syzbot


protection_fault: icmp_mtudisc_timeout (4)

Status: upstream: reported on 2025/07/16 23:24
Reported-by: syzbot+5de334298738b60f07ab@syzkaller.appspotmail.com
First crash: 2d22h, last: 2d22h
Similar bugs (3)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd protection_fault: icmp_mtudisc_timeout (2) -1 1 311d 311d 0/3 auto-obsoleted due to no activity on 2024/12/10 05:16
openbsd protection_fault: icmp_mtudisc_timeout -1 3 473d 526d 0/3 auto-obsoleted due to no activity on 2024/07/01 04:08
openbsd protection_fault: icmp_mtudisc_timeout (3) -1 1 149d 149d 0/3 auto-obsoleted due to no activity on 2025/05/21 20:37

Sample crash report:
kernel: protection fault trap, code=0
Stopped at      icmp_mtudisc_timeout+0x117:     movq    0(%rax),%rcx
ddb{0}> 
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
the kernel did not panic
ddb{0}> trace
icmp_mtudisc_timeout(fffffd806f08f6e0,0) at icmp_mtudisc_timeout+0x117 sys/netinet/ip_icmp.c:1102
rt_timer_queue_flush(ffffffff838dc750) at rt_timer_queue_flush+0x281 sys/net/route.c:1586
ip_sysctl(ffff80002ac3432c,1,0,ffff80002ac34358,200000001300,4) at ip_sysctl+0xa6c sys/netinet/ip_input.c:1755
net_sysctl(ffff80002ac34324,3,0,ffff80002ac34358,200000001300,4,263d4b78cf1114cf) at net_sysctl+0x64e sys/kern/uipc_domain.c:260
sys_sysctl(ffff80003c4bed20,ffff80002ac34490,ffff80002ac343e0) at sys_sysctl+0x3f2 sys/kern/kern_sysctl.c:-1
syscall(ffff80002ac34490) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002ac34490) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xd0f93b1bc50, count: -7
ddb{0}> show registers
rdi                             0x14
rsi                             0x14
rbp               0xffff80002ac34160
rbx                              0x3
rdx               0xffff80000147a940
rcx               0xffff80003c4bed20
rax               0x25818e78bdad8caf
r8                0xffffffff82b00300    tcp_mtudisc_increase
r9                               0x3
r10               0x8df5cd4f763923b5
r11               0x7e3104e58ddb2676
r12               0xffff800000039058
r13                             0x14
r14                                0
r15               0xfffffd806f08f6e0
rip               0xffffffff8164a657    icmp_mtudisc_timeout+0x117
cs                               0x8
rflags                       0x10246    __ALIGN_SIZE+0xf246
rsp               0xffff80002ac34110
ss                              0x10
icmp_mtudisc_timeout+0x117:     movq    0(%rax),%rcx
ddb{0}> show proc
PROC (syz-executor) tid=459944 pid=82852 tcnt=2 stat=onproc
    flags process=0 proc=4000000<THREAD>
    runpri=50, usrpri=50, slppri=17, nice=20
    wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
    forw=0xffffffffffffffff, list=0xffff80003c4bf760,0xffffffff838cbfc8
    process=0xffff80003c421d40 user=0xffff80002ac2f000, vmspace=0xfffffd806682c988
    estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0
ddb{0}> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
 43473  301567  22972      0  2           0                syz-executor
 82852   83835  92144      0  7           0                syz-executor
*82852  459944  92144      0  7   0x4000000                syz-executor
 15416   72253  96917      0  3        0x80  nanoslp       syz-executor
 15416   98972  96917      0  3   0x4000080  netcon        syz-executor
 15416  482525  96917      0  3   0x4000080  fsleep        syz-executor
 99945  286170  86294      0  3        0x80  nanoslp       syz-executor
 99945  372192  86294      0  3   0x4000080  sbwait        syz-executor
 99945  461998  86294      0  3   0x4000080  fsleep        syz-executor
  1565  268589  73705      0  3        0x80  nanoslp       syz-executor
  1565  203185  73705      0  3   0x4000080  tunread       syz-executor
  1565   48122  73705      0  3   0x4000080  fsleep        syz-executor
  1565  296131  73705      0  3   0x4000000  inode         syz-executor
 25453   26416  59597      0  3      0x3000  suspend       syz-executor
