cred                     153KB        296KB
anon_vma_chain           123KB        204KB
anon_vma                 155KB        294KB
pid                      243KB        441KB
Acpi-Operand             247KB        360KB
Acpi-ParseExt             55KB         90KB
Acpi-Parse               102KB        141KB
Acpi-State                55KB         90KB
Acpi-Namespace            56KB         56KB
shared_policy_node         16KB         16KB
numa_policy               15KB         15KB
perf_event                94KB         94KB
trace_event_file         532KB        532KB
ftrace_event_field       1004KB       1004KB
pool_workqueue          1920KB       1984KB
task_group                61KB         61KB
maple_node               538KB       1320KB
mm_struct                413KB        643KB
vmap_area                341KB       1148KB
debug_objects_cache       2211KB       2602KB
page->ptl                 73KB        122KB
kmalloc-cg-8k           1728KB       1888KB
kmalloc-cg-4k          12248KB      13760KB
kmalloc-cg-2k           8272KB       9824KB
kmalloc-cg-1k           2354KB       2944KB
kmalloc-cg-512          1041KB       1440KB
kmalloc-cg-256           396KB        472KB
kmalloc-cg-128           237KB        268KB
kmalloc-cg-64             70KB        120KB
kmalloc-cg-32             72KB        148KB
kmalloc-cg-16             17KB         28KB
kmalloc-cg-8              36KB         36KB
kmalloc-cg-192            77KB        100KB
kmalloc-cg-96             68KB         92KB
kmalloc-8k              6400KB       6816KB
kmalloc-4k             42352KB      42400KB
kmalloc-2k             12416KB      13792KB
kmalloc-1k              9594KB       9780KB
kmalloc-512             9511KB       9712KB
kmalloc-256             4311KB       4324KB
kmalloc-128             1387KB       1664KB
kmalloc-64              5386KB       6788KB
kmalloc-32              1530KB       2108KB
kmalloc-16               444KB        460KB
kmalloc-8                401KB        504KB
kmalloc-192             1580KB       1892KB
kmalloc-96              2625KB       3360KB
kmem_cache_node          220KB        224KB
kmem_cache               187KB        187KB
Out of memory and no killable processes...
Kernel panic - not syncing: System is deadlocked on memory
CPU: 1 UID: 0 PID: 9777 Comm: kworker/1:4 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Workqueue: events ovs_dp_masks_rebalance
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 vpanic+0x20d/0x630 kernel/panic.c:490
 panic+0xd1/0xd1 kernel/panic.c:627
 out_of_memory.cold+0xa2/0x170 mm/oom_kill.c:1182
 __alloc_pages_may_oom mm/page_alloc.c:4122 [inline]
 __alloc_pages_slowpath mm/page_alloc.c:4927 [inline]
 __alloc_frozen_pages_noprof+0x1d30/0x2410 mm/page_alloc.c:5253
 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2486
 alloc_slab_page mm/slub.c:3075 [inline]
 allocate_slab mm/slub.c:3256 [inline]
 new_slab+0x2e2/0x440 mm/slub.c:3302
 ___slab_alloc+0xda3/0x1ca0 mm/slub.c:4656
 __slab_alloc.isra.0+0x63/0x110 mm/slub.c:4779
 __slab_alloc_node mm/slub.c:4855 [inline]
 slab_alloc_node mm/slub.c:5251 [inline]
 __do_kmalloc_node mm/slub.c:5656 [inline]
 __kmalloc_noprof+0x618/0x9c0 mm/slub.c:5669
 kmalloc_noprof include/linux/slab.h:961 [inline]
 kmalloc_array_noprof include/linux/slab.h:1003 [inline]
 ovs_flow_masks_rebalance+0xd9/0x9f0 net/openvswitch/flow_table.c:1113
 ovs_dp_masks_rebalance+0x64/0xf0 net/openvswitch/datapath.c:2564
 process_one_work+0x9c2/0x1840 kernel/workqueue.c:3257
 process_scheduled_works kernel/workqueue.c:3340 [inline]
 worker_thread+0x5da/0xe40 kernel/workqueue.c:3421
 kthread+0x3b3/0x730 kernel/kthread.c:463
 ret_from_fork+0x754/0xaf0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..