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INFO: rcu detected stall in sendmsg (4)

Status: upstream: reported C repro on 2024/05/24 06:18
Subsystems: net input usb
[Documentation on labels]
Reported-by: syzbot+9c0539eda655673bdaa4@syzkaller.appspotmail.com
First crash: 122d, last: 10d
Cause bisection: failed (error log, bisect log)
  
▶ ▼ Discussions (3)
Title Replies (including bot) Last reply
[syzbot] Monthly input report (Sep 2024) 0 (1) 2024/09/02 08:17
[syzbot] Monthly input report (Jul 2024) 0 (1) 2024/07/01 10:27
[syzbot] [net?] [input?] [usb?] INFO: rcu detected stall in sendmsg (4) 0 (1) 2024/05/24 06:18
▶ ▼ Similar bugs (6)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 INFO: rcu detected stall in sendmsg (3) 2 19d 48d 0/3 upstream: reported on 2024/07/26 13:03
upstream INFO: rcu detected stall in sendmsg net 1 1072d 1072d 0/27 auto-closed as invalid on 2022/01/03 17:11
linux-6.1 INFO: rcu detected stall in sendmsg (2) 1 170d 170d 0/3 auto-obsoleted due to no activity on 2024/07/04 03:49
upstream INFO: rcu detected stall in sendmsg (2) batman 1 943d 943d 0/27 auto-closed as invalid on 2022/05/13 12:25
upstream INFO: rcu detected stall in sendmsg (3) net 4 219d 304d 0/27 auto-obsoleted due to no activity on 2024/05/05 18:15
linux-6.1 INFO: rcu detected stall in sendmsg 1 404d 404d 0/3 auto-obsoleted due to no activity on 2023/11/12 19:28
▶ ▼ Last patch testing requests (1)
Created Duration User Patch Repo Result
2024/06/03 07:25 23m retest repro upstream OK log

Sample crash report:
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (7 ticks this GP) idle=5024/1/0x4000000000000000 softirq=8175/8175 fqs=0
rcu: 	(t=11029 jiffies g=8665 q=111 ncpus=2)
rcu: rcu_preempt kthread starved for 11029 jiffies! g8665 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:28752 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0xf15/0x5d00 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6837
 schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2581
 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2000
 rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2202
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
CPU: 0 PID: 4533 Comm: udevd Not tainted 6.9.0-syzkaller-09429-g61307b7be41a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:194
Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 16 10 82 f6 48 89 df e8 fe 8c 82 f6 f7 c5 00 02 00 00 75 23 9c 58 f6 c4 02 75 37 <bf> 01 00 00 00 e8 75 cd 73 f6 65 8b 05 06 1b 1a 75 85 c0 74 16 5b
RSP: 0018:ffffc90000007a48 EFLAGS: 00000246
RAX: 0000000000000002 RBX: ffff888023414000 RCX: 1ffffffff285644e
RDX: 0000000000000000 RSI: ffffffff8b2cab60 RDI: ffffffff8b8faa00
RBP: 0000000000000246 R08: 0000000000000001 R09: fffffbfff284be6a
R10: ffffffff9425f357 R11: 0000000000000003 R12: ffff8880243de478
R13: ffff8880243de480 R14: dffffc0000000000 R15: ffff8880243de478
FS:  00007f58b93bdc80(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f58b9410d80 CR3: 000000007cfb8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 dummy_timer+0x1e16/0x3940 drivers/usb/gadget/udc/dummy_hcd.c:2001
 call_timer_fn+0x1a0/0x610 kernel/time/timer.c:1792
 expire_timers kernel/time/timer.c:1843 [inline]
 __run_timers+0x74b/0xaf0 kernel/time/timer.c:2417
 __run_timer_base kernel/time/timer.c:2428 [inline]
 __run_timer_base kernel/time/timer.c:2421 [inline]
 run_timer_base+0x111/0x190 kernel/time/timer.c:2437
