On Mon, Jul 15, 2013 at 11:49 AM, mayamatakeshi <[email protected]>wrote:
> > > > On Mon, Jul 15, 2013 at 10:13 AM, mayamatakeshi > <[email protected]>wrote: > >> Hello, >> we are using opensips 1.6 r. 7055 under CentOS 5.3 x86_64 and this works >> fine on several machines. >> I am tasked with preparing upgrade to CentOS 6.4 x86_64 so I have >> prepared a Virtual Machine to run this OS, installed opensips and used the >> same opensips.cfg . >> >> However, I am seeing the following issue: reception of "100 Trying" >> doesn't cancel module tm fr_timer but if other provisional responses like >> "180 Ringing" is received, fr_timer is canceled. >> I am sure the "100 Trying" is received by opensips because it doesn't >> retransmit the INVITE. >> > > Sorry, by mistake I looked at the wrong capture. Indeed, opensips is > retransmitting the INVITE. But checking Call-ID, from-tag and Via headers, > they match and so, opensips should not do retransmission. It seems somehow > it is ignoring the "100 Trying". > > So to further investigate I enabled debug with "opensipsctl fifo debug 4" > (instead of default debug 0), but surprisingly, now opensips accepts the > "180 Trying" (doesn't retransmit the INVITE) and fr_timer is canceled. > In the above I meant "100 Trying". > I tested several times and just by switching debug off and on is enough to > cause the problem to appear/disappear. > > > >> Everything else seems to be fine. >> >> Does anyone has any idea why this could be happening? >> Also, to confirm I have prepared 3 CentOS 6.4 x86_64 VMs, but in one of >> them the problem doesn't happen but I don't know why this is so as i >> compared the packages installed (yum list installed) and they are all the >> same, including version numbers. >> > > Also, on the machine where the problem doesn't manifest itself, it is the > opposite: > if I enable debug with "opensipsctl fifo debug 4", fr_timer fails to be > canceled by "100 Trying". > Retrying several times, the problem occasionally happens on this machine too. So it seems to be some race condition. I was able to try with latest revisions of 1.7 and 1.8 branches and the problem also happens with them. > > >> >> (Also I have tried upgrading to latest branch 1.6 r. 10024, and the >> problem persists). >> >> Regards, >> Takeshi >> >> >> >> >
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