 25453   29813  59597      0  2   0x4081000                syz-executor
 25453  457105  59597      0  3   0x4081000  inode         syz-executor
 69226  453508  42294      0  3        0x82  sbwait        sshd-session
 15681    5055  42294      0  3        0x82  sbwait        sshd-session
 91389  242328  42294      0  3        0x82  sbwait        sshd-session
 46958  489807  42294      0  3        0x82  sbwait        sshd-session
  3191  342041  42294      0  3        0x82  sbwait        sshd-session
 20422  307613  42294      0  3        0x82  sbwait        sshd-session
 50860  378613  42294      0  3        0x82  sbwait        sshd-session
 96917  467012  88768      0  3        0x82  nanoslp       syz-executor
 55831  466781  88768      0  3        0x82  nanoslp       syz-executor
 13682  413606  42294      0  3        0x82  sbwait        sshd-session
 82055  301746  42294      0  3        0x82  sbwait        sshd-session
 87913  484680      0      0  3     0x14200  bored         sosplice
  3773   60846      0      0  3     0x14280  nfsidl        nfsio
 23220  270802      0      0  3     0x14280  nfsidl        nfsio
 18578   30123      0      0  3     0x14280  nfsidl        nfsio
  2600  399944      0      0  3     0x14280  nfsidl        nfsio
 29470  344198      0      0  3     0x14280  nfsidl        nfsio
 59581  422353      0      0  3     0x14280  nfsidl        nfsio
 81287    1238      0      0  3     0x14280  nfsidl        nfsio
 85650  352935      0      0  3     0x14280  nfsidl        nfsio
 40113  394688      0      0  3     0x14280  nfsidl        nfsio
 29466  458070      0      0  3     0x14280  nfsidl        nfsio
 72185  275630      0      0  3     0x14280  nfsidl        nfsio
 78227  341358      0      0  3     0x14280  nfsidl        nfsio
 83881  230138      0      0  3     0x14280  nfsidl        nfsio
 27751  236104      0      0  3     0x14280  nfsidl        nfsio
 84671  441297      0      0  3     0x14280  nfsidl        nfsio
 82433  488522      0      0  3     0x14280  nfsidl        nfsio
 66864  381399      0      0  3     0x14280  nfsidl        nfsio
 43331  511670      0      0  3     0x14280  nfsidl        nfsio
 51353  186339      0      0  3     0x14280  nfsidl        nfsio
 20036   35515      0      0  3     0x14280  nfsidl        nfsio
 86294   93990  88768      0  3        0x82  nanoslp       syz-executor
 37139  509409  88768      0  3        0x82  nanoslp       syz-executor
 92144  167904  88768      0  3        0x82  nanoslp       syz-executor
 59597  391137  88768      0  3        0x82  nanoslp       syz-executor
 22972  414429  88768      0  3        0x82  nanoslp       syz-executor
 73705  331951  88768      0  3        0x82  nanoslp       syz-executor
 88768  476589  42775      0  3        0x82  kqread        syz-executor
 42775  273303  87020      0  3    0x10008a  sigsusp       ksh
 87020  207275  87573      0  3        0x98  kqread        sshd-session
 87573  487972  42294      0  3        0x92  kqread        sshd-session
 78348  454028      1      0  3    0x100083  ttyin         getty
 42294   44469      1      0  3        0x88  kqread        sshd
 60136  250239  56211     74  3   0x1100092  bpf           pflogd
 56211  194490      1      0  3        0x80  sbwait        pflogd
 88312  121134  66192     73  3   0x1100090  kqread        syslogd
 66192  111095      1      0  3    0x100082  sbwait        syslogd
 18509  197250      1      0  3    0x100080  kqread        resolvd
 19348  447188  24586     77  3    0x100092  kqread        dhcpleased
 83893  340295  24586     77  3    0x100092  kqread        dhcpleased
 24586  419833      1      0  3        0x80  kqread        dhcpleased
 44713  228572      0      0  3     0x14200  bored         smr
 12678  290927      0      0  3     0x14200  pgzero        zerothread
 15655  508113      0      0  3     0x14200  aiodoned      aiodoned
 75808  393162      0      0  3     0x14200  syncer        update