 run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2447
 handle_softirqs+0x216/0x8f0 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu kernel/softirq.c:637 [inline]
 irq_exit_rcu+0xbb/0x120 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline]
RIP: 0010:__slub_debug_enabled mm/slab.h:510 [inline]
RIP: 0010:kmem_cache_debug_flags mm/slab.h:531 [inline]
RIP: 0010:kmem_cache_debug mm/slub.c:230 [inline]
RIP: 0010:__slab_free+0x39/0x4d0 mm/slub.c:4253
Code: 41 54 53 48 83 e4 f0 48 83 c4 80 48 89 54 24 08 48 8d 54 24 40 48 89 7c 24 30 48 89 d7 48 89 4c 24 10 b9 08 00 00 00 f3 48 ab <0f> 1f 44 00 00 48 c7 04 24 00 00 00 00 c6 44 24 3e 00 66 44 89 44
RSP: 0018:ffffc90003d27730 EFLAGS: 00000287
RAX: 0000000000000000 RBX: ffff888015442140 RCX: 0000000000000000
RDX: ffffc90003d27770 RSI: ffffea00008e5200 RDI: ffffc90003d277b0
RBP: ffffc90003d277e0 R08: 0000000000000001 R09: ffffffff81e9db49
R10: 0000000000000000 R11: 0000000000000001 R12: ffff888078e4a000
R13: 0000000000000000 R14: ffffc90003d27828 R15: ffffea00008e5200
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4e/0x140 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x192/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:322
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3940 [inline]
 slab_alloc_node mm/slub.c:4000 [inline]
 kmem_cache_alloc_node_noprof+0x153/0x310 mm/slub.c:4043
 kmalloc_reserve+0x18b/0x2c0 net/core/skbuff.c:575
 __alloc_skb+0x164/0x380 net/core/skbuff.c:666
 alloc_skb include/linux/skbuff.h:1308 [inline]
 netlink_alloc_large_skb+0x69/0x130 net/netlink/af_netlink.c:1210
 netlink_sendmsg+0x689/0xd70 net/netlink/af_netlink.c:1880
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 ____sys_sendmsg+0xab5/0xc90 net/socket.c:2585
 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2639
 __sys_sendmsg+0x117/0x1f0 net/socket.c:2668
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f58b8f24a4b
Code: ff 89 ef 48 89 04 24 e8 22 56 f9 ff 48 8b 04 24 48 83 c4 20 5d c3 c3 64 8b 04 25 18 00 00 00 85 c0 75 20 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 6d 48 8b 15 ae c3 0c 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffe73c0e2d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00005610f4ae1240 RCX: 00007f58b8f24a4b
RDX: 0000000000000000 RSI: 00007ffe73c0e2e8 RDI: 0000000000000004
RBP: 00005610f4b0e290 R08: 0000000000000001 R09: 3039abbe55c8e597
R10: 1999999999999999 R11: 0000000000000246 R12: 0000000000000000
R13: 00000000000000c4 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Mem-Info:
active_anon:3729 inactive_anon:0 isolated_anon:0
 active_file:0 inactive_file:15360 isolated_file:0
 unevictable:768 dirty:3 writeback:0
 slab_reclaimable:9244 slab_unreclaimable:79848
 mapped:2131 shmem:1251 pagetables:547
 sec_pagetables:0 bounce:0
 kernel_misc_reclaimable:0
 free:1491166 free_pcp:372 free_cma:0
Node 0 active_anon:14916kB inactive_anon:0kB active_file:0kB inactive_file:61364kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:8524kB dirty:8kB writeback:0kB shmem:3468kB shmem_thp:0kB shmem_pmdmapped:0kB anon_thp:0kB writeback_tmp:0kB kernel_stack:8496kB pagetables:2188kB sec_pagetables:0kB all_unreclaimable? no
Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:76kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:4kB writeback:0kB shmem:1536kB shmem_thp:0kB shmem_pmdmapped:0kB anon_thp:0kB writeback_tmp:0kB kernel_stack:16kB pagetables:0kB sec_pagetables:0kB all_unreclaimable? no
Node 0 DMA free:15360kB boost:0kB min:204kB low:252kB high:300kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 2565 2567 0 0
Node 0 DMA32 free:1992068kB boost:0kB min:35052kB low:43812kB high:52572kB reserved_highatomic:0KB active_anon:14892kB inactive_anon:0kB active_file:0kB inactive_file:59552kB unevictable:1536kB writepending:8kB present:3129332kB managed:2654792kB mlocked:0kB bounce:0kB free_pcp:1456kB local_pcp:760kB free_cma:0kB
lowmem_reserve[]: 0 0 1 0 0
Node 0 Normal free:28kB boost:0kB min:24kB low:28kB high:32kB reserved_highatomic:0KB active_anon:24kB inactive_anon:0kB active_file:0kB inactive_file:1812kB unevictable:0kB writepending:0kB present:1048576kB managed:1896kB mlocked:0kB bounce:0kB free_pcp:32kB local_pcp:8kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:3957208kB boost:0kB min:54828kB low:68532kB high:82236kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:76kB unevictable:1536kB writepending:4kB present:4194304kB managed:4109120kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15360kB
Node 0 DMA32: 724*4kB (UM) 1149*8kB (UME) 213*16kB (UME) 15*32kB (UME) 5*64kB (E) 1*128kB (U) 3*256kB (ME) 1*512kB (U) 2*1024kB (ME) 1*2048kB (E) 481*4096kB (M) = 1991976kB
Node 0 Normal: 1*4kB (M) 1*8kB (M) 1*16kB (M) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 28kB
Node 1 Normal: 6*4kB (UM) 8*8kB (UM) 8*16kB (UM) 12*32kB (UM) 6*64kB (U) 2*128kB (U) 1*256kB (M) 2*512kB (UM) 0*1024kB 1*2048kB (U) 965*4096kB (M) = 3957208kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB
16611 total pagecache pages
0 pages in swap cache
Free swap  = 0kB
Total swap = 0kB
2097051 pages RAM
0 pages HighMem/MovableOnly
401759 pages reserved
0 pages cma reserved
Mem-Info:
active_anon:3734 inactive_anon:0 isolated_anon:0
 active_file:0 inactive_file:15360 isolated_file:0
 unevictable:768 dirty:0 writeback:0
 slab_reclaimable:9186 slab_unreclaimable:79492
 mapped:2131 shmem:1229 pagetables:570
 sec_pagetables:0 bounce:0
 kernel_misc_reclaimable:0
 free:1491784 free_pcp:96 free_cma:0
Node 0 active_anon:14936kB inactive_anon:0kB active_file:0kB inactive_file:61364kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:8524kB dirty:0kB writeback:0kB shmem:3380kB shmem_thp:0kB shmem_pmdmapped:0kB anon_thp:0kB writeback_tmp:0kB kernel_stack:8624kB pagetables:2280kB sec_pagetables:0kB all_unreclaimable? no
Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:76kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp:0kB shmem_pmdmapped:0kB anon_thp:0kB writeback_tmp:0kB kernel_stack:16kB pagetables:0kB sec_pagetables:0kB all_unreclaimable? no
Node 0 DMA free:15360kB boost:0kB min:204kB low:252kB high:300kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 2565 2567 0 0
Node 0 DMA32 free:1994540kB boost:0kB min:35052kB low:43812kB high:52572kB reserved_highatomic:0KB active_anon:14912kB inactive_anon:0kB active_file:0kB inactive_file:59552kB unevictable:1536kB writepending:0kB present:3129332kB managed:2654792kB mlocked:0kB bounce:0kB free_pcp:352kB local_pcp:160kB free_cma:0kB
lowmem_reserve[]: 0 0 1 0 0
Node 0 Normal free:28kB boost:0kB min:24kB low:28kB high:32kB reserved_highatomic:0KB active_anon:24kB inactive_anon:0kB active_file:0kB inactive_file:1812kB unevictable:0kB writepending:0kB present:1048576kB managed:1896kB mlocked:0kB bounce:0kB free_pcp:32kB local_pcp:8kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:3957208kB boost:0kB min:54828kB low:68532kB high:82236kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:76kB unevictable:1536kB writepending:0kB present:4194304kB managed:4109120kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15360kB
Node 0 DMA32: 815*4kB (UM) 1206*8kB (UME) 56*16kB (UME) 58*32kB (UME) 49*64kB (UME) 3*128kB (UM) 2*256kB (ME) 1*512kB (U) 2*1024kB (ME) 1*2048kB (E) 481*4096kB (M) = 1994476kB
Node 0 Normal: 1*4kB (M) 1*8kB (M) 1*16kB (M) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 28kB
Node 1 Normal: 6*4kB (UM) 8*8kB (UM) 8*16kB (UM) 12*32kB (UM) 6*64kB (U) 2*128kB (U) 1*256kB (M) 2*512kB (UM) 0*1024kB 1*2048kB (U) 965*4096kB (M) = 3957208kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB
16589 total pagecache pages
0 pages in swap cache
Free swap  = 0kB
Total swap = 0kB
2097051 pages RAM
0 pages HighMem/MovableOnly
401759 pages reserved
0 pages cma reserved
Mem-Info:
active_anon:3734 inactive_anon:0 isolated_anon:0
 active_file:0 inactive_file:15360 isolated_file:0
 unevictable:768 dirty:0 writeback:0
 slab_reclaimable:9186 slab_unreclaimable:79492
 mapped:2131 shmem:1229 pagetables:570
 sec_pagetables:0 bounce:0
 kernel_misc_reclaimable:0
 free:1491583 free_pcp:285 free_cma:0
Node 0 active_anon:14936kB inactive_anon:0kB active_file:0kB inactive_file:61364kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:8524kB dirty:0kB writeback:0kB shmem:3380kB shmem_thp:0kB shmem_pmdmapped:0kB anon_thp:0kB writeback_tmp:0kB kernel_stack:8652kB pagetables:2280kB sec_pagetables:0kB all_unreclaimable? no
Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:76kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp:0kB shmem_pmdmapped:0kB anon_thp:0kB writeback_tmp:0kB kernel_stack:16kB pagetables:0kB sec_pagetables:0kB all_unreclaimable? no
Node 0 DMA free:15360kB boost:0kB min:204kB low:252kB high:300kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 2565 2567 0 0
Node 0 DMA32 free:1993736kB boost:0kB min:35052kB low:43812kB high:52572kB reserved_highatomic:0KB active_anon:14912kB inactive_anon:0kB active_file:0kB inactive_file:59552kB unevictable:1536kB writepending:0kB present:3129332kB managed:2654792kB mlocked:0kB bounce:0kB free_pcp:1108kB local_pcp:916kB free_cma:0kB
lowmem_reserve[]: 0 0 1 0 0
Node 0 Normal free:28kB boost:0kB min:24kB low:28kB high:32kB reserved_highatomic:0KB active_anon:24kB inactive_anon:0kB active_file:0kB inactive_file:1812kB unevictable:0kB writepending:0kB present:1048576kB managed:1896kB mlocked:0kB bounce:0kB free_pcp:32kB local_pcp:8kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:3957208kB boost:0kB min:54828kB low:68532kB high:82236kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:76kB unevictable:1536kB writepending:0kB present:4194304kB managed:4109120kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15360kB
Node 0 DMA32: 654*4kB (UM) 1192*8kB (UME) 56*16kB (UME) 58*32kB (UME) 49*64kB (UME) 3*128kB (UM) 2*256kB (ME) 1*512kB (U) 2*1024kB (ME) 1*2048kB (E) 481*4096kB (M) = 1993720kB
Node 0 Normal: 1*4kB (M) 1*8kB (M) 1*16kB (M) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 28kB
Node 1 Normal: 6*4kB (UM) 8*8kB (UM) 8*16kB (UM) 12*32kB (UM) 6*64kB (U) 2*128kB (U) 1*256kB (M) 2*512kB (UM) 0*1024kB 1*2048kB (U) 965*4096kB (M) = 3957208kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB
16589 total pagecache pages
0 pages in swap cache
Free swap  = 0kB
Total swap = 0kB
2097051 pages RAM
0 pages HighMem/MovableOnly
401759 pages reserved
0 pages cma reserved
Mem-Info:
active_anon:3721 inactive_anon:0 isolated_anon:0
 active_file:0 inactive_file:15360 isolated_file:0
 unevictable:768 dirty:0 writeback:0
 slab_reclaimable:9222 slab_unreclaimable:79492
 mapped:2131 shmem:1239 pagetables:556
 sec_pagetables:0 bounce:0
 kernel_misc_reclaimable:0
 free:1491351 free_pcp:502 free_cma:0
Node 0 active_anon:14884kB inactive_anon:0kB active_file:0kB inactive_file:61364kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:8524kB dirty:0kB writeback:0kB shmem:3420kB shmem_thp:0kB shmem_pmdmapped:0kB anon_thp:0kB writeback_tmp:0kB kernel_stack:8624kB pagetables:2224kB sec_pagetables:0kB all_unreclaimable? no
Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:76kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp:0kB shmem_pmdmapped:0kB anon_thp:0kB writeback_tmp:0kB kernel_stack:16kB pagetables:0kB sec_pagetables:0kB all_unreclaimable? no
Node 0 DMA free:15360kB boost:0kB min:204kB low:252kB high:300kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 2565 2567 0 0
Node 0 DMA32 free:1992808kB boost:0kB min:35052kB low:43812kB high:52572kB reserved_highatomic:0KB active_anon:14860kB inactive_anon:0kB active_file:0kB inactive_file:59552kB unevictable:1536kB writepending:0kB present:3129332kB managed:2654792kB mlocked:0kB bounce:0kB free_pcp:1976kB local_pcp:1008kB free_cma:0kB
lowmem_reserve[]: 0 0 1 0 0
Node 0 Normal free:28kB boost:0kB min:24kB low:28kB high:32kB reserved_highatomic:0KB active_anon:24kB inactive_anon:0kB active_file:0kB inactive_file:1812kB unevictable:0kB writepending:0kB present:1048576kB managed:1896kB mlocked:0kB bounce:0kB free_pcp:32kB local_pcp:8kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:3957208kB boost:0kB min:54828kB low:68532kB high:82236kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:76kB unevictable:1536kB writepending:0kB present:4194304kB managed:4109120kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15360kB
Node 0 DMA32: 638*4kB (UM) 1185*8kB (UE) 13*16kB (UM) 62*32kB (UE) 49*64kB (UME) 3*128kB (UM) 1*256kB (E) 1*512kB (U) 2*1024kB (ME) 1*2048kB (E) 481*4096kB (M) = 1992784kB
Node 0 Normal: 1*4kB (M) 1*8kB (M) 1*16kB (M) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 28kB
Node 1 Normal: 6*4kB (UM) 8*8kB (UM) 8*16kB (UM) 12*32kB (UM) 6*64kB (U) 2*128kB (U) 1*256kB (M) 2*512kB (UM) 0*1024kB 1*2048kB (U) 965*4096kB (M) = 3957208kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB
16599 total pagecache pages
0 pages in swap cache
Free swap  = 0kB
Total swap = 0kB
2097051 pages RAM
0 pages HighMem/MovableOnly
401759 pages reserved
0 pages cma reserved
Mem-Info:
active_anon:3748 inactive_anon:0 isolated_anon:0
 active_file:0 inactive_file:15360 isolated_file:0
 unevictable:768 dirty:0 writeback:0
 slab_reclaimable:9238 slab_unreclaimable:79752
 mapped:2131 shmem:1237 pagetables:570
 sec_pagetables:0 bounce:0
 kernel_misc_reclaimable:0
 free:1491436 free_pcp:153 free_cma:0
