Date: Sun, 10 May 2026 12:25:14 +0200 From: Alexander Leidinger <Alexander@Leidinger.net> To: Current FreeBSD <freebsd-current@freebsd.org> Subject: Crash in network code Message-ID: <433e69057d938eb5280a08d758234ee6@Leidinger.net>
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Hi,
This is with a src from 2026-04-29-222746 (with a patch for a ZFS
panic):
---snip---
#7 m_mbuftouio (uio=uio@entry=0xfffffe085f2f9dc0, m=0xdeadc0dedeadc0de,
len=len@entry=3414) at
/space/system/usr_src/sys/kern/uipc_mbuf.c:2117
progress = 3414
total = 3414
length = <optimized out>
error = <optimized out>
#8 0xffffffff806038e3 in soreceive_stream_locked (
so=so@entry=0xfffff80482cd0000, sb=sb@entry=0xfffff80482cd0200,
psa=<optimized out>, uio=0xfffffe085f2f9dc0, mp0=0x0,
controlp=<optimized out>, flags=flags@entry=0)
at /space/system/usr_src/sys/kern/uipc_socket.c:3430
len = 3414
error = <optimized out>
n = <optimized out>
oresid = 3414
m = <optimized out>
#9 0xffffffff80603655 in soreceive_stream (so=0xfffff80482cd0000,
psa=0x0,
uio=0xfffffe085f2f9dc0, mp0=0xde, controlp=0x0, flagsp=0x0)
at /space/system/usr_src/sys/kern/uipc_socket.c:3522
sb = 0xffffffbf
flags = 0
error = 0
#10 0xffffffff80604263 in soreceive (so=0x0, psa=0xffffffbf,
uio=0xffffff01,
mp0=0xde, controlp=0x4a3f8da1f6bbbd01, flagsp=0x13cf3c6cce71a2e)
at /space/system/usr_src/sys/kern/uipc_socket.c:3716
saved_vnet = 0x0
error = <optimized out>
#11 0xffffffff805c6485 in fo_read (uio=0xfffffe085f2f9dc0,
active_cred=0xffffff01, active_cred@entry=0xfffffe085f2f9d70,
flags=0,
td=0xfffff8001f9a5780, fp=<optimized out>)
at /space/system/usr_src/sys/sys/file.h:364
No locals.
#12 dofileread (td=0xfffff8001f9a5780, fd=43, fp=<optimized out>,
auio=0xfffffe085f2f9dc0, offset=-1, flags=0)
at /space/system/usr_src/sys/kern/sys_generic.c:369
ktruio = 0x0
cnt = 3414
error = <optimized out>
#13 kern_readv (td=0xfffff8001f9a5780, fd=43,
auio=auio@entry=0xfffffe085f2f9dc0)
at /space/system/usr_src/sys/kern/sys_generic.c:290
fp = 0xfffff805bb8ab0f0
error = <optimized out>
#14 0xffffffff805c637e in sys_read (td=0x0, uap=<optimized out>)
at /space/system/usr_src/sys/kern/sys_generic.c:206
auio = {uio_iov = 0xfffffe085f2f9df0, uio_iovcnt = 1,
uio_offset = 3413, uio_resid = 0, uio_segflg = UIO_USERSPACE,
uio_rw = UIO_READ, uio_td = 0xfffff8001f9a5780}
aiov = {iov_base = 0x1b3248a1c062, iov_len = 0}
error = <optimized out>
---snip---
Does this ring a bell for someone? The system was up for about 4 days
and I have no idea how to reproduce. Full kernel dump available.
Bye,
Alexander.
--
http://www.Leidinger.net Alexander@Leidinger.net: PGP 0x8F31830F9F2772BF
http://www.FreeBSD.org netchild@FreeBSD.org : PGP 0x8F31830F9F2772BF
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