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5298 [inline]
 __schedule+0xeb1/0x4220 kernel/sched/core.c:6911
 preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7238
 irqentry_exit+0x15a/0x620 kernel/entry/common.c:239
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:lock_acquire+0x5e/0x380 kernel/locking/lockdep.c:5872
Code: 05 3b 44 66 0b 83 f8 07 0f 87 f0 00 00 00 48 0f a3 05 c6 20 61 09 0f 82 c2 02 00 00 8b 35 6e 30 61 09 85 f6 0f 85 dd 00 00 00 <48> 8b 44 24 30 65 48 2b 05 dd 43 66 0b 0f 85 02 03 00 00 48 83 c4
RSP: 0018:ffffc9000191e998 EFLAGS: 00000206
RAX: 0000000000000046 RBX: 0000000000000000 RCX: 0000000000000006
RDX: 0000000000000000 RSI: ffffffff890010b3 RDI: ffffffff87afc6a0
RBP: ffffffff896de6e0 R08: 0000000055b0517e R09: 0000000000000007
R10: 0000000000000200 R11: 0000000000000000 R12: 0000000000000002
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 rcu_read_lock include/linux/rcupdate.h:850 [inline]
 class_rcu_constructor include/linux/rcupdate.h:1193 [inline]
 unwind_next_frame+0xd1/0x1ea0 arch/x86/kernel/unwind_orc.c:495
 arch_stack_walk+0x94/0xf0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0x8f/0xa0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __do_kmalloc_node mm/slub.c:5260 [inline]
 __kmalloc_noprof+0x302/0x810 mm/slub.c:5272
 kmalloc_noprof include/linux/slab.h:954 [inline]
 kobj_map+0x80/0x4b0 drivers/base/map.c:44
 cdev_add+0xa7/0x1a0 fs/char_dev.c:488
 cdev_device_add+0x10f/0x270 fs/char_dev.c:548
 evdev_connect+0x3a8/0x4b0 drivers/input/evdev.c:1383
 input_attach_handler.isra.0+0x177/0x1e0 drivers/input/input.c:994
 input_register_device.cold+0x139/0x375 drivers/input/input.c:2378
 usb_probe+0x1226/0x17c0 drivers/input/misc/yealink.c:928
 usb_probe_interface+0x303/0x8f0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:583 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:661
 __driver_probe_device+0x1de/0x400 drivers/base/dd.c:803
 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:833
 __device_attach_driver+0x1df/0x340 drivers/base/dd.c:961
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1033
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1088
 bus_probe_device+0x64/0x160 drivers/base/bus.c:574
 device_add+0x11d9/0x1950 drivers/base/core.c:3689
 usb_set_configuration+0xd97/0x1c60 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0xa1/0xe0 drivers/usb/core/generic.c:250
 usb_probe_device+0xef/0x400 drivers/usb/core/driver.c:291
 call_driver_probe drivers/base/dd.c:583 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:661
 __driver_probe_device+0x1de/0x400 drivers/base/dd.c:803
 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:833
 __device_attach_driver+0x1df/0x340 drivers/base/dd.c:961
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1033
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1088
 bus_probe_device+0x64/0x160 drivers/base/bus.c:574
 device_add+0x11d9/0x1950 drivers/base/core.c:3689
 usb_new_device.cold+0x685/0x115c drivers/usb/core/hub.c:2695
 hub_port_connect drivers/usb/core/hub.c:5567 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5707 [inline]
 port_event drivers/usb/core/hub.c:5871 [inline]
 hub_event+0x314d/0x4af0 drivers/usb/core/hub.c:5953
 process_one_work+0xa23/0x19a0 kernel/workqueue.c:3276
 process_scheduled_works kernel/workqueue.c:3359 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3440
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x6c3/0xcb0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Crashes (503):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/03/29 03:34 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 84db3719d273 b5ceaad2 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/03/28 18:37 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 84db3719d273 b5ceaad2 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/04/12 19:55 upstream f5459048c38a 38c8e246 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in hub_event
2026/02/12 14:33 upstream c22e26bd0906 76a109e2 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in hub_event
2026/01/13 17:34 upstream b71e635feefc d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in hub_event
2025/09/06 03:05 upstream c8ed9b5c02a5 d291dd2d .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in hub_event
2026/05/13 18:04 upstream 1d5dcaa3bd65 fec2a7ee .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in hub_event
2026/05/11 15:18 upstream 5d6919055dec e6eb7c0b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in hub_event
2026/05/05 05:18 upstream c7e4e4d5f7dc a898ba9c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in hub_event
2026/04/27 02:55 upstream 20b64cf8705a 9c2d0995 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in hub_event
2026/04/26 09:54 upstream 897d54018cc9 9c2d0995 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in hub_event
2026/04/21 20:17 upstream 4ee64205ffaa 0b6ab7ec .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in hub_event
2026/04/17 10:38 upstream 3cd8b194bf34 de0a551d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in hub_event
2026/04/14 22:16 upstream d60bc1401583 362d1323 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in hub_event
2026/03/22 05:51 upstream 113ae7b4decc 5b92003d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in hub_event
2025/09/17 17:51 upstream 5aca7966d2a7 e2beed91 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in hub_event
2025/09/07 22:48 upstream 6ab41fca2e80 d291dd2d .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in hub_event
2025/08/17 02:03 upstream 90d970cade8e 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in hub_event
