Hi, Petr, Just worrying, isn't this bug a side effect of previous interface-related binding patch we're talking about? If yes, since it's not in upstream, it can be quite tricky to reproduce it on vanilla sources.
Best Regards, Vladislav Grishenko -----Original Message----- From: Dnsmasq-discuss <dnsmasq-discuss-boun...@lists.thekelleys.org.uk> On Behalf Of Petr Mensik Sent: Wednesday, August 28, 2019 12:11 PM To: dnsmasq-discuss@lists.thekelleys.org.uk Subject: Re: [Dnsmasq-discuss] [BUG] RA are sent too fast and slows down the machine Hi Iain, of course. I am sorry, forgot to add a link as intended[1]. Used base report from Network Manager tester report. I added it to Fedora bug mentioned, but forgot to add script itself. At least to me, it produces tens of RA announces. Regards, Petr [1] https://github.com/InfrastructureServices/dnsmasq-tests/blob/master/bz1739797.sh On 8/27/19 10:45 AM, Iain Lane wrote: > On Wed, Aug 21, 2019 at 08:59:07PM +0200, Petr Mensik wrote: >> Hi Simon and Maarten, >> >> we discovered when playing with NetworkManager-ci [1], that lastest >> release is somehow broken. Test running dnsmasq are quite slow on >> latest release. >> >> I have created repeatable started script that reproduces it. Then >> used git bisect to find when it was broken. It seems fast sending >> were intentional in commit 0a496f059c1e9 [2], but maybe way it >> affects the system were underestimated. It is significant for systems >> that hit such issue. I think it has to be fixed to slow it down to >> short time interval, not endless loop. Reported as Fedora bug [3]. > > Thanks for this Petr. Would you be able to share the script you've > used, so that perhaps an upstream developer could recreate the bug? > > Mainly I wanted to chime in and say that (in addition to the other > instance referenced), we found this in the NetworkManager testsuite in > Ubuntu. I didn't come up with a nice reproducer at the time, but we > did identify the same commit and we've reverted it in Ubuntu. I posted > on the ML back then but we didn't get much traction and I didn't > follow up very aggressively. > > > http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2018q4/012709 > .html > > > https://launchpadlibrarian.net/405377161/dnsmasq_2.80-1_2.80-1ubuntu1.diff.gz > (the commit ID referenced in the changelog there seems or from > somewhere else, it's the same patch) > > Cheers, > > > _______________________________________________ > Dnsmasq-discuss mailing list > Dnsmasq-discuss@lists.thekelleys.org.uk > http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss > -- Petr Menšík Software Engineer Red Hat, http://www.redhat.com/ email: pemen...@redhat.com PGP: 65C6C973 _______________________________________________ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss