(Illustration by Gaich Muramatsu)
On Thu, Apr 21, 2016 at 05:47:33PM +0200, u-myfx_at_aetey.se wrote: > On Thu, Apr 21, 2016 at 10:57:21AM -0400, Jan Harkes wrote: > > several years ago you had me chasing down a server 'deadlock' issue > > related to callbacks, which I was unable to reproduce and I spend about > > a week on this going back and forth with new patches trying to turn > > readlocks into writelocks in the hope it would avoid some possible lock > > ordering issue, adding global timeouts to the callback break multirpc > > calls and other workarounds.... > > > > You were running your servers with clients that were doing ****** > > synchronous DNS lookups? > > No. > > (we switched to the DNS-based server lookups in 2014) The troubleshooting of server meltdowns which you refer to happened with Coda ~6.9.4, in the years 2008-2009. The problem remained unsolved but it gradually ceased, I guess due to us phasing out old installations, both the old Coda clients and OS releases, some kernel networking misbehaviour might have been the culprit or possibly a trigger. Hope this makes you feel better, there is no need to suspect us for wrongdoing. Regards, RuneReceived on 2016-04-21 12:13:04