panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")

Status: closed as dup on 2026/07/28 09:24
Reported-by: syzbot+4112207372d0a7510622@syzkaller.appspotmail.com
First crash: 70d, last: 69d
▶ ▼ Duplicate of
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported
KASAN: invalid memory access in doktrace -1 1 72d 72d

Sample crash report:
panic: sleep: syz-executor[22802] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
Stopped at      db_enter+0x17:  popq    %rbp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
* 42981  22802      0           0  0x4000010    0K syz-executor
   3707  17362      0         0x2          0    1  syz-executor
db_enter() at db_enter+0x17 sys/arch/amd64/amd64/db_interface.c:457
panic(ffffffff84d8d160) at panic+0x270 sys/kern/subr_prf.c:198
sleep_setup(ffff800001eedab0,11,ffffffff84692f80) at sleep_setup+0x3b2 sys/kern/kern_synch.c:296
tsleep_nsec(ffff800001eedab0,11,ffffffff84692f80,ffffffffffffffff) at tsleep_nsec+0x29c sys/kern/kern_synch.c:153
biowait(ffff800001eedab0) at biowait+0xe6 sys/kern/vfs_bio.c:1110
bwrite(ffff800001eedab0) at bwrite+0x4e1 sys/kern/vfs_bio.c:625
ffs_update(ffff80000207a070,1) at ffs_update+0x619 sys/ufs/ffs/ffs_inode.c:111
ffs_truncate(ffff80000207a070,0,0,ffffffffffffffff) at ffs_truncate+0x12f0 sys/ufs/ffs/ffs_inode.c:-1
ufs_inactive(ffff80002d3ab9a0) at ufs_inactive+0x2cb sys/ufs/ufs/ufs_inode.c:84
VOP_INACTIVE(ffff8000020470f8,ffff800029ad6a88) at VOP_INACTIVE+0x1bb sys/kern/vfs_vops.c:498
vrele(ffff8000020470f8) at vrele+0x16a sys/kern/vfs_subr.c:845
ktrsettrace(ffff800029917500,80000814,ffff8000020a6bf0,ffff800000119618) at ktrsettrace+0x16c sys/kern/kern_ktrace.c:123
ktrops(ffff800029ad6a88,ffff800029917500,0,80000814,ffff8000020a6bf0,ffff800000119618) at ktrops+0x338 sys/kern/kern_ktrace.c:578
doktrace(ffff8000020a6bf0,4,814,0,ffff800029ad6a88) at doktrace+0xa72 ktrsetchildren sys/kern/kern_ktrace.c:607 [inline]
doktrace(ffff8000020a6bf0,4,814,0,ffff800029ad6a88) at doktrace+0xa72 sys/kern/kern_ktrace.c:522
end trace frame: 0xffff80002d3abe90, count: 0
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports.  Insufficient info makes it difficult to find and fix bugs.
ddb{0}> 
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: sleep: syz-executor[22802] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
ddb{0}> show kasan
kasan: no report recorded this boot
ddb{0}> trace
db_enter() at db_enter+0x17 sys/arch/amd64/amd64/db_interface.c:457
panic(ffffffff84d8d160) at panic+0x270 sys/kern/subr_prf.c:198
sleep_setup(ffff800001eedab0,11,ffffffff84692f80) at sleep_setup+0x3b2 sys/kern/kern_synch.c:296
tsleep_nsec(ffff800001eedab0,11,ffffffff84692f80,ffffffffffffffff) at tsleep_nsec+0x29c sys/kern/kern_synch.c:153
biowait(ffff800001eedab0) at biowait+0xe6 sys/kern/vfs_bio.c:1110
bwrite(ffff800001eedab0) at bwrite+0x4e1 sys/kern/vfs_bio.c:625
ffs_update(ffff80000207a070,1) at ffs_update+0x619 sys/ufs/ffs/ffs_inode.c:111
ffs_truncate(ffff80000207a070,0,0,ffffffffffffffff) at ffs_truncate+0x12f0 sys/ufs/ffs/ffs_inode.c:-1
ufs_inactive(ffff80002d3ab9a0) at ufs_inactive+0x2cb sys/ufs/ufs/ufs_inode.c:84
VOP_INACTIVE(ffff8000020470f8,ffff800029ad6a88) at VOP_INACTIVE+0x1bb sys/kern/vfs_vops.c:498
vrele(ffff8000020470f8) at vrele+0x16a sys/kern/vfs_subr.c:845
ktrsettrace(ffff800029917500,80000814,ffff8000020a6bf0,ffff800000119618) at ktrsettrace+0x16c sys/kern/kern_ktrace.c:123
ktrops(ffff800029ad6a88,ffff800029917500,0,80000814,ffff8000020a6bf0,ffff800000119618) at ktrops+0x338 sys/kern/kern_ktrace.c:578
doktrace(ffff8000020a6bf0,4,814,0,ffff800029ad6a88) at doktrace+0xa72 ktrsetchildren sys/kern/kern_ktrace.c:607 [inline]
doktrace(ffff8000020a6bf0,4,814,0,ffff800029ad6a88) at doktrace+0xa72 sys/kern/kern_ktrace.c:522
sys_ktrace(ffff800029ad6a88,ffff80002d3ac010,ffff80002d3abf80) at sys_ktrace+0x1f6 sys/kern/kern_ktrace.c:563
syscall(ffff80002d3ac010) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002d3ac010) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xac335bd1950, count: -17
ddb{0}> show registers
rdi                                0
rsi                              0x1
rbp               0xffff80002d3ab290
rbx               0xffff80002d3ab300
rdx                                0
rcx               0xffffffff851e9ff0    cpu_info_full_primary+0x1ff0
rax                                0
r8                 0x101010101010101
r9                0x8080808080808080
r10               0xffff80002d3ab080
r11               0xffffffff83e54b70    x86_bus_space_io_read_1
r12               0xffffffff84d8d160    .str.9
r13               0xffffffff851eac08    cpu_info_full_primary+0x2c08
r14               0xffffffff851eae07    cpu_info_full_primary+0x2e07
r15                              0x1
rip               0xffffffff82f1b577    db_enter+0x17
cs                               0x8
rflags                         0x246
rsp               0xffff80002d3ab290
ss                              0x10
db_enter+0x17:  popq    %rbp
ddb{0}> show proc
PROC (syz-executor) tid=42981 pid=22802 tcnt=4 stat=onproc
    flags process=0 proc=4000010<CANTSLEEP,THREAD>
    runpri=73, usrpri=73, slppri=17, nice=20
    wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
    forw=0xffffffffffffffff, list=0xffff800029ad62c0,0xffff800029ad6fc8
    process=0xffff800029b49d00 user=0xffff80002d3a1000, vmspace=0xffff80000202f9a8
    estcpu=23, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{0}> ps
   PID     TID   PPID   UID  S      PRLAGS     PFLAGS WAIT      COMMAND
 81139  332661  36883     0  2           0          0           syz-executor
 81139  380468  36883     0  3           0  0x4000080 fsleep    syz-executor
 23659  334383  51923     0  2           0          0           syz-executor
 23659  303756  51923     0  3           0  0x4000080 fsleep    syz-executor
 22802  375474   6913     0  3           0       0x80 nanoslp   syz-executor
 22802  211378   6913     0  2           0  0x4000000           syz-executor
*22802   42981   6913     0  7           0  0x4000010           syz-executor
 22802  320590   6913     0  3           0  0x4000080 fsleep    syz-executor
 17362    3707  51004     0  7         0x2          0           syz-executor
 87862  350363  51004     0  3         0x2       0x80 piperd    syz-executor
 91606  390045  51004     0  3         0x2       0x80 piperd    syz-executor
 81458  456496  51004     0  3         0x2       0x80 piperd    syz-executor
  6913  234479  51004     0  3         0x2       0x80 nanoslp   syz-executor
 36883   21208  51004     0  3         0x2       0x80 nanoslp   syz-executor
 79293    7827  51004     0  3         0x2       0x80 piperd    syz-executor
 51923  143939  51004     0  3         0x2       0x80 nanoslp   syz-executor
 51004  160400  45843     0  2         0x2          0           syz-executor
 45843  500411  21796     0  3         0x2       0x80 thrsleep  syz-execprog
 45843  176693  21796     0  3         0x2  0x4000080 nanoslp   syz-execprog
 45843  500750  21796     0  3         0x2  0x4000080 thrsleep  syz-execprog
 45843  519583  21796     0  3         0x2  0x4000080 kqread    syz-execprog
 45843  523899  21796     0  3         0x2  0x4000080 thrsleep  syz-execprog
 45843   49997  21796     0  3         0x2  0x4000080 thrsleep  syz-execprog
 45843   39374  21796     0  3         0x2  0x4000080 thrsleep  syz-execprog
 45843  104177  21796     0  3         0x2  0x4000080 thrsleep  syz-execprog
 45843  251655  21796     0  3         0x2  0x4000080 thrsleep  syz-execprog
 45843  302225  21796     0  3         0x2  0x4000080 thrsleep  syz-execprog
 45843  173560  21796     0  3         0x2  0x4000080 thrsleep  syz-execprog
 45843   37750  21796     0  3         0x2  0x4000080 thrsleep  syz-execprog
 21796  222906  92208     0  3    0x100002       0x88 sigsusp   ksh
 92208   92736  76741     0  3        0x10       0x88 kqread    sshd-session
 76741    3797  92894     0  3        0x12       0x80 kqread    sshd-session
 21340  317310      1     0  3    0x100003       0x80 ttyin     getty
 92894   16471      1     0  3           0       0x88 kqread    sshd
 14520  452948  66658    74  3   0x1100012       0x80 bpf       pflogd
 66658  122669      1     0  3           0       0x80 sbwait    pflogd
 80722  329531  46589    73  3   0x1100010       0x80 kqread    syslogd
 46589  404962      1     0  3    0x100002       0x80 sbwait    syslogd
 27889  429854      1     0  3    0x100000       0x80 kqread    resolvd
 85143  218887  71196    77  3    0x100012       0x80 kqread    dhcpleased
 21695  465149  71196    77  3    0x100012       0x80 kqread    dhcpleased
 71196  243612      1     0  3           0       0x80 kqread    dhcpleased
 93306  117137      0     0  3     0x14000      0x200 bored     smr
 58742   40150      0     0  2     0x14000      0x200           zerothread
 98415  150653      0     0  3     0x14000      0x200 aiodoned  aiodoned
 49940  467363      0     0  3     0x14000      0x200 syncer    update
 25204  409158      0     0  3     0x14000      0x200 cleaner   cleaner
  9723  124023      0     0  3     0x14000      0x200 reaper    reaper
 86460  460447      0     0  3     0x14000      0x200 pgdaemon  pagedaemon
 97000  486607      0     0  3     0x14000      0x200 bored     viomb
