Are you using CentOS 7.2 or 7.3? | ||||||
posted by Greg Whynott on Oct. 4, 2017, 4:20 p.m. | ||||||
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Thread Tags: discuss-at-studiosysadmins | ||||||
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We are seeing a freezing issue when the firefox browser starts and in dolphin when detail view is invoked. Anyone else? What we are seeing is a few scenarios where dolphin or firefox will freeze, dragging the window around leaves those trails all over the place. About 10-15 seconds later everything "lets go" and works perfectly for the rest of the day, unless... You leave firefox idle for an hour or so (out for lunch for example). Then it does the same thing, freeze for up to 20 seconds. we straced' the process and while it was stuck: strace -v -tt -e all -p 13712 11:10:27.061893 mprotect(0x325b85f18000, 8192, PROT_READ|PROT_EXEC) = 0 11:10:27.061985 mprotect(0x325b85f19000, 4096, PROT_READ|PROT_WRITE) = 0 11:10:27.062022 mprotect(0x325b85f19000, 4096, PROT_READ|PROT_EXEC) = 0 11:10:27.062082 mprotect(0x325b85f19000, 4096, PROT_READ|PROT_WRITE) = 0 11:10:27.062117 mprotect(0x325b85f19000, 4096, PROT_READ|PROT_EXEC) = 0 11:10:27.062233 mprotect(0x325b85f19000, 4096, PROT_READ|PROT_WRITE) = 0 11:10:27.062276 mprotect(0x325b85f19000, 4096, PROT_READ|PROT_EXEC) = 0 11:10:27.062433 mprotect(0x325b85f19000, 8192, PROT_READ|PROT_WRITE) = 0 11:10:27.062483 mprotect(0x325b85f19000, 8192, PROT_READ|PROT_EXEC) = 0 11:10:27.062960 poll([{fd=4, events=POLLIN|POLLOUT}], 1, 4294967295) = 1 ([{fd=4, revents=POLLOUT}]) 11:10:27.062998 writev(4, [{"(\0\4\0\\\0\340\0044\2\0\0\0\0\0\0", 16}, {NULL, 0}, {"", 0}], 3) = 16 11:10:27.063039 poll([{fd=4, events=POLLIN}], 1, 4294967295) = 1 ([{fd=4, revents=POLLIN}]) 11:10:27.063122 recvmsg(4, {msg_name(0)=NULL, msg_iov(1)=[{"\1\1\243R\0\0\0\0\247i\241\0018\4\270\1\0\0\0\0\0\0\0\0\0\0 \0\0\0\0\0\0", 4096}], msg_controllen=0, msg_flags=0}, 0) = 32 11:10:27.063165 recvmsg(4, 0x7ffc82cf9e10, 0) = -1 EAGAIN (Resource temporarily unavailable) 11:10:27.063200 recvmsg(4, 0x7ffc82cf9e10, 0) = -1 EAGAIN (Resource temporarily unavailable) 11:10:27.063280 fcntl(85, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=652, len=1} fd 85 is a file open in an NFS homedir: /path/~/.cache/event-sound-cache.tdb.dh095.x86_64-redhat-linux-gnu ----------o0o0o0o0o0o0o0o00-------------------- I installed kernel version 4 on the machine and it *appears* to make things better. I'm not seeing the stalls today. Will deploy to a few TDs for further testing. BUT -- that is not a solution for us. We can't upgrade all our centos 7 machines to version 4.x when they don't 'support' it. Lord knows what grief it'll bring when a required update is released for something else. We also moved the home dir to the another NFS server, then to the local machine, no change it appears. and lastly.... This bug was forwarded to me but I don't think it is related: I say this as I tried the following and dolphin displays the directory without issue (there is a pause but it seems natural for the amount of files):https://bugzilla.redhat.com/ as usual, thanks! greg |