 97555  360788      0      0  3     0x14200  cleaner       cleaner
 71414  445008      0      0  3     0x14200  reaper        reaper
 48894  308352      0      0  3     0x14200  pgdaemon      pagedaemon
  9176  327184      0      0  3     0x14200  bored         viomb
 30729  275188      0      0  3  0x40014200  acpi0         acpi0
 36596   62913      0      0  3  0x40014200                idle1
 66608  268679      0      0  3     0x14200  bored         softnet3
 59617  148595      0      0  3     0x14200  bored         softnet2
 43796  490961      0      0  3     0x14200  bored         softnet1
  1263  334469      0      0  3     0x14200  bored         softnet0
 35603  228468      0      0  3     0x14200  bored         systqmp
 38219   60364      0      0  3     0x14200  bored         systq
 78429  250909      0      0  3     0x14200  tmoslp        softclockmp
 35978  283760      0      0  3  0x40014200  tmoslp        softclock
 43363  465750      0      0  3  0x40014200                idle0
     1   20942      0      0  3        0x82  wait          init
     0       0     -1      0  3  0x10010200  scheduler     swapper
ddb{0}> show all locks
Process 82852 (syz-executor) thread 0xffff80003c4bed20 (459944)
exclusive rwlock netlock r = 0 (0xffffffff837df220)
#0  witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1  rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310
#2  ip_sysctl+0xa57 sys/netinet/ip_input.c:1755
#3  net_sysctl+0x64e sys/kern/uipc_domain.c:260
#4  sys_sysctl+0x3f2 sys/kern/kern_sysctl.c:-1
#5  syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#5  syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748
#6  Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839d9d68)
#0  witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1  sysctl_vslock+0x80 sys/kern/kern_sysctl.c:196
#2  net_sysctl+0x5c2 sys/kern/uipc_domain.c:257
#3  sys_sysctl+0x3f2 sys/kern/kern_sysctl.c:-1
#4  syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#4  syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748
#5  Xsyscall+0x128
exclusive rwlock sysctllk r = 0 (0xffffffff8386e828)
#0  witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1  rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310
#2  sysctl_vslock+0x45 sys/kern/kern_sysctl.c:191
#3  net_sysctl+0x5c2 sys/kern/uipc_domain.c:257
#4  sys_sysctl+0x3f2 sys/kern/kern_sysctl.c:-1
#5  syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#5  syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748
#6  Xsyscall+0x128
Process 1565 (syz-executor) thread 0xffff80003c4c4a80 (203185)
exclusive rrwlock inode r = 0 (0xfffffd806e2051d8)
#0  witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1  rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310
#2  rrw_enter+0xc6 sys/kern/kern_rwlock.c:605
#3  VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527
#4  vn_lock+0xa4 sys/kern/vfs_vnops.c:570
#5  spec_open+0x305 sys/kern/spec_vnops.c:151
#6  VOP_OPEN+0x8b sys/kern/vfs_vops.c:138
#7  vn_open+0x708 sys/kern/vfs_vnops.c:177
#8  vndioctl+0xcb1 sys/dev/vnd.c:457
#9  VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
#10 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531
#11 sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1
#12 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#12 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748
#13 Xsyscall+0x128
Process 1565 (syz-executor) thread 0xffff80002a2a6020 (296131)
exclusive rrwlock inode r = 0 (0xfffffd806c37df80)
#0  witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1  rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310
#2  rrw_enter+0xc6 sys/kern/kern_rwlock.c:605
#3  VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527
#4  vn_lock+0xa4 sys/kern/vfs_vnops.c:570
#5  vfs_lookup+0x109 sys/kern/vfs_lookup.c:418
#6  namei+0x7aa sys/kern/vfs_lookup.c:250
#7  dosymlinkat+0xee sys/kern/vfs_syscalls.c:1804
#8  syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#8  syscall+0xb08 sys/arch/amd64/amd64/trap.c:748
