Bug#904111: [Pkg-clamav-devel] Bug#904111: clamav-daemon causing deadlocks/blocking I/O
On Wed, 25 Jul 2018 22:03:46 +0200 Sebastian Andrzej Siewior wrote: > On 2018-07-25 12:14:17 [+0900], Marc Dequènes (duck) wrote: > > Quack, > > > > I did not try to switch on ScanOnAccess on my production system, but with my > > configuration, which is not that different, I do not have the problem. > > > > I just tried loading Adam's configuration on another system to test the > > ScanOnAccess, copied a clamav test file in one of the protected directory > > and hit the problem. After that the whole machine becomes totally > > unresponsive in a few seconds. > > okay, that is good to know. > > > I am using kernel 4.16.16-2~bpo9+1 on this machine. > > Yeah. That "deadlock" message is only printed on Debian's kernel. Does anyone still have this problem with 0.100.2? It's been out awhile and this bug has gone quiet. Scott K
Bug#904111: [Pkg-clamav-devel] Bug#904111: clamav-daemon causing deadlocks/blocking I/O
On 2018-07-25 12:14:17 [+0900], Marc Dequènes (duck) wrote: > Quack, > > I did not try to switch on ScanOnAccess on my production system, but with my > configuration, which is not that different, I do not have the problem. > > I just tried loading Adam's configuration on another system to test the > ScanOnAccess, copied a clamav test file in one of the protected directory > and hit the problem. After that the whole machine becomes totally > unresponsive in a few seconds. okay, that is good to know. > I am using kernel 4.16.16-2~bpo9+1 on this machine. Yeah. That "deadlock" message is only printed on Debian's kernel. > \_o< > Sebastian
Bug#904111: [Pkg-clamav-devel] Bug#904111: clamav-daemon causing deadlocks/blocking I/O.
On Tue, 24 Jul 2018 21:51:21 +0200 Sebastian Andrzej Siewior wrote: > > That looks like a different issue. Does it still happen if you > > remove clamav-unofficial-sigs? > > This is #902899, the strace shows > > |clamd: yara_exec.c:177: yr_execu > > so were done here :) Yep, that did it :) Thnx! R. -- richard lucassen http://contact.xaq.nl/
Bug#904111: [Pkg-clamav-devel] Bug#904111: clamav-daemon causing deadlocks/blocking I/O
Quack, On 2018-07-24 15:18, Sebastian Andrzej Siewior wrote: On 2018-07-23 17:54:44 [+0900], Marc Dequènes wrote: Quack, Hi, I just upgraded and cannot reproduce this problem. I'm not using the ScanOnAccess feature. just to confirm: you can not reproduce the problem. I did not try to switch on ScanOnAccess on my production system, but with my configuration, which is not that different, I do not have the problem. I just tried loading Adam's configuration on another system to test the ScanOnAccess, copied a clamav test file in one of the protected directory and hit the problem. After that the whole machine becomes totally unresponsive in a few seconds. Jul 25 11:35:14 elwing kernel: [3112805.231170] clamd (13840): Using fanotify permission checks may lead to deadlock; tainting kernel Jul 25 11:36:24 elwing kernel: [3112875.408154] kauditd_printk_skb: 7 callbacks suppressed Jul 25 11:36:24 elwing kernel: [3112875.408155] audit: type=1400 audit(1532486184.205:794): apparmor="ALLOWED" operation="capable" profile="/usr/sbin/clamd" pid=13564 comm="clamd" capability=2 capname="dac_read_search" Jul 25 11:38:37 elwing kernel: [3113009.136000] INFO: task nfsd:20284 blocked for more than 120 seconds. I am using kernel 4.16.16-2~bpo9+1 on this machine. \_o< -- Marc Dequènes
Bug#904111: [Pkg-clamav-devel] Bug#904111: clamav-daemon causing deadlocks/blocking I/O.
On Tue, 24 Jul 2018 08:19:15 +0200 Sebastian Andrzej Siewior wrote: > Is the kernel complaining about something like in the other report > where it claimed something about a deadlock? No, no words like fanotify, deadlock or blocked appear in the logs. I blocked and upgraded one of the (production) servers. After upgrade clamd is running but as soon as a mail is received, it exits. I ran an "strace -f -p " on a running clamd and sent a mail. The output is here: http://tmp.xaq.nl/clamd.strace $ dpkg --get-selections | grep clam clamav install clamav-base install clamav-daemon install clamav-freshclaminstall libclamav7:i386 install libclamunrar7 install plus a vanilla install of clamav-unofficial-sigs. R. -- richard lucassen http://contact.xaq.nl/
Bug#904111: [Pkg-clamav-devel] Bug#904111: clamav-daemon causing deadlocks/blocking I/O
On 2018-07-23 17:54:44 [+0900], Marc Dequènes wrote: > Quack, Hi, > I just upgraded and cannot reproduce this problem. I'm not using the > ScanOnAccess feature. just to confirm: you can not reproduce the problem. > Follows collected config info. > \_o< Sebastian
Bug#904111: [Pkg-clamav-devel] Bug#904111: clamav-daemon causing deadlocks/blocking I/O.
On 2018-07-23 18:26:04 [+0200], Richard Lucassen wrote: > Same here (6 Postfix front-end servers), non-systemd, non-GUI system > running Debian Stretch. Downgrading to 0.99 is a workaround. > ScanOnAccess is set to false. Is the kernel complaining about something like in the other report where it claimed something about a deadlock? > R. Sebastian
