[issue599] 1.9.0 reproducable panic

Peter Avalos bugs at crater.dragonflybsd.org
Tue Apr 10 20:25:35 PDT 2007

New submission from Peter Avalos <pavalos at theshell.com>:

Here's a panic I'm getting with some pretty serious network (www) load, then 
doing a netstat -an:

Unread portion of the kernel message buffer:
panic: m_copydata, negative off -1
mp_lock = 00000000; cpuid = 0; lapic.id = 00000000
boot() called on cpu#0

syncing disks... 5
Uptime: 12d22h0m32s

(kgdb) bt
#0  dumpsys () at thread.h:83
#1  0xc01954bb in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:370
#2  0xc01957c0 in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:767
#3  0xc01c3a32 in m_copydata (m=0x0, off=0, len=0, cp=0xee9534b0 "\001\001
\b\n\006¦*$\035\bͬ") at /usr/src/sys/kern/uipc_mbuf.c:1014
#4  0xc020fc25 in tcp_output (tp=0xdae0c720) 
at /usr/src/sys/netinet/tcp_output.c:690
#5  0xc02152bf in tcp_timer_persist (xtp=0xdae0c720) 
at /usr/src/sys/netinet/tcp_timer.c:363
#6  0xc01a6423 in softclock_handler (arg=0xc0386a80) 
at /usr/src/sys/kern/kern_timeout.c:307
#7  0xc019d037 in lwkt_deschedule_self (td=Variable "td" is not available.
) at /usr/src/sys/kern/lwkt_thread.c:207
Previous frame inner to this frame (corrupt stack?)

The kernel and vmcore is being uploaded to leaf.  The source is from March 28.


messages: 2485
nosy: pavalos
priority: critical
status: unread
title: 1.9.0 reproducable panic

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