syzbot


SYZFAIL: failed to recv rpc

Status: upstream: reported on 2024/07/18 08:53
Reported-by: syzbot+d625be76c0f8dbdc16aa@syzkaller.appspotmail.com
First crash: 380d, last: 6m

Sample crash report:
SYZFAIL: failed to recv rpc
fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor)


FreeBSD/amd64 (ci-freebsd-main-5.us-central1-b.c.syzkaller.internal) (ttyu0)

login: maxproc limit exceeded by uid 0 (pid 7231); see tuning(7) and login.conf(5)
set $lines = 0
set $maxwidth = 0
panic: failed to reclaim memory
cpuid = 1
time = 27
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe0056c9f470
kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe0056c9f5d0
vpanic() at vpanic+0x257/frame 0xfffffe0056c9f790
panic() at panic+0xb5/frame 0xfffffe0056c9f860
vm_pageout_oom() at vm_pageout_oom+0xce4/frame 0xfffffe0056c9f8f0
vm_pageout_worker() at vm_pageout_worker+0xf9b/frame 0xfffffe0056c9fea0
vm_pageout() at vm_pageout+0x2ce/frame 0xfffffe0056c9fef0
fork_exit() at fork_exit+0xcc/frame 0xfffffe0056c9ff30
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0056c9ff30
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 8 tid 100077 ]
Stopped at      kdb_enter+0x6e: movq    $0,0x25c43e7(%rip)
db> show registers
cs                        0x20
ds                        0x3b
es                        0x3b
fs                        0x13
gs                        0x1b
ss                        0x28
rax                       0x12
rcx         0xfffffe0002bf1850
rdx                          0
rbx         0xffffffff827cc4a0  .str.27
rsp         0xfffffe0056c9f5b0
rbp         0xfffffe0056c9f5d0
rsi                          0
rdi         0xffffffff81614c79  printf+0x149
r8                           0
r9                  0xffffffff
r10                          0
r11                       0x17
r12         0xfffffe0054014780
r13         0xfffffffffffffffd
--More--        r14         0xffffffff827cc4a0  .str.27
r15                          0
rip         0xffffffff815fe7ae  kdb_enter+0x6e
rflags                    0x46
kdb_enter+0x6e: movq    $0,0x25c43e7(%rip)
db> proc
No such command; use "help" to list available commands
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 7367  7367     0     0  N                                   syz-executor
 7366  7366     0     0  N                                   syz-executor
 7365  1866   763     0  N                                   syz-executor
 7364  1821   763     0  N                                   syz-executor
 7363  1058   763     0  N                                   syz-executor
 7362  1188   763     0  N                                   syz-executor
 7361  1965   763     0  N                                   syz-executor
 7360  1790   763     0  N                                   syz-executor
 7359   997   763     0  N                                   syz-executor
 7358  1760   763     0  N                                   syz-executor
 7357  1934   763     0  N                                   syz-executor
 7356  1915   763     0  N                                   syz-executor
 7355  1706   763     0  N                                   syz-executor
 7354  1693   763     0  N                                   syz-executor
 7353  1676   763     0  N                                   syz-executor
 7352  1673   763     0  N                                   syz-executor
 7351  1433   763     0  N                                   syz-executor
 7350  1368   763     0  N                                   syz-executor
 7349  1094   763     0  N                                   syz-executor
--More--         7348   991   763     0  N                                   syz-executor
 7347  1101   763     0  N                                   syz-executor
 7346  1020   763     0  N                                   syz-executor
 7345  1163   763     0  N                                   syz-executor
 7344  1095   763     0  N                                   syz-executor
 7343  1017   763     0  N                                   syz-executor
 7342  1142   763     0  N                                   syz-executor
 7341  1293   763     0  N                                   syz-executor
 7340  1166   763     0  N                                   syz-executor
 7339  1164   763     0  N                                   syz-executor
 7338  1124   763     0  N                                   syz-executor
 7337  1138   763     0  N                                   syz-executor
 7336  1246   763     0  N                                   syz-executor
 7335  2092   763     0  N                                   syz-executor
 7334  2101   763     0  N                                   syz-executor
 7333  2270   763     0  N                                   syz-executor
 7332  2363   763     0  N                                   syz-executor
 7331  2232   763     0  N                                   syz-executor
 7330  2364   763     0  N                                   syz-executor
 7329  2334   763     0  N                                   syz-executor
--More--         7328  2136   763     0  N                                   syz-executor
 7327  2345   763     0  N                                   syz-executor
 7326  2295   763     0  N                                   syz-executor
 7325  2209   763     0  N                                   syz-executor
 7324  2200   763     0  N                                   syz-executor
 7323  2250   763     0  N                                   syz-executor
 7322  2262   763     0  N                                   syz-executor
 7321  2050   763     0  N                                   syz-executor
 7320  2156   763     0  N                                   syz-executor
 7319  2035   763     0  N                                   syz-executor
 7318  2349   763     0  N                                   syz-executor
 7317  2143   763     0  N                                   syz-executor
 7316  2176   763     0  N                                   syz-executor
 7315  2293   763     0  N                                   syz-executor
 7314  2221   763     0  N                                   syz-executor
 7313  2056   763     0  N                                   syz-executor
 7312  2039   763     0  N                                   syz-executor
 7311  2017   763     0  N                                   syz-executor