#9  Xsyscall+0x128
Process 25453 (syz-executor) thread 0xffff80003c4c54c0 (29813)
exclusive rrwlock inode r = 0 (0xfffffd806e06e788)
#0  witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1  rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310
#2  rrw_enter+0xc6 sys/kern/kern_rwlock.c:605
#3  VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527
#4  vn_lock+0xa4 sys/kern/vfs_vnops.c:570
#5  vn_write+0x190 sys/kern/vfs_vnops.c:405
#6  dofilewritev+0x23c sys/kern/sys_generic.c:380
#7  sys_write+0xa2 sys/kern/sys_generic.c:300
#8  syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#8  syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748
#9  Xsyscall+0x128
Process 25453 (syz-executor) thread 0xffff8000ffff1218 (457105)
exclusive rwlock uvnsync r = 0 (0xffffffff839dbbe0)
#0  witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1  rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310
#2  uvm_vnp_sync+0x31 sys/uvm/uvm_vnode.c:1488
#3  sys_sync+0xda sys/kern/vfs_syscalls.c:534
#4  syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#4  syscall+0xb08 sys/arch/amd64/amd64/trap.c:748
#5  Xsyscall+0x128
shared rwlock vfslock r = 0 (0xffff800000b49860)
#0  witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1  rw_do_enter_read+0x36e sys/kern/kern_rwlock.c:397
#2  vfs_busy+0x94 sys/kern/vfs_subr.c:246
#3  sys_sync+0x5d sys/kern/vfs_syscalls.c:528
#4  syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#4  syscall+0xb08 sys/arch/amd64/amd64/trap.c:748
#5  Xsyscall+0x128
ddb{0}> show malloc
           Type InUse  MemUse  HighUse   Limit  Requests Type Lim
         devbuf 10235  11054K   11632K 166960K     13181        0
            pcb    17     17K      18K 166960K       293        0
         rtable   257     12K      12K 166960K       632        0
             pf    41     18K      22K 166960K       149        0
         ifaddr    45      8K       8K 166960K       105        0
        ifgroup    63      2K       2K 166960K       161        0
         sysctl     4      1K       9K 166960K        22        0
       counters    72     37K      37K 166960K       178        0
       ioctlops     0      0K       4K 166960K      1656        0
            iov     0      0K      16K 166960K        54        0
          mount     1      1K       1K 166960K         1        0
            log     0      0K       0K 166960K         4        0
         vnodes  1404     88K      89K 166960K      2217        0
      UFS quota     1     32K      32K 166960K         1        0
      UFS mount     5     36K      36K 166960K         5        0
            shm     2      1K       9K 166960K        22        0
         VM map     2      1K       1K 166960K         2        0
            sem    12      0K       0K 166960K       100        0
        dirhash    15      2K       3K 166960K        39        0
           ACPI  1692    195K     286K 166960K     12470        0
      file desc    18     65K     240K 166960K      1260        0
          sigio     0      0K       0K 166960K        18        0
           proc    72     91K     128K 166960K       732        0
        subproc    72      4K       4K 166960K        99        0
    NFS srvsock     1      0K       0K 166960K         1        0
     NFS daemon     1     16K      16K 166960K         1        0
    ip_moptions     1      0K       0K 166960K       305        0
       in_multi    95      7K       7K 166960K       185        0
    ether_multi     1      0K       0K 166960K         7        0
            mrt     1      0K       0K 166960K         8        0
    ISOFS mount     1     32K      32K 166960K         1        0
  MSDOSFS mount     1     16K      16K 166960K         1        0
           ttys   229   1023K    1023K 166960K       229        0
           exec     0      0K       1K 166960K       676        0
   fusefs mount     1     32K      32K 166960K         1        0
