For the attention of intrigeri: Mathew's mail is in reply to
https://lists.debian.org/debian-printing/2017/12/msg00032.html He and I have spent some time is looking at a number of issues he has experienced with the printing system when upgrading from jessie to buster. It looks like apparmor is involved. I do not experience them. On Mon 11 Dec 2017 at 22:28:15 +0530, P V Mathew wrote: > as requested have reinstalled apparmor > > The following programs are not working > > man(from command line) but man2html ok > > icedove - (double free error} ---bizarre? Using standalone download of > thunderbird for this mail. > > cups started on reboot but by the time logged in, it had stopped. > > cups was restarted and command > > lp -d PDF a.ps was used > > the subject error returned. > > but eventually cups stopped again. > > dmesg showed some sort of infinite loop? > > Oops. realize now, may be about 2-3 years ago when my var partition got > full, > > had moved the var/log on to /home/ and sym-linked to it in var. May be > > this is not consistent with apparmor(not sure?). When I do that I can still print but the error_log is not written to because cupsd cannot change the permissions on /var/log/cups (as shown by systemctl status cups after restarting cups). > any way, pieces of dmesg|grep cups attached. Not possible to attach full > > file as similar lines keeps repeating. > > Please let me know if any more input is required. Thanks, Mathew. >From bb.bbz2: [ 2121.775238] audit: type=1400 audit(1513009058.480:17316): apparmor="DENIED" \ operation="chown" profile="/usr/sbin/cupsd" name="/home/log/cups/" \ pid=5896 comm="cupsd" requested_mask="w" denied_mask="w" fsuid=0 ouid=0 [ 2121.775251] audit: type=1400 audit(1513009058.480:17317): apparmor="DENIED" \ operation="capable" profile="/usr/sbin/cupsd" pid=5896 comm="cupsd" \ capability=12 capname="net_admin" apparmor is new to buster and I am new to apparmor; but this looks like cupsd has been refused write permission. intrigeri is our lifeline for things apparmor, so I have cc'ed him (her?) for advice. Cheers, Brian.
