syzbot

 sign-in | mailing list | source | docs
🐞 Open [1592]
≡ Subsystems
🐞 Fixed [6233]
🐞 Invalid [15779]
⬇ Missing Backports [183]
≡ Crashes
Kernel Health Bugs/Month Bug Lifetimes Fuzzing
Total Repo Heatmap Subsystems Heatmap
💬 Send us feedback

kernel panic: System is deadlocked on memory (2)

Status: upstream: reported on 2024/08/12 10:54
Subsystems: mm
[Documentation on labels]
Reported-by: syzbot+c61d6962d0b7e698439e@syzkaller.appspotmail.com
First crash: 311d, last: 9d01h
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [mm?] kernel panic: System is deadlocked on memory (2) 0 (1) 2024/08/12 10:54
▶ ▼ Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel panic: System is deadlocked on memory mm C done 43 1768d 1767d 15/28 fixed on 2020/11/16 12:12

Sample crash report:
task_struct             4322KB       5029KB
cred                     164KB        360KB
anon_vma_chain            96KB        145KB
anon_vma                 127KB        247KB
pid                      204KB        448KB
Acpi-Operand             268KB        384KB
Acpi-ParseExt             66KB         86KB
Acpi-Parse                43KB         83KB
Acpi-State                82KB        118KB
Acpi-Namespace            56KB         56KB
numa_policy               11KB         11KB
perf_event                30KB         30KB
trace_event_file         544KB        544KB
ftrace_event_field       1000KB       1000KB
pool_workqueue          1995KB       2000KB
maple_node               439KB       1088KB
task_group                46KB         46KB
mm_struct                365KB        510KB
vmap_area                312KB        974KB
debug_objects_cache       2446KB       2818KB
page->ptl                 95KB        110KB
kmalloc-cg-8k           4784KB       4784KB
kmalloc-cg-4k          16288KB      17696KB
kmalloc-cg-2k          11352KB      12352KB
kmalloc-cg-1k           2606KB       3008KB
kmalloc-cg-512          1079KB       1424KB
kmalloc-cg-256           557KB        584KB
kmalloc-cg-128           264KB        296KB
kmalloc-cg-64             83KB        108KB
kmalloc-cg-32             73KB        188KB
kmalloc-cg-16             17KB         24KB
kmalloc-cg-8              32KB         32KB
kmalloc-cg-192            64KB         64KB
kmalloc-cg-96             36KB         36KB
kmalloc-8k              5488KB       6112KB
kmalloc-4k             29864KB      29928KB
kmalloc-2k             12176KB      13600KB
kmalloc-1k             10974KB      11588KB
kmalloc-512             8875KB       9504KB
kmalloc-256            10091KB      10108KB
kmalloc-128             1007KB       1164KB
kmalloc-64              3300KB       3640KB
kmalloc-32              2046KB       2636KB
kmalloc-16               514KB        532KB
kmalloc-8                566KB        640KB
kmalloc-192             1703KB       1944KB
kmalloc-96              1197KB       1296KB
kmem_cache_node          215KB        216KB
kmem_cache               187KB        187KB
Out of memory and no killable processes...
Kernel panic - not syncing: System is deadlocked on memory
CPU: 3 UID: 0 PID: 835 Comm: kworker/3:2 Not tainted 6.15.0-rc5-syzkaller-00038-g707df3375124 #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: events p9_poll_workfn
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x3d/0x1f0 lib/dump_stack.c:120
 panic+0x71c/0x800 kernel/panic.c:354
 out_of_memory+0x16e4/0x1700 mm/oom_kill.c:1175
 __alloc_pages_may_oom mm/page_alloc.c:3855 [inline]
 __alloc_pages_slowpath mm/page_alloc.c:4657 [inline]
 __alloc_frozen_pages_noprof+0x1c74/0x23a0 mm/page_alloc.c:4983
 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2301
 alloc_frozen_pages_noprof mm/mempolicy.c:2372 [inline]
 alloc_pages_noprof+0x131/0x390 mm/mempolicy.c:2392
 vm_area_alloc_pages mm/vmalloc.c:3591 [inline]
 __vmalloc_area_node mm/vmalloc.c:3669 [inline]
 __vmalloc_node_range_noprof+0x732/0x1540 mm/vmalloc.c:3844
 vmalloc_user_noprof+0x6b/0x90 mm/vmalloc.c:3996
 vb2_vmalloc_alloc+0x135/0x3f0 drivers/media/common/videobuf2/videobuf2-vmalloc.c:47
