Discuss May 2024

discuss@lists.centos.org

6 participants
2 discussions

Phantom name server
by Dave Close 24 May '24

24 May '24

I have a CentOS stream 8 system (C8) which runs its own internal name server (BIND 9). In the past, it used an external name server on another machine but that server has been stopped. The resolv.conf file on C8 has been modified to remove the reference to the old server and NetworkManager has been restarted. However, CUPS and other programs on C8 continue to send queries to the old server, all of which eventually time out (of course). The bogus queries to the old server are answered with ICMP destination/port unreachable, confirming that the old name server is not running. But these bogus queries take time and the delays are very annoying. I've also restarted CUPS without effect. There are no references to the old server in /etc/named.conf, but there are references to the subnet it was on as there are other machines there that need to use the new name server. I haven't yet rebooted C8 but I'm prepared if necessary. Is there something else I should do before rebooting C8? Is that even likely to solve the problem? -- Dave Close, Compata, Irvine CA +1 714 434 7359 dave(a)compata.com dhclose(a)alumni.caltech.edu "Fairness is a concept that was invented so kids and idiots could participate in debates." --Dogbert

5 16

No suspend after update
by Michael B Allen 22 May '24

22 May '24

Just updated CentOS 9 Stream on a Lenovo T17 Gen 4 Intel and not it won't suspend with the following error: [ 52.604998] Restarting kernel threads ... done. [ 52.605111] OOM killer enabled. [ 52.605111] Restarting tasks ... done. [ 52.606604] random: crng reseeded on system resumption [ 52.616014] thermal thermal_zone9: failed to read out thermal zone (-61) [ 52.791625] PM: suspend exit [ 52.791733] PM: suspend entry (s2idle) [ 52.797260] Filesystems sync: 0.005 seconds [ 52.797579] Freezing user space processes ... (elapsed 0.001 seconds) done. [ 52.799127] OOM killer disabled. [ 52.799128] Freezing remaining freezable tasks ... [ 72.805437] Freezing of tasks failed after 20.006 seconds (1 tasks refusing to freeze, wq_busy=0): [ 72.805450] task:NFSv4 callback state:I stack:0 pid:2191 ppid:2 flags:0x00004000 [ 72.805453] Call Trace: [ 72.805454] <TASK> [ 72.805456] __schedule+0x21b/0x550 [ 72.805463] schedule+0x2d/0x70 [ 72.805466] nfs41_callback_svc+0x186/0x190 [nfsv4] [ 72.805508] ? __pfx_autoremove_wake_function+0x10/0x10 [ 72.805512] ? __pfx_nfs41_callback_svc+0x10/0x10 [nfsv4] [ 72.805536] kthread+0xdd/0x100 [ 72.805538] ? __pfx_kthread+0x10/0x10 [ 72.805539] ret_from_fork+0x29/0x50 [ 72.805543] </TASK> Kernel: 5.14.0-404.el9.x86_64 How do I boot the previous kernel? Holding Shift down does nothing. Pressing escape brings up some kind of emergency screen that has no options other than to "Press any key to exit". Is CentOS 9 Stream considered stable enough to use as an everyday desktop? Mike

3 7

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Discuss May 2024