2025/08/11 23:28 upstream 8f5ae30d69d7 32a0e5ed .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in hub_event
2026/05/17 00:45 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing e18b0dbb6ec6 de5aae85 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/05/15 18:18 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing e18b0dbb6ec6 9cd3beaa .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/05/14 17:26 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing e18b0dbb6ec6 6ccb967e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/05/14 04:36 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing e18b0dbb6ec6 6ccb967e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/05/10 05:36 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 25bd55f46032 29233ece .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/05/09 20:40 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 25bd55f46032 29233ece .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/05/09 03:12 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 25bd55f46032 29233ece .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/05/07 23:28 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 25bd55f46032 cbf9e0fc .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/05/07 01:48 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 25bd55f46032 f250db59 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/05/06 16:06 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 25bd55f46032 1dddfd3d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/05/05 20:47 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 25bd55f46032 06e69a27 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/05/05 02:04 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 25bd55f46032 a898ba9c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/05/03 22:18 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 25bd55f46032 a0d91488 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/05/03 09:49 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 25bd55f46032 a0d91488 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/05/02 21:39 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 25bd55f46032 a0d91488 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/04/30 09:58 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 25bd55f46032 005438fc .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/04/29 09:22 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 25bd55f46032 7ca9e4d8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/04/29 06:34 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 25bd55f46032 95008c03 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/04/23 17:29 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 2e6803928193 4c3406dc .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/04/23 00:10 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 6596a02b2078 b10da5ec .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/04/22 01:06 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing c1f49dea2b8f 0b6ab7ec .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/04/19 13:58 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 87117347a0e7 303e2802 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/04/18 17:34 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 87117347a0e7 303e2802 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/04/16 21:25 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 87117347a0e7 4743f87d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/04/15 23:26 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 87117347a0e7 df15c5f3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/04/12 10:57 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 87117347a0e7 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/04/10 23:04 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing cd1be4b2c639 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/04/10 04:39 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8f993d30b95d 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/04/07 22:51 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8f993d30b95d 2c961e87 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/04/05 19:02 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 1df7a7652f03 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/04/04 19:31 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 1df7a7652f03 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/04/03 21:34 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 1df7a7652f03 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/03/28 18:28 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 84db3719d273 b5ceaad2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/03/26 01:44 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 84db3719d273 c6143aac .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/03/22 13:48 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 84db3719d273 5b92003d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/03/21 11:17 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 84db3719d273 5b92003d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb INFO: rcu detected stall in hub_event
2026/03/21 09:19 linux-next 785f0eb2f85d 5b92003d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce INFO: rcu detected stall in hub_event
2026/01/07 01:29 linux-next 6cd6c1203113 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in hub_event
2026/02/17 21:31 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing da87d45b1951 06ec4f7b .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb BUG: soft lockup in hub_event
* Struck through repros no longer work on HEAD.