On 09/11/2016 15:58, Eric van Gyzen wrote: > On 11/09/2016 07:48, Henri Hennebert wrote: >> I encounter a strange deadlock on >> >> FreeBSD avoriaz.restart.bel 11.0-RELEASE-p3 FreeBSD 11.0-RELEASE-p3 #0 >> r308260: >> Fri Nov 4 02:51:33 CET 2016 >> r...@avoriaz.restart.bel:/usr/obj/usr/src/sys/AVORIAZ amd64 >> >> This system is exclusively running on zfs. >> >> After 3 or 4 days, `periodic daily` is locked in the directory >> /usr/local/news/bin >> >> [root@avoriaz ~]# ps xa|grep find >> 85656 - D 0:01.13 find / ( ! -fstype local -o -fstype rdonly ) >> -prune >> -o ( -name [#,]* -o -name .#* -o -name a.out -o -nam >> 462 1 S+ 0:00.00 grep find >> [root@avoriaz ~]# procstat -f 85656 >> PID COMM FD T V FLAGS REF OFFSET PRO NAME >> 85656 find text v r r------- - - - /usr/bin/find >> 85656 find cwd v d r------- - - - /usr/local/news/bin >> 85656 find root v d r------- - - - / >> 85656 find 0 v c r------- 3 0 - /dev/null >> 85656 find 1 p - rw------ 1 0 - - >> 85656 find 2 v r -w------ 7 17 - - >> 85656 find 3 v d r------- 1 0 - /home/root >> 85656 find 4 v d r------- 1 0 - /home/root >> 85656 find 5 v d r----n-- 1 533545184 - /usr/local/news/bin >> [root@avoriaz ~]# >> >> If I try `ls /usr/local/news/bin` it is also locked. >> >> After `shutdown -r now` the system remain locked after the line '0 0 0 0 0 0' >> >> After a reset and reboot I can access /usr/local/news/bin. >> >> I delete this directory and reinstall the package `portupgrade -fu news/inn` >> >> 5 days later `periodic daily`is locked on the same directory :-o >> >> Any idea? > > I can't help with the deadlock, but someone who _can_ help will probably ask > for > the output of "procstat -kk PID" with the PID of the "find" process.
In fact, it's procstat -kk -a. With just one thread we would see that a thread is blocked on something, but we won't see why that something can not be acquired. -- Andriy Gapon _______________________________________________ freebsd-stable@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
