-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, I have a problem with my one remaining reiserfs partition on rotating rust. The problem I initially detected was that telling the machine to hibernate sometimes appeared to stall, and I had to force a power off (via physical power switch) to recover. In fact, I found out later, the kernel was simply syncing one partition, and this operation would take half an hour, which it is absurd. Later I found out that it was only one partition affected, and this partition was (is) reiserfs. Then I guessed that the slow operation was syncing the metadata (the time stamps) of the news (nntp) spool. Traditionally a news server touches (and use) the access timestamp each time a post is read, affecting one file per read. With the default mount options used nowdays this modification stays in RAM for long, many hours. So, the cronjob that scans the news spool now also calls sync on that filesystem, and when hibernating I call sync in advance. This improved things, but not completely. Thus I finally resorted to moving the news spool only to another reiserfs partition created on an SSD disk, which usually syncs in seconds, instead of half an hour. So I thought, problem solved. But later on I noticed that the sync operation prior to hibernating on the old reiserfs partition still takes long, but only on some days - even if nothing writes there now. This is astonishing. Look, last Monday: Telcontar:~ # hibernate 2021-12-13 04:26:18+01:00 Checking news to send 2021-12-13 04:26:22+01:00 Syncing rm: cannot remove '/var/lib/news/bin/cronscriptparafetchnews.enabled': No such file or directory 2021-12-13 06:06:09+01:00 synced. Now screensaver xscreensaver-command: no screensaver is running on display :0.0 touch /var/lib/news/bin/cronscriptparafetchnews.enabled Telcontar:~ # An hour and a half to sync a not used partition! (I know it is only one partition because I monitor it with gkrellm) Hibernation script: date --rfc-3339=seconds echo Checking news to send /var/lib/news/bin/cronscriptparaenviarnewspendientes date --rfc-3339=seconds echo Syncing rm /var/lib/news/bin/cronscriptparafetchnews.enabled strace -o /tmp/hibernate.strace sync date --rfc-3339=seconds echo "synced. Now screensaver" xscreensaver-command -lock sleep 3 #sudo chvt 10 #sleep 1 sudo /usr/local/sbin/beep sleep 1 #systemctl hibernate sudo /usr/bin/systemctl hibernate The structure of the mount is this: Telcontar:~ # mount | grep sdc9 /dev/sdc9 on /data/Lareiserfs type reiserfs (rw,relatime,lazytime,user_xattr,acl) /dev/sdc9 on /usr/src type reiserfs (rw,relatime,lazytime,user_xattr,acl) /dev/sdc9 on /home/cer/terrasync type reiserfs (rw,relatime,lazytime,user_xattr,acl) /dev/sdc9 on /data/homedvl type reiserfs (rw,relatime,lazytime,user_xattr,acl) /dev/sdc9 on /usr/share/flightgear type reiserfs (rw,relatime,lazytime,user_xattr,acl) Telcontar:~ # The first one is the actual mount, the rest are bind mounts - fstab: LABEL=c_data_reiser /data/Lareiserfs reiserfs acl,user_xattr,barrier=flush,lazytime 1 3 /data/Lareiserfs/gamedata/flightgear /usr/share/flightgear none bind 0 0 /data/Lareiserfs/gamedata/terrasync /home/cer/terrasync none bind 0 0 /data/Lareiserfs/data_homedvl /data/homedvl none bind 0 0 /data/Lareiserfs/usr_src /usr/src none bind 0 0 Now I have added entries to my hibernate script to sync each reiserfs bind mount separately, find out which one it is, if any. - -- Cheers Carlos E. R. (from 15.2 x86_64 at Telcontar) -----BEGIN PGP SIGNATURE----- iHoEARECADoWIQQZEb51mJKK1KpcU/W1MxgcbY1H1QUCYbiC3Bwccm9iaW4ubGlz dGFzQHRlbGVmb25pY2EubmV0AAoJELUzGBxtjUfVNQ0An0UB/PrQobQOFtt1bA5b ll35Ej7FAJ9E6b3Mh88V1OcIbudlN0SwdavIhw== =hvzD -----END PGP SIGNATURE-----