Date: Sat, 24 Oct 2020 15:28:07 +0300 From: Christos Chatzaras <chris@cretaforce.gr> To: freebsd-questions@freebsd.org Subject: PHP-FPM processes hang in UFS-state Message-ID: <675E2CFF-C45D-48C2-8E55-4E9876D5098A@cretaforce.gr>
next in thread | raw e-mail | index | archive | help
This issue happened in 3 different servers the last months. Some PHP-FPM processes hang in UFS-state. The websites that cause the hang are all Prestashop and it's related to = their var/cache files (I believe it happens when they clear the cache = and the files are regenerated). This is a php-fpm process that hang: procstat -kk 73548 PID TID COMM TDNAME KSTACK 73548 100630 php-fpm - mi_switch+0xe2 = sleepq_wait+0x2c sleeplk+0x185 lockmgr_xlock_hard+0x1f5 = __lockmgr_args+0x2bf ffs_lock+0xa5 VOP_LOCK1_APV+0x7c _vn_lock+0x44 = vget+0x4a vfs_hash_get+0xb0 ffs_vgetf+0x3f softdep_sync_buf+0xbee = ffs_syncvnode+0x26f ffs_truncate+0x71b ufs_direnter+0x5f8 = ufs_makeinode+0x5fb ufs_create+0x34 VOP_CREATE_APV+0x76=20 procstat -kk -a : https://www.coderz.gr/ufs/procstat.txt mount | grep home : https://www.coderz.gr/ufs/mount.txt dumpfs /dev/mirror/gm0p7 : https://www.coderz.gr/ufs/dumpfs.txt I have to force reboot the server as /home is not possible to clean = unmount. Then I run fsck which fixes some issues because of the unclean = reboot. Then I run fsck again that shows no errors. Then I mount /home = and first rename the cache folders and finally delete var/cache and = allow it to regenerate prestashop files. But the same issue happens = again after few days. Any idea how to troubleshoot it?=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?675E2CFF-C45D-48C2-8E55-4E9876D5098A>