 54045  346004      0     0  3     0x14000 0x40000200 acpi0     acpi0
 95957  389396      0     0  3     0x14000 0x40000200           idle1
 22761  490479      0     0  3     0x14000      0x200 bored     softnet1
 63127  195301      0     0  3     0x14000      0x200 bored     softnet0
  1008  354978      0     0  3     0x14000      0x200 bored     systqmp
 84161  230782      0     0  3     0x14000      0x200 bored     systq
 52638   99914      0     0  3     0x14000      0x200 tmoslp    softclockmp
 25195  379009      0     0  3     0x14000 0x40000200 tmoslp    softclock
 82449  270809      0     0  3     0x14000 0x40000200           idle0
     1  481906      0     0  3         0x2       0x80 wait      init
     0       0     -1     0  3     0x10000      0x200 scheduler swapper
ddb{0}> show all locks
Process 22802 (syz-executor) thread 0xffff800029ad6a88 (42981)
exclusive rrwlock inode r = 0 (0xffff80000207a110)
#0  witness_lock+0x632 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x632 sys/kern/subr_witness.c:1160
#1  rw_do_enter_write+0x53e sys/kern/kern_rwlock.c:320
#2  rrw_enter+0xf0 sys/kern/kern_rwlock.c:621
#3  VOP_LOCK+0x17e sys/kern/vfs_vops.c:527
#4  vn_lock+0xca sys/kern/vfs_vnops.c:576
#5  vrele+0x113 sys/kern/vfs_subr.c:836
#6  ktrsettrace+0x16c sys/kern/kern_ktrace.c:123
#7  ktrops+0x338 sys/kern/kern_ktrace.c:578
#8  doktrace+0xa72 ktrsetchildren sys/kern/kern_ktrace.c:607 [inline]
#8  doktrace+0xa72 sys/kern/kern_ktrace.c:522
#9  sys_ktrace+0x1f6 sys/kern/kern_ktrace.c:563
#10 syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#10 syscall+0x1089 sys/arch/amd64/amd64/trap.c:783
#11 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff85d52380)
#0  witness_lock+0x632 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x632 sys/kern/subr_witness.c:1160
#1  syscall+0x1048 mi_syscall sys/sys/syscall_mi.h:175 [inline]
#1  syscall+0x1048 sys/arch/amd64/amd64/trap.c:783
#2  Xsyscall+0x128
ddb{0}> show malloc
           Type InUse  MemUse  HighUse   Limit  Requests Type Lim
         devbuf 11050  12242K   12242K 166960K     12144        0
            pcb    17     24K      24K 166960K        17        0
         rtable   237     12K      13K 166960K       381        0
             pf    34     22K      22K 166960K        48        0
         ifaddr    43     12K      12K 166960K        49        0
        ifgroup    55      2K       2K 166960K        60        0
         sysctl     1      1K      13K 166960K         5        0
       counters    70     42K      42K 166960K        72        0
       ioctlops     0      0K       4K 166960K      1484        0
          mount     1      1K       1K 166960K         1        0
            log     0      0K       0K 166960K         4        0
         vnodes  1247     80K      80K 166960K      1315        0
      UFS quota     1     36K      36K 166960K         1        0
      UFS mount     5     44K      44K 166960K         5        0
            shm     2      2K       2K 166960K         2        0
         VM map     2      1K       1K 166960K         2        0
            sem     2      0K       0K 166960K         2        0
        dirhash    12      2K       2K 166960K        12        0
           ACPI  1734    201K     292K 166960K     11964        0
      file desc    14     46K      94K 166960K       385        0
           proc    70    128K     177K 166960K       580        0
        subproc     0      0K       3K 166960K        30        0
    NFS srvsock     1      0K       0K 166960K         1        0
     NFS daemon     1     20K      20K 166960K         1        0
       in_multi    99      7K       7K 166960K       110        0
    ether_multi     1      0K       0K 166960K         1        0
            mrt     0      0K       0K 166960K         6        0
    ISOFS mount     1     36K      36K 166960K         1        0
  MSDOSFS mount     1     20K      20K 166960K         1        0
           ttys    25    182K     182K 166960K        25        0
           exec     0      0K       2K 166960K       443        0
   fusefs mount     1     36K      36K 166960K         1        0
            tdb     3      1K       1K 166960K         3        0
        VM swap     8     62K      64K 166960K        10        0
       UVM amap   282    252K     331K 166960K      5398        0
       UVM aobj     3      4K       4K 166960K         3        0
     pinsyscall  1064   1836K    1840K 166960K      1728        0
        memdesc     1      4K       4K 166960K         1        0
    crypto data     1      1K       1K 166960K         1        0
            NDP    12      0K       1K 166960K        31        0