 7310  1223   763     0  N                                   syz-executor
 7309  1986   763     0  N                                   syz-executor
--More--         7308  1980   763     0  N                                   syz-executor
--More--         7307  1962   763     0  N                                   syz-executor
 7306  1940   763     0  N                                   syz-executor
 7305  1930   763     0  N                                   syz-executor
 7304  1814   763     0  N                                   syz-executor
 7303  1207   763     0  N                                   syz-executor
 7302  1887   763     0  N                                   syz-executor
 7301  1203   763     0  N                                   syz-executor
 7300  1826   763     0  N                                   syz-executor
 7299  2019   763     0  N                                   syz-executor
 7298  1805   763     0  N                                   syz-executor
 7297  1992   763     0  N                                   syz-executor
 7296  1948   763     0  N                                   syz-executor
 7295  1743   763     0  N                                   syz-executor
 7294  1766   763     0  N                                   syz-executor
 7293  1932   763     0  N                                   syz-executor
 7292  1888   763     0  N                                   syz-executor
 7291  1709   763     0  N                                   syz-executor
 7290  1699   763     0  N                                   syz-executor
 7289  1680   763     0  N                                   syz-executor
 7288  1172   763     0  N                                   syz-executor
--More--         7287  1653   763     0  N                                   syz-executor
--More--         7286  1640   763     0  N                                   syz-executor
 7285  1631   763     0  N                                   syz-executor
 7284  1169   763     0  N                                   syz-executor
 7283  1396   763     0  N                                   syz-executor
 7282  1615   763     0  N                                   syz-executor
 7281  1608   763     0  N                                   syz-executor
 7280  1604   763     0  N                                   syz-executor
 7279  1598   763     0  N                                   syz-executor
 7278  1369   763     0  N                                   syz-executor
 7277  1586   763     0  N                                   syz-executor
 7276  1077   763     0  N                                   syz-executor
 7275  1570   763     0  N                                   syz-executor
 7274  1565   763     0  N                                   syz-executor
 7273  1556   763     0  N                                   syz-executor
 7272  1440   763     0  N                                   syz-executor
 7271  1543   763     0  N                                   syz-executor
 7270  1539   763     0  N                                   syz-executor
 7269  1537   763     0  N                                   syz-executor
 7268  1533   763     0  N                                   syz-executor
 7267  1391   763     0  N                                   syz-executor
--More--         7266  1527   763     0  N                                   syz-executor
--More--         7265  1521   763     0  N                                   syz-executor
 7264  5644   763     0  D       pfault  0xffffffff83003480  syz-executor
 7263  4427   763     0  D       pfault  0xffffffff83003480  syz-executor
 7262  4245   763     0  D       pfault  0xffffffff83003480  syz-executor
 7261  5214   763     0  D       pfault  0xffffffff83003480  syz-executor
 7260  4661   763     0  D       pfault  0xffffffff83003480  syz-executor
 7259  7230   763     0  D       pfault  0xffffffff83003480  syz-executor
 7258  7223   763     0  D       pfault  0xffffffff83003480  syz-executor
 7257  7222   763     0  D       pfault  0xffffffff83003480  syz-executor
 7256  7221   763     0  D       pfault  0xffffffff83003480  syz-executor
 7255  4642   763     0  D       pfault  0xffffffff83003480  syz-executor
 7254  4288   763     0  D       pfault  0xffffffff83003480  syz-executor
 7253  4520   763     0  D       pfault  0xffffffff83003480  syz-executor
 7252  4922   763     0  D       pfault  0xffffffff83003480  syz-executor
 7251  4427   763     0  D       pfault  0xffffffff83003480  syz-executor
 7250  4427   763     0  D       pfault  0xffffffff83003480  syz-executor
 7249  3402   763     0  D       pfault  0xffffffff83003480  syz-executor
 7248  3402   763     0  D       pfault  0xffffffff83003480  syz-executor
 7247  3402   763     0  D       pfault  0xffffffff83003480  syz-executor
 7246  3402   763     0  D       pfault  0xffffffff83003480  syz-executor
--More--         7245  5644   763     0  D       pfault  0xffffffff83003480  syz-executor
 7244  5644   763     0  D       pfault  0xffffffff83003480  syz-executor
 7243  5644   763     0  D       pfault  0xffffffff83003480  syz-executor
 7242  5644   763     0  D       pfault  0xffffffff83003480  syz-executor
 7241  3325   763     0  D       pfault  0xffffffff83003480  syz-executor
 7240  3325   763     0  D       pfault  0xffffffff83003480  syz-executor
 7239  3325   763     0  D       pfault  0xffffffff83003480  syz-executor
 7238  3325   763     0  D       pfault  0xffffffff83003480  syz-executor
 7237  3325   763     0  D       pfault  0xffffffff83003480  syz-executor
 7236     1  7236     0  D       vmwait  0xffffffff83003480  syz-executor
 7235     1   765     0  D       (threaded)                  syz-executor
140814                   D       pfault  0xffffffff83003480  syz-executor
140815                   S       uwait   0xfffffe008ebcfb00  syz-executor
 7234  5149   763     0  D       pfault  0xffffffff83003480  syz-executor
 7233  4271   763     0  D       pfault  0xffffffff83003480  syz-executor
 7232  4271   763     0  D       pfault  0xffffffff83003480  syz-executor
 7231  4271   763     0  D       pfault  0xffffffff83003480  syz-executor
 7230  4271   763     0  D       pfault  0xffffffff83003480  syz-executor
 7229  4747   763     0  D       pfault  0xffffffff83003480  syz-executor
 7228  4747   763     0  D       pfault  0xffffffff83003480  syz-executor
--More--         7227  4747   763     0  D       pfault  0xffffffff83003480  syz-executor
--More--

