On Sat, Oct 21, 2006 at 05:14:05PM -0700, Don Lewis wrote: > On 21 Oct, David Xu wrote: > > davidxu 2006-10-21 23:59:15 UTC > > > > FreeBSD src repository > > > > Modified files: > > sys/kern kern_exit.c > > Log: > > Since revision 1.333 of kern_sig.c no longer uses P_WEXIT, the change > > opened a race window which can cause memory leak in signal queue. > > Here we free memory for signal queue when process state is set to > > PRS_ZOMBIE. > > > > Revision Changes Path > > 1.291 +8 -2 src/sys/kern/kern_exit.c > > I wonder if the earlier change is what broke portupgrade after I > upgraded from an August 31st version of current to yesterday's version. > The symptoms were random processes dying from SIGHUP. It was easy to > reproduce by just going to a port directory and running > script foo make clean > a few times. I'd randomly see make complain about a non-zero exit > status from uname or some other sub-process. I tracked the problem back > to the SIGHUP bit being set in td2's sigqueue in fork1(). As a > workaround, I added a call to sigqueue_init() where td2 gets bzero'ed.
Something is making java segfault reproducibly on a recent kernel too. I'll test to see whether this fixes it. Kris
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