            tdb     3      0K       0K 166960K         3        0
        VM swap     8     62K      64K 166960K        10        0
       UVM amap   331    228K     242K 166960K     13040        0
       UVM aobj    59      2K       2K 166960K        62        0
     pinsyscall    61    122K     122K 166960K      2470        0
        memdesc     1      4K       4K 166960K         1        0
    crypto data     1      1K       1K 166960K         1        0
    ip6_options     0      0K       0K 166960K        50        0
            NDP    14      0K       2K 166960K        74        0
           temp    61   8680K    8748K 166960K     52520        0
         kqueue    13     20K      28K 166960K       215        0
      SYN cache     2     16K      16K 166960K         2        0
ddb{0}> show all pools
Name      Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache    128       26    0        0     1     0     1     1     0     8    0
rtpcb      120      177    0      174     3     2     1     3     0     8    0
rtentry    176      190    0       87     6     0     6     6     0     8    0
unpcb      144      675    0      638     4     2     2     4     0     8    0
syncache   336       13    0       13     2     2     0     1     0     8    0
tcpqe       32        1    0        1     1     1     0     1     0     8    0
tcpcb      736      385    0      367    13    11     2     8     0     8    0
arp        128       27    0        7     1     0     1     1     0     8    0
inpcb      328     1347    0     1322    20    14     6    12     0     8    3
nd6        144       42    0       16     1     0     1     1     0     8    0
pkpcb       40       12    0       12     3     2     1     1     0     8    1
kcovpl      48       11    0        3     1     0     1     1     0     8    0
mppekey    1024       1    0        1     1     1     0     1     0     8    0
ppxss      1192      43    0       43     2     1     1     1     0     8    1
pppxif     1504       3    0        3     2     2     0     1     0     8    0
pffrag     232       12    0        5     1     0     1     1     0   482    0
pffrnode    88       11    0        4     1     0     1     1     0     8    0
pffrent     40       18    0       11     1     0     1     1     0     8    0
pfosfp      40     1428    0     1005     5     0     5     5     0     8    0
pfosfpen   112     1428    0      714    21     0    21    21     0     8    0
pfrktable  1344       1    0        0     1     0     1     1     0     8    0
pfanchor   1288       1    0        1     1     1     0     1     0     8    0
pftag       88        5    0        0     1     0     1     1     0     8    0
pfstitem    24      122    0       32     1     0     1     1     0     8    0
pfstkey    128      124    0       34     3     0     3     3     0     8    0
pfstate    384      124    0       34     9     0     9     9     0     8    0
pfrule     1344      30    0       22     2     1     1     2     0     8    0
rttmr      136       11    0        7     2     1     1     1     0     8    0
art_heap8  4096       4    0        1     4     1     3     3     0     8    0
art_heap4  256      909    0      463    34     5    29    32     0     8    0
art_table   40      913    0      464     7     1     6     6     0     8    0
art_node    32      189    0       97     1     0     1     1     0     8    0
sysvmsgpl   40       41    0        7     2     1     1     1     0     8    0
semupl     112        2    0        2     1     1     0     1     0     8    0
semapl     112       97    0       87     1     0     1     1     0     8    0
shmpl      112       59    0        3     2     0     2     2     0     8    0
dirhash    1024      36    0       17     3     0     3     3     0     8    0
dino2pl    256     3576    0     2058    96     0    96    96     0     8    0
ffsino     288     3576    0     2058   109     0   109   109     0     8    0