Node 0 active_anon:14992kB inactive_anon:0kB active_file:0kB inactive_file:61364kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:8524kB dirty:0kB writeback:0kB shmem:3412kB shmem_thp:0kB shmem_pmdmapped:0kB anon_thp:0kB writeback_tmp:0kB kernel_stack:8624kB pagetables:2280kB sec_pagetables:0kB all_unreclaimable? no
Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:76kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp:0kB shmem_pmdmapped:0kB anon_thp:0kB writeback_tmp:0kB kernel_stack:16kB pagetables:0kB sec_pagetables:0kB all_unreclaimable? no
Node 0 DMA free:15360kB boost:0kB min:204kB low:252kB high:300kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 2565 2567 0 0
Node 0 DMA32 free:1993148kB boost:0kB min:35052kB low:43812kB high:52572kB reserved_highatomic:0KB active_anon:14968kB inactive_anon:0kB active_file:0kB inactive_file:59552kB unevictable:1536kB writepending:0kB present:3129332kB managed:2654792kB mlocked:0kB bounce:0kB free_pcp:580kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 1 0 0
Node 0 Normal free:28kB boost:0kB min:24kB low:28kB high:32kB reserved_highatomic:0KB active_anon:24kB inactive_anon:0kB active_file:0kB inactive_file:1812kB unevictable:0kB writepending:0kB present:1048576kB managed:1896kB mlocked:0kB bounce:0kB free_pcp:32kB local_pcp:8kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:3957208kB boost:0kB min:54828kB low:68532kB high:82236kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:76kB unevictable:1536kB writepending:0kB present:4194304kB managed:4109120kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15360kB
Node 0 DMA32: 975*4kB (UM) 1198*8kB (UME) 281*16kB (UE) 30*32kB (UME) 6*64kB (UE) 2*128kB (UM) 3*256kB (UME) 1*512kB (U) 2*1024kB (ME) 2*2048kB (UE) 480*4096kB (M) = 1993084kB
Node 0 Normal: 1*4kB (M) 1*8kB (M) 1*16kB (M) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 28kB
Node 1 Normal: 6*4kB (UM) 8*8kB (UM) 8*16kB (UM) 12*32kB (UM) 6*64kB (U) 2*128kB (U) 1*256kB (M) 2*512kB (UM) 0*1024kB 1*2048kB (U) 965*4096kB (M) = 3957208kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB
16597 total pagecache pages
0 pages in swap cache
Free swap  = 0kB
Total swap = 0kB
2097051 pages RAM
0 pages HighMem/MovableOnly
401759 pages reserved
0 pages cma reserved

Crashes (10):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/05/20 06:03 upstream 61307b7be41a c0f1611a .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sendmsg
2024/09/02 04:53 upstream c9f016e72b5c 1eda0d14 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sendmsg
2024/09/01 06:17 upstream e8784b0aef62 1eda0d14 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sendmsg
2024/08/10 02:19 upstream ee9a43b7cfe2 a9e7e9e3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in sendmsg
2024/07/16 18:36 upstream d67978318827 215bec2d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sendmsg
2024/07/01 04:35 upstream 3ffea9a7a6f7 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sendmsg
2024/06/04 16:54 upstream f06ce441457d a1feae05 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sendmsg
2024/05/13 11:13 net-next cddd2dc6390b 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in sendmsg
2024/06/22 16:21 linux-next f76698bd9a8c edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in sendmsg
2024/06/04 01:14 bpf-next 96a27ee76f0e 0aba2352 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce BUG: soft lockup in sendmsg
* Struck through repros no longer work on HEAD.