Crashes (99773):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/08/01 16:11 freebsd-src f61c48f4403f 8e9d1dc1 console log report ci-freebsd-main SYZFAIL: failed to recv rpc
2025/08/01 03:45 freebsd-src 3a686b851f8f 8e9d1dc1 console log report ci-freebsd-main SYZFAIL: failed to recv rpc
2025/08/02 09:06 freebsd-src d1095367eb51 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/02 08:21 freebsd-src 011efaa5cd24 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/02 07:20 freebsd-src 011efaa5cd24 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/02 07:13 freebsd-src 011efaa5cd24 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/02 05:59 freebsd-src 011efaa5cd24 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/02 04:55 freebsd-src 011efaa5cd24 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/02 04:15 freebsd-src 011efaa5cd24 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/02 03:14 freebsd-src 011efaa5cd24 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/02 03:01 freebsd-src 011efaa5cd24 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/02 02:00 freebsd-src 011efaa5cd24 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/02 01:54 freebsd-src 011efaa5cd24 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/02 00:54 freebsd-src 011efaa5cd24 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/02 00:24 freebsd-src 011efaa5cd24 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 23:24 freebsd-src 011efaa5cd24 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 22:38 freebsd-src 011efaa5cd24 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 21:47 freebsd-src 011efaa5cd24 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 21:18 freebsd-src 011efaa5cd24 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 19:23 freebsd-src 011efaa5cd24 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 18:20 freebsd-src f61c48f4403f 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 17:20 freebsd-src f61c48f4403f 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 15:18 freebsd-src f61c48f4403f 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 14:17 freebsd-src f61c48f4403f 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 13:53 freebsd-src f61c48f4403f 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 12:41 freebsd-src f61c48f4403f 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 11:26 freebsd-src f61c48f4403f 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 10:29 freebsd-src f61c48f4403f 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 09:25 freebsd-src f61c48f4403f 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 08:25 freebsd-src f61c48f4403f 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 07:34 freebsd-src f61c48f4403f 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 07:16 freebsd-src f61c48f4403f 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 05:59 freebsd-src f61c48f4403f 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 05:47 freebsd-src f61c48f4403f 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 04:46 freebsd-src ada5bba476bf 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 03:35 freebsd-src ada5bba476bf 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 02:18 freebsd-src ada5bba476bf 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 01:32 freebsd-src ada5bba476bf 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 00:32 freebsd-src ada5bba476bf 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/08/01 00:10 freebsd-src ada5bba476bf 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/07/31 22:58 freebsd-src ada5bba476bf 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/07/31 22:31 freebsd-src ada5bba476bf 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2025/07/31 21:28 freebsd-src ada5bba476bf 8e9d1dc1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
2024/07/18 08:52 freebsd-src a4469a0d19b6 849d34e1 console log report ci-freebsd-i386 SYZFAIL: failed to recv rpc
* Struck through repros no longer work on HEAD.