           temp     5   9160K    9172K 166960K      8296        0
         kqueue    14     44K      44K 166960K        40        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       28    0        0     1     0     1     1     0     8    0
rtpcb      120       35    0       32     1     0     1     1     0     8    0
rtentry    176      122    0       12     5     0     5     5     0     8    0
unpcb      144       63    0       46     1     0     1     1     0     8    0
syncache   336        9    0        9     1     0     1     1     0     8    1
tcpcb      736       16    0       10     1     0     1     1     0     8    0
arp        136       20    0        2     1     0     1     1     0     8    0
inpcb      328       77    0       68     2     0     2     2     0     8    1
nd6        152       27    0        3     1     0     1     1     0     8    0
kcovpl      48        4    0        4     1     0     1     1     0     8    1
pfosfp      40     1428    0     1005     5     0     5     5     0     8    0
pfosfpen   112     1428    0      714    21     0    21    21     0     8    0
pfstitem    24       23    0        2     1     0     1     1     0     8    0
pfstkey    128       23    0        2     1     0     1     1     0     8    0
pfstate    448       23    0        2     3     0     3     3     0     8    0
pfrule     1360      21    0       16     2     1     1     2     0     8    0
art_heap8  4096       1    0        0     1     0     1     1     0     8    0
art_heap4  256      501    0       48    29     0    29    29     0     8    0
art_table   40      502    0       48     5     0     5     5     0     8    0
art_node    32      122    0       22     1     0     1     1     0     8    0
dirhash    1024      17    0        0     3     0     3     3     0     8    0
dino2pl    256     1980    0      469    95     0    95    95     0     8    0
ffsino     296     1980    0      469   117     0   117   117     0     8    0
nchpl      144     2743    0      988    66     0    66    66     0     8    0
vnodes     216     2024    0        0   113     0   113   113     0     8    0
namei      1024    8113    0     8113     2     1     1     2     0     8    1
percpumem   16       52    0        1     1     0     1     1     0     8    0
kstatmem   264       29    0        2     2     0     2     2     0     8    0
scxspl     216    13493    0    13492    11     3     8     8     1     8    7
plimitpl   152       62    0       44     1     0     1     1     0     8    0
sigapl     424      705    0      661     7     0     7     7     0     8    1
knotepl    120       70    0        0     3     0     3     3     0     8    0
kqueuepl   224       36    0       26     1     0     1     1     0     8    0
pipepl     344      206    0      178     4     0     4     4     0     8    0
fdescpl    528      689    0      661     3     0     3     3     0     8    0
filepl     160     2552    0     2409     7     0     7     7     0     8    0
lockfpl    104        6    0        4     1     0     1     1     0     8    0
lockfspl    48        4    0        2     1     0     1     1     0     8    0
sessionpl  144       45    0       36     1     0     1     1     0     8    0
pgrppl      48       68    0       51     1     0     1     1     0     8    0
ucredpl    104      141    0      128     1     0     1     1     0     8    0
zombiepl   144      661    0      661     1     0     1     1     0     8    1
processpl  1232     705    0      661     5     0     5     5     0     8    0
procpl     664      918    0      858     6     0     6     6     0     8    0
sockpl     752      175    0      146     4     0     4     4     0     8    1
mcl64k     65536      3    0        0     1     0     1     1     0     8    0
mcl12k     12288      1    0        0     1     0     1     1     0     8    0
mcl8k      8192       2    0        0     1     0     1     1     0     8    0
mcl4k      4096     126    0        0    16     0    16    16     0     8    0
mcl2k      2048      17    0        0     3     0     3     3     0     8    0
mextrefs    64       14    0        0     1     0     1     1     0     8    0
mtagpl      96        1    0        0     1     0     1     1     0     8    0
mbufpl     256      156    0        0     9     0     9     9     0     8    0
bufpl      272     7554    0      408   477     0   477   477     0     8    0
anonpl      32    11040    0        0    89     0    89    89     0   222    0
amapchunkpl 152   17100    0    16438    33     0    33    33     0   158    5
amappl16   200     4386    0     4236     9     0     9     9     0     8    1
