Autoloading module: intpm.ko Starting background file system checks in 60 seconds. Tue Mar 19 13:24 FreeBSD/amd64 (ci-freebsd-main-7.c.syzkaller.internal) (ttyu0) Warning: Permanently added '10.128.10.63' (ECDSA) to the list of known hosts. 2019/03/19 13:24:44 parsed 1 programs 2019/03/19 13:24:44 executed programs: 0 login: panic: m_uiotombuf: progress != total cpuid = 1 time = 1553001884 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0021295370 vpanic() at vpanic+0x1e0/frame 0xfffffe00212953d0 panic() at panic+0x43/frame 0xfffffe0021295430 m_uiotombuf() at m_uiotombuf+0x2b5/frame 0xfffffe0021295490 sctp_lower_sosend() at sctp_lower_sosend+0x5099/frame 0xfffffe0021295670 sctp_sosend() at sctp_sosend+0x510/frame 0xfffffe00212957a0 sosend() at sosend+0xc6/frame 0xfffffe0021295810 kern_sendit() at kern_sendit+0x35e/frame 0xfffffe00212958c0 sendit() at sendit+0x226/frame 0xfffffe0021295920 sys_sendto() at sys_sendto+0x5c/frame 0xfffffe0021295980 amd64_syscall() at amd64_syscall+0x436/frame 0xfffffe0021295ab0 fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe0021295ab0 --- syscall (198, FreeBSD ELF64, nosys), rip = 0x412e5a, rsp = 0x7fffdffdcf38, rbp = 0x6 --- KDB: enter: panic [ thread pid 784 tid 100123 ] Stopped at kdb_enter+0x6a: movq $0,kdb_why db>