I just got this on the bento cluster:
panic: pipe buffer gone
Backtrace:
[...]
#11 0xc0266170 in pipe_write (fp=0xc5188f00, uio=0xd917dc7c,
---Type return to continue, or q return to quit---
active_cred=0xc67cdc00, flags=0, td=0xc5d84c00)
at /local0/scratch/sys/kern/sys_pipe.c:1068
#12
this is on a UP machine running a -current from ~19 sep.
Two nights in a row it has died with:
panic: pipe buffer gone
Debugger(panic)
Stopped at Debugger+0x54: xchgl %ebx,in_Debugger.0
db trace
Debugger(c048d71c,c0538440,c0492060,e2f38c04,1) at Debugger+0x54
panic(c0492060,0,c0491fbf