amappl15   192       17    0       17     1     1     0     1     0     8    0
amappl14   184      460    0      458     1     0     1     1     0     8    0
amappl13   176      210    0      195     3     1     2     3     0     8    1
amappl12   168     1000    0      973     2     0     2     2     0     8    0
amappl11   160       11    0       11     1     1     0     1     0     8    0
amappl10   152       95    0       80     2     0     2     2     0     8    1
amappl9    144     1754    0     1753     1     0     1     1     0     8    0
amappl8    136      172    0      140     2     0     2     2     0     8    0
amappl7    128      221    0      200     2     0     2     2     0     8    0
amappl6    120      207    0      205     1     0     1     1     0     8    0
amappl5    112      327    0      317     1     0     1     1     0     8    0
amappl4    104      388    0      368     2     0     2     2     0     8    1
amappl3     96     2825    0     2732     3     0     3     3     0     8    0
amappl2     88      873    0      804     5     0     5     5     0     8    2
amappl1     80    16996    0    16374    24     2    22    24     0     8    7
amappl      88     4398    0     4213     5     0     5     5     0    92    0
uvmvnodes   80      102    0        0     3     0     3     3     0     8    0
dma4096    4096       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      253    0      253     1     1     0     1     0     8    0
dma64       64        6    0        6     1     1     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        2    0        0     1     0     1     1     0     8    0
uaddrrnd    24      689    0      661     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24      689    0      661     1     0     1     1     0     8    0
vmmpekpl   168    10528    0    10484     3     0     3     3     0     8    0
vmmpepl    168    67603    0    65677   130     0   130   130     0   357   39
vmsppl     488      688    0      661     5     0     5     5     0     8    0
rwobjpl     80    26453    0    25237    41     8    33    41     0     8    5
pdppl      4096    1386    0     1322   104    30    74    88     0     8   10
pvpl        32    56929    0        0   460     0   460   460     0   265    0
pmappl     256      688    0      661     3     0     3     3     0     8    0
extentpl    40       46    0       28     1     0     1     1     0     8    0
phpool     120      754    0       34    23     0    23    23     0     8    0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_enter() at db_enter+0x17 sys/arch/amd64/amd64/db_interface.c:457
panic(ffffffff84d8d160) at panic+0x270 sys/kern/subr_prf.c:198
sleep_setup(ffff800001eedab0,11,ffffffff84692f80) at sleep_setup+0x3b2 sys/kern/kern_synch.c:296
tsleep_nsec(ffff800001eedab0,11,ffffffff84692f80,ffffffffffffffff) at tsleep_nsec+0x29c sys/kern/kern_synch.c:153
biowait(ffff800001eedab0) at biowait+0xe6 sys/kern/vfs_bio.c:1110
bwrite(ffff800001eedab0) at bwrite+0x4e1 sys/kern/vfs_bio.c:625
ffs_update(ffff80000207a070,1) at ffs_update+0x619 sys/ufs/ffs/ffs_inode.c:111
ffs_truncate(ffff80000207a070,0,0,ffffffffffffffff) at ffs_truncate+0x12f0 sys/ufs/ffs/ffs_inode.c:-1
ufs_inactive(ffff80002d3ab9a0) at ufs_inactive+0x2cb sys/ufs/ufs/ufs_inode.c:84
VOP_INACTIVE(ffff8000020470f8,ffff800029ad6a88) at VOP_INACTIVE+0x1bb sys/kern/vfs_vops.c:498
vrele(ffff8000020470f8) at vrele+0x16a sys/kern/vfs_subr.c:845
ktrsettrace(ffff800029917500,80000814,ffff8000020a6bf0,ffff800000119618) at ktrsettrace+0x16c sys/kern/kern_ktrace.c:123
ktrops(ffff800029ad6a88,ffff800029917500,0,80000814,ffff8000020a6bf0,ffff800000119618) at ktrops+0x338 sys/kern/kern_ktrace.c:578
doktrace(ffff8000020a6bf0,4,814,0,ffff800029ad6a88) at doktrace+0xa72 ktrsetchildren sys/kern/kern_ktrace.c:607 [inline]
doktrace(ffff8000020a6bf0,4,814,0,ffff800029ad6a88) at doktrace+0xa72 sys/kern/kern_ktrace.c:522
sys_ktrace(ffff800029ad6a88,ffff80002d3ac010,ffff80002d3abf80) at sys_ktrace+0x1f6 sys/kern/kern_ktrace.c:563
syscall(ffff80002d3ac010) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002d3ac010) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xac335bd1950, count: -17
ddb{0}> machine ddbcpu 1
Stopped at      x86_ipi_db+0x19:        leave
x86_ipi_db(ffff800028fe3ff0) at x86_ipi_db+0x19 sys/arch/amd64/amd64/db_interface.c:412
x86_ipi_handler() at x86_ipi_handler+0x112 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff85d51b80) at __mp_lock+0x272 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff85d51b80) at __mp_lock+0x272 sys/kern/kern_lock.c:173
