On 06/06/18 23:49, James Pearson wrote: > Frank Thommen wrote: >> >> Hi, >> >> since I updated my workstation from CentOS 7.4 to 7.5, Firefox and >> Thunderbird (both 52.8.0, from CentOS repos) regularly freeze (or crash) >> and cannot be restarted afterwards. Trying to start them results in a >> "Bus error (core dumped)" (Firefox) and "Killed" (Thunderbird). The >> system log then shows: >> >> kernel: NFS: nfs4_reclaim_open_state: Lock reclaim failed! >> >> each time I try to start the applications (our homedirectories are >> mounted via NFS4). As far as I can see, no other applications are >> affected. The workstation needs to be rebooted to fix the situation. >> >> Has anyone else seen that or knows how to debug or fix this issue? I >> tried with strace and wireshark w/o finding anything helpful. > > I'm not sure what the el7 default for the Firefox > 'storage.nfs_filesystem' pref is - but you could try setting it to > 'true' to see if that makes a difference ? > > James Pearson > I'll give that a try. Thanks for the hint. That's one of Firefox' problems: There doesn't seem to be a decent documentation for all the available configuration settings. Cheers frank