on each squid restart the drive which is rock have some problems . that drive is very very busy after several minutes . the following line shows iostat after 18 minutes Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn sdb 3004.00 41324.00 0.00 41324 0 cache.log includes a lot of following lines WARNING: cache_dir[0]: Ignoring malformed cache entry meta data at 51174042469 if again i restart squid it takes same time . in that time squid performance decreases and sometimes could not serve http . is this a normal behavior of rock ? here is my squid.conf cache_dir rock /cache2 101000 min-size=0 max-size=32767 fstab /cache2 ext4 noatime,nodiratime,discard,errors=remount-ro,data=writeback,barrier=0,async 0 0 drive is OCZ-VERTEX3 120GB Store Directory #0 (rock): /cache2 FS Block Size 1024 Bytes Maximum Size: 103424000 KB Current Size: 43675803.08 KB 42.23% Maximum entries: 3232098 Current entries: 1364910 42.23% Pending operations: 127 out of 0 Flags: SELECTED the config is available in this post <http://squid-web-proxy-cache.1019090.n4.nabble.com/IpIntercept-cc-137-NetfilterInterception-NF-getsockopt-SO-ORIGINAL-DST-failed-on-FD-4125-2-No-such-fy-td4662558.html> -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/rock-problem-on-each-squid-restart-tp4662864.html Sent from the Squid - Users mailing list archive at Nabble.com.