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iterate_fd()iterate_fd()Posted Dec 3, 2012 21:59 UTC (Mon) by proski (subscriber, #104)Parent article: One more 3.7 prepatch I share the guilt for the rc8 existence, as I was slow to report the issue with iterate_fd(). The bug manifested itself as Mozilla Firefox getting very slow on Facebook if Flash plugin is enabled and SELinux is active. The result of "git bisect" was quite surprising! git is one of the best tools that appeared in the recent years. I know next to nothing about the deep internals of the kernel where iterate_fd() was introduced. SELinux wasn't disabled because I didn't really care about that system. I'm definitely not interested in debugging issues in proprietary plugins. Yet git allowed me to find the kernel bug and contribute to fixing it.
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iterate_fd() Posted Dec 4, 2012 0:56 UTC (Tue) by tialaramex (subscriber, #21167) [Link]
Git's bisect is another in a long and meritorious line of tools that take something people already knew was a good idea and automates the boring parts so that they have no excuse for not doing it or for doing it wrong.
Cheers to everyone who has built such a tool, right back to whoever invented the assembler.
iterate_fd() Posted Dec 4, 2012 15:35 UTC (Tue) by mathstuf (subscriber, #69389) [Link]
+1
I spent (more than) a few hours tracking down why my MPD -> MPlayer setup changed[1] last night. Bisected 2+ years of MPD history twice (using different litmus tests for good/bad) and found a commit that…makes little sense both times. But at least I know where to start now.
[1]MPlayer stopped showing tags in MPD's https output stream, times were bogus, and pausing caused MPlayer to buffer, doubling the silence time (and chewing memory). Second two are due to MPlayer not recognizing audio/ogg as an OGG mimetype (email missing the patch was sent; need to resend with patch yet) and the first was lost on the way to 0.16-alpha1…when replay gain was made an output filter. How that breaks streaming tags, I have no idea (yet).
iterate_fd() Posted Dec 4, 2012 21:40 UTC (Tue) by scientes (guest, #83068) [Link]
this is certainly true, but i like the Mozilla tool that avoids recompiles by downloading compiled binaries (mozregressions) is incredibly fast but certainly can only work in certain limited situations.
iterate_fd() Posted Dec 5, 2012 0:42 UTC (Wed) by marcH (subscriber, #57642) [Link]
> ... as Mozilla Firefox getting very slow on Facebook if Flash plugin is enabled and SELinux is active.
The amount of combined pain some people are ready to inflict themselves for the sake of kernel QA is absolutely incredible... some really serious dedication here!
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