 __vb2_buf_mem_alloc drivers/media/common/videobuf2/videobuf2-core.c:242 [inline]
 __vb2_queue_alloc+0x8c6/0x1280 drivers/media/common/videobuf2/videobuf2-core.c:523
 vb2_core_reqbufs+0xa90/0xfe0 drivers/media/common/videobuf2/videobuf2-core.c:964
 __vb2_init_fileio+0x3f1/0x1100 drivers/media/common/videobuf2/videobuf2-core.c:2895
 vb2_core_poll+0x5ec/0x700 drivers/media/common/videobuf2/videobuf2-core.c:2729
 vb2_poll+0x33/0x150 drivers/media/common/videobuf2/videobuf2-v4l2.c:980
 vb2_fop_poll+0x10f/0x2c0 drivers/media/common/videobuf2/videobuf2-v4l2.c:1245
 v4l2_poll+0x160/0x320 drivers/media/v4l2-core/v4l2-dev.c:350
 vfs_poll include/linux/poll.h:82 [inline]
 p9_fd_poll+0x10e/0x2c0 net/9p/trans_fd.c:238
 p9_poll_mux net/9p/trans_fd.c:630 [inline]
 p9_poll_workfn+0x209/0x4e0 net/9p/trans_fd.c:1172
 process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
 kthread+0x3c2/0x780 kernel/kthread.c:464
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (29):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/05/08 03:27 upstream 707df3375124 dbf35fa1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/05/07 07:46 upstream 0d8d44db295c 350f4ffc .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/04/20 09:13 upstream 119009db2674 2a20f901 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/04/17 17:38 upstream cfb2e2c57aef 552876f8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/03/24 17:22 upstream 38fec10eb60d 875573af .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/03/07 19:17 upstream 00a7d39898c8 7e3bd60d .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/03/07 16:11 upstream 00a7d39898c8 7e3bd60d .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/02/27 04:39 upstream 5394eea10651 6a8fcbc4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/02/25 00:31 upstream d082ecbc71e9 d34966d1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/02/01 21:22 upstream 69e858e0b8b2 0dff8567 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/01/03 09:16 upstream 0bc21e701a6f d3ccff63 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/12/15 03:53 upstream a0e3919a2df2 7cbfbb3a .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/12/04 07:37 upstream ceb8bf2ceaa7 b50eb251 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/10/16 21:43 upstream c964ced77262 666f77ed .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/10/12 01:41 upstream 9e4c6c1ad9a1 084d8178 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/09/16 18:08 upstream 114143a59589 49cf0773 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/08/26 07:00 upstream 5be63fc19fca d7d32352 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/08/26 06:39 upstream 5be63fc19fca d7d32352 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/08/26 06:38 upstream 5be63fc19fca d7d32352 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/08/25 13:05 upstream 780bdc1ba776 d7d32352 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/08/25 12:58 upstream 780bdc1ba776 d7d32352 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/08/24 23:38 upstream d2bafcf224f3 d7d32352 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/08/23 08:47 upstream aa0743a22936 ce8a9099 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm64-mte kernel panic: System is deadlocked on memory
2024/08/21 10:49 upstream b311c1b497e5 db5852f9 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/08/12 10:53 upstream 7c626ce4bae1 1fef415f .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/08/03 16:17 upstream 17712b7ea075 1786a2a8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm64-mte kernel panic: System is deadlocked on memory
2024/07/29 00:20 upstream 5437f30d3458 46eb10b7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/07/19 05:11 upstream 720261cfc732 ee4e11c8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/07/09 15:24 upstream 4376e966ecb7 39158d80 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
* Struck through repros no longer work on HEAD.