From Bugzilla Helper: User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; KKman3.0) Description of problem: I/O but deadlock with multiple snapshot, if there's more then 3 snapshot devices on one source volume. then trying to put hundreds files to the source volume and sync. the sync process will go to deep-sleep and can't wake up anymore. daemon pdflush also goes to sleep.. Version-Release number of selected component (if applicable): FC3 kernel and LVM2, also test with 2.6.13 kernel has the same result How reproducible: Always Steps to Reproduce: 1.create a source volume lv1. 2.create 3 snapshot volumes s1, s2, s3 with source lv1 3.copy all /usr/local files to the lv1 4.sync or execute the following script for i in 1 2 3 4 5 6; do lvcreate -s -L 128 -n s${I} /dev/VG01/lv1 cp -af /etc /mnt/lv1 sync sleep 5 done Actual Results: copy files to the source volume, then I/O process sleep... can't sync files anymore... Expected Results: success sync. Additional info:
*** This bug has been marked as a duplicate of 169597 ***