syscall(ffff80002d388490) at syscall+0x1048 mi_syscall sys/sys/syscall_mi.h:175 [inline]
syscall(ffff80002d388490) at syscall+0x1048 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x74d375cafca0, count: 9
ddb{1}> trace
x86_ipi_db(ffff800028fe3ff0) at x86_ipi_db+0x19 sys/arch/amd64/amd64/db_interface.c:412
x86_ipi_handler() at x86_ipi_handler+0x112 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff85d51b80) at __mp_lock+0x272 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff85d51b80) at __mp_lock+0x272 sys/kern/kern_lock.c:173
syscall(ffff80002d388490) at syscall+0x1048 mi_syscall sys/sys/syscall_mi.h:175 [inline]
syscall(ffff80002d388490) at syscall+0x1048 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x74d375cafca0, count: -6

Crashes (1819):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/07/16 23:35 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 6ca2b51a .config console log report syz / log [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 13:55 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 13:39 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 13:27 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 13:11 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 12:55 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 12:39 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 12:30 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 12:14 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 11:59 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 11:51 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 11:40 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 11:25 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 11:17 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 11:09 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 11:00 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 10:49 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 10:37 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 10:26 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 10:15 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 10:04 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 09:55 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 09:45 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 09:33 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 09:21 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 09:12 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 09:05 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 08:57 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 08:41 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 08:34 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 08:26 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 7f27c57a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 08:08 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 6ca2b51a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 07:55 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 6ca2b51a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 07:45 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 6ca2b51a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 07:32 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 6ca2b51a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 07:24 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 6ca2b51a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 07:16 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 6ca2b51a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 07:05 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 6ca2b51a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 06:50 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 6ca2b51a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 06:38 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 6ca2b51a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 06:28 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 6ca2b51a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 06:15 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 6ca2b51a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/17 06:01 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 6ca2b51a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
2026/07/16 20:48 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 48ffa5ab14da 6ca2b51a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan panic: sleep: syz-executor[NUM] slept inside a no-sleep walk bracket (raw pointer held across sleep, wmesg "biowait")
* Struck through repros no longer work on HEAD.