Date: Sat, 5 Apr 2008 22:04:33 -0500 From: "Mark Bucciarelli" <mark@crosscutmedia.com> To: freebsd-questions@freebsd.org Subject: filesystem full after many mmap/munmap cycles Message-ID: <baefbe020804052004o598d0177h74e09e7d4f2caf71@mail.gmail.com>
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Hi, I'm running FreeBSD 7.0 RC1 on AMD 64, dual Opteron with h/w raid1 (scsi). I have an app server that uses mmap a lot. After running a long batch (four hours, 5,100+ transactions), I got the message filesystem full (/usr--ufs, local, soft-updates). df -i says plenty of space. I restarted the batch process, and watched app server process carefully with fstat -p, and it looks to be behaving responsibly. The open file list is short, and when I looked up the file names by inum, they were correct. Each transaction does a mmap/munap cycle with a (big ?) file (79M), then copies another smaller file, using mmap to do the copy. fwrite failed on the copy operation; FreeBSD said no space. (When fwrite failed, I called abort, so I have a core and can see where it happened.) pid 29990 (r.fcgi), uid 1001 inumber 359181 on /usr: filesystem full pid 29990 (r.fcgi), uid 1001: exited on signal 11 Filesystem 1K-blocks Used Avail Capacity iused ifree %iused Mounted on /dev/da0s1g 6297070 3380066 2413240 58% 183869 640449 22% /usr Is there some file system delay (maybe something related to softupdates) that could accumulate in some way that would cause the file system full message? Please CC me, as I'm not a subscriber. Thanks, m
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