cvs commit: src/sys/kern kern_exit.c sys_process.c
truckman at FreeBSD.org
Wed Feb 11 19:06:33 PST 2004
On 12 Feb, Marius Strobl wrote:
> On Wed, Feb 11, 2004 at 02:06:02PM -0800, Don Lewis wrote:
>> truckman 2004/02/11 14:06:02 PST
>> FreeBSD src repository
>> Modified files:
>> sys/kern kern_exit.c sys_process.c
>> When reparenting a process to init, make sure that p_sigparent is
>> set to SIGCHLD. This avoids the creation of orphaned Linux-threaded
>> zombies that init is unable to reap. This can occur when the parent
>> process sets its SIGCHLD to SIG_IGN. Fix a similar situation in the
>> PT_DETACH code.
> Does this fix Matlab hanging on exit (PR 42457)?
I don't think so. In addition to the bug mentioned in the PR, I think
there is another one that is causing matlab to hang. I don't think the
linux_wait4(-1, &foo, 0 0)
call should hang the parent process even if it has a child thread as
long as it doesn't have a child process. I'd expect that the
linux_wait4() call should return an error, and then matlab would go onto
reap the thread. I'd have to look at the Linux man pages, though.
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