nchpl      144     5241    0     3545    64     0    64    64     0     8    0
rtmask      32       11    0       11     3     3     0     1     0     8    0
uvmvnodes   80     4105    0        0    84     0    84    84     0     8    0
vnodes     216     4105    0        0   229     0   229   229     0     8    0
namei      1024   17611    0    17609     5     3     2     2     0     8    1
percpumem   16      104    0       53     1     0     1     1     0     8    0
kstatmem   264      100    0       70     4     2     2     3     0     8    0
scsiplug    72        2    0        2     2     2     0     1     0     8    0
scxspl     216    31809    0    31809    13    10     3     8     1     8    3
plimitpl   152      225    0      206     1     0     1     1     0     8    0
sigapl     424     1568    0     1488    11     1    10    10     0     8    0
knotepl    120      797    0        0    24     0    24    24     0     8    0
kqueuepl   224      346    0      337     2     1     1     2     0     8    0
pipepl     336      205    0      178     3     0     3     3     0     8    0
fdescpl    520     1527    0     1486     3     0     3     3     0     8    0
filepl     160     8592    0     8324    19     4    15    15     0     8    1
lockfpl    104      500    0      496     1     0     1     1     0     8    0
lockfspl    48      223    0      219     1     0     1     1     0     8    0
sessionpl  144       35    0       17     1     0     1     1     0     8    0
pgrppl      48       61    0       35     1     0     1     1     0     8    0
ucredpl    104     1313    0     1298     1     0     1     1     0     8    0
zombiepl   144     1491    0     1488     1     0     1     1     0     8    0
processpl  1240    1568    0     1488     7     0     7     7     0     8    0
procpl     656     3485    0     3395    11     2     9     9     0     8    0
sosppl     168        6    0        6     4     3     1     1     0     8    1
sockpl     728     2236    0     2171    25    15    10    16     0     8    3
mcl64k     65536      8    0        0     1     0     1     1     0     8    0
mcl16k     16384      5    0        0     1     0     1     1     0     8    0
mcl12k     12288      2    0        0     1     0     1     1     0     8    0
mcl9k      9216       3    0        0     1     0     1     1     0     8    0
mcl8k      8192       5    0        0     1     0     1     1     0     8    0
mcl4k      4096     124    0        0    16     0    16    16     0     8    0
mcl2k2     2112       1    0        0     1     0     1     1     0     8    0
mcl2k      2048      35    0        0     4     0     4     4     0     8    0
mtagpl      96       15    0        0     1     0     1     1     0     8    0
mbufpl     256      386    0        0    24     0    24    24     0     8    0
bufpl      280    12575    0     6433   441     1   440   440     0     8    1
anonpl      32    15574    0        0   127     1   126   126     0   246    0
amapchunkpl 152   42952    0    42361    42    14    28    36     0   158    0
amappl16   200     5193    0     4965    64    41    23    28     0     8    6
amappl15   192        7    0        7     1     1     0     1     0     8    0
amappl14   184      140    0      119     2     0     2     2     0     8    0
amappl13   176        7    0        6     1     0     1     1     0     8    0
amappl12   168     2236    0     2196     3     1     2     2     0     8    0
amappl11   160       85    0       71     1     0     1     1     0     8    0
amappl10   152        4    0        4     1     1     0     1     0     8    0
amappl9    144      251    0      250     2     1     1     1     0     8    0
amappl8    136       24    0       21     1     0     1     1     0     8    0
amappl7    128      124    0      102     1     0     1     1     0     8    0
amappl6    120      232    0      220     1     0     1     1     0     8    0
amappl5    112      150    0      140     1     0     1     1     0     8    0
amappl4    104      373    0      351     1     0     1     1     0     8    0
amappl3     96     8672    0     8535     5     1     4     4     0     8    0
amappl2     88      770    0      654     3     0     3     3     0     8    0
amappl1     80    15860    0    14463    29     0    29    29     0     8    0
amappl      88    12034    0    11832     7     1     6     6     0    92    0
dma8192    8192       2    0        2     1     1     0     1     0     8    0
dma4096    4096       1    0        1     1     1     0     1     0     8    0
dma2048    2048       1    0        1     1     1     0     1     0     8    0
dma1024    1024       1    0        0     1     0     1     1     0     8    0
dma256     256        6    0        6     1     1     0     1     0     8    0
dma128     128      255    0      255     3     3     0     1     0     8    0
dma64       64       10    0       10     3     3     0     1     0     8    0
dma32       32        7    0        7     1     1     0     1     0     8    0
dma16       16       18    0       17     1     0     1     1     0     8    0
aobjpl      72       61    0        3     2     0     2     2     0     8    0
uaddrrnd    24     1527    0     1486     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24     1527    0     1486     1     0     1     1     0     8    0
vmmpekpl   168    14423    0    14366     3     0     3     3     0     8    0
vmmpepl    168   104516    0   100995   186    23   163   169     0   357    5
vmsppl     480     1526    0     1486     6     0     6     6     0     8    0
rwobjpl     72    33928    0    27694   117     0   117   117     0     8    1
pdppl      4096    3061    0     2972   127    38    89    89     0     8    0
pvpl        32    29812    0        0   242     1   241   241     0   265    0
pmappl     256     1526    0     1486     3     0     3     3     0     8    0
extentpl    40       45    0       27     1     0     1     1     0     8    0
phpool     112      452    0       65    12     0    12    12     0     8    0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
icmp_mtudisc_timeout(fffffd806f08f6e0,0) at icmp_mtudisc_timeout+0x117 sys/netinet/ip_icmp.c:1102
rt_timer_queue_flush(ffffffff838dc750) at rt_timer_queue_flush+0x281 sys/net/route.c:1586
ip_sysctl(ffff80002ac3432c,1,0,ffff80002ac34358,200000001300,4) at ip_sysctl+0xa6c sys/netinet/ip_input.c:1755
net_sysctl(ffff80002ac34324,3,0,ffff80002ac34358,200000001300,4,263d4b78cf1114cf) at net_sysctl+0x64e sys/kern/uipc_domain.c:260
sys_sysctl(ffff80003c4bed20,ffff80002ac34490,ffff80002ac343e0) at sys_sysctl+0x3f2 sys/kern/kern_sysctl.c:-1
syscall(ffff80002ac34490) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002ac34490) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xd0f93b1bc50, count: -7
ddb{0}> machine ddbcpu 1
Stopped at      x86_ipi_db+0x27:        addq    $0x8,%rsp
ddb{1}> trace
x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
pvclock_get(ffffffff838bed10) at pvclock_get+0x69 sys/dev/pv/pvclock.c:334
nanouptime(ffff80002abda918) at nanouptime+0x61 tc_delta sys/kern/kern_tc.c:138 [inline]
nanouptime(ffff80002abda918) at nanouptime+0x61 binuptime sys/kern/kern_tc.c:191 [inline]
nanouptime(ffff80002abda918) at nanouptime+0x61 sys/kern/kern_tc.c:217
clock_gettime(ffff80003c4be570,3,ffff80002abda918) at clock_gettime+0xaa sys/kern/kern_time.c:129
sys_clock_gettime(ffff80003c4be570,ffff80002abdaa50,ffff80002abda9a0) at sys_clock_gettime+0x59 sys/kern/kern_time.c:173
syscall(ffff80002abdaa50) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002abdaa50) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7add06d56400, count: -9

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/07/16 23:23 openbsd 9ce74a582983 3cda49cf .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore protection_fault: icmp_mtudisc_timeout
* Struck through repros no longer work on HEAD.