tag:blogger.com,1999:blog-6469704299235308349.post3636785949304678456..comments2024-02-09T16:24:46.087+11:00Comments on -ck hacking: 2.6.39 BFS progressckhttp://www.blogger.com/profile/02904761195451530213noreply@blogger.comBlogger28125tag:blogger.com,1999:blog-6469704299235308349.post-82519269708241295562011-06-03T20:46:49.640+10:002011-06-03T20:46:49.640+10:00Oh really? Ok, I shall do so then!Oh really? Ok, I shall do so then!ckhttps://www.blogger.com/profile/02904761195451530213noreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-50035474114911873702011-06-03T19:11:21.281+10:002011-06-03T19:11:21.281+10:00There will be some people only looking for a new b...There will be some people only looking for a new blog entry announcing test9!<br /><br />I will test today ...Ralph Ulrichnoreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-33481741169046609912011-06-03T17:31:11.632+10:002011-06-03T17:31:11.632+10:00That's great! Now hopefully the others will al...That's great! Now hopefully the others will also test the test9 patch. I'm hoping this one fixes all the problems.ckhttps://www.blogger.com/profile/02904761195451530213noreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-13558609782498328602011-06-03T01:42:40.360+10:002011-06-03T01:42:40.360+10:00test9-patch fixes the "deluge with XFS" ...test9-patch fixes the "deluge with XFS" issue.<br />Thanks.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-50574334881461106642011-06-02T23:07:18.464+10:002011-06-02T23:07:18.464+10:00@Ralph: I did look at them and did not see much th...@Ralph: I did look at them and did not see much that is likely to have any effect in combination with this bfs related bug I'm afraid.ckhttps://www.blogger.com/profile/02904761195451530213noreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-38404983355892411832011-06-02T23:04:58.403+10:002011-06-02T23:04:58.403+10:00Con, did you look at the related patches of coming...Con, did you look at the related patches of coming 2.6.29.1-rc1 to get a hint? Although most of them identical in stable-queue for 2.6.38 ....Ralph Ulrichnoreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-9589877951058319562011-06-02T13:03:05.847+10:002011-06-02T13:03:05.847+10:00So we have a mostly better, but still 2 reports of...So we have a mostly better, but still 2 reports of problems. Hrm. I've tried everything I can think of to reproduce it locally and failed. Well, here's a test9 patch which may well be a regression but it's worth a shot:<br /><br /><a href="http://ck.kolivas.org/patches/bfs/test/bfs404-test9.patch" rel="nofollow">fs404-test9.patch</a>ckhttps://www.blogger.com/profile/02904761195451530213noreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-75667614124548518372011-06-02T11:34:34.170+10:002011-06-02T11:34:34.170+10:00The bfs404-recheck_unplugged patch completely fixe...The bfs404-recheck_unplugged patch completely fixes the problem with processes locking up for me and has been working well for two days now. My system is very responsive. I was able to run Handbrake to encode some videos in the background and play World of Warcraft. While playing, it was as if there was nothing running in the background. I think this is one of the best releases to date if not the best. Thanks for all the work making Linux more suitable on the desktop. I'm looking forward to ck2.<br /><br />By the way, if it helps with hunting down any remaining bugs, here is my config file.<br />http://tux9656.no-ip.biz/config-2.6.39-ck1.bz2tux9656noreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-17151562760070384352011-06-02T02:00:18.972+10:002011-06-02T02:00:18.972+10:00Yes. it is a UP kernel with preempt enabled.
sysrq...Yes. it is a UP kernel with preempt enabled.<br />sysrq-log: http://pastebin.com/5V6BRnawAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-24109121534859727032011-06-02T00:21:49.832+10:002011-06-02T00:21:49.832+10:00Hi thanks for your report. Is your UP machine runn...Hi thanks for your report. Is your UP machine running a UP kernel? Is it preempt enabled? Can you get a backtrace when it happens please, of sysrq-t and sysrq-p ?ckhttps://www.blogger.com/profile/02904761195451530213noreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-66235738403446043062011-06-01T23:21:27.286+10:002011-06-01T23:21:27.286+10:00I ever reported an issue: "deluge with XFS&qu...I ever reported an issue: "deluge with XFS" on an UP machine.<br /><br />It works well with test3-patch. However, When I use recheck_unplugged-patch, the issus happens again. It is weird because test3-patch is similar to recheck_unplugged-patch.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-91454420283503921072011-06-01T17:15:00.880+10:002011-06-01T17:15:00.880+10:00Stable after 24H on my coreduo2, with wine and emu...Stable after 24H on my coreduo2, with wine and emule always open, 1 mkv movie seen, 2 hours of browsing and audacious music listened, and some I/O traffic in usb pen.<br />If we have to do some specific stress test to our patched systems say to as ck!<br />Thank you for your great work!Axl_Masnoreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-81192143856198418382011-06-01T16:02:30.122+10:002011-06-01T16:02:30.122+10:00test8 and recheck_unplugged should give the same r...test8 and recheck_unplugged should give the same results. I haven't been able to find anything else to blame in that particular part of the code so I'm tempted to release it as ck2 anyway just so that ck1 which is very unstable is not in the wild any more, pending further enlightenment.ckhttps://www.blogger.com/profile/02904761195451530213noreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-45000666197072396282011-06-01T15:21:55.637+10:002011-06-01T15:21:55.637+10:00Those weren't test8 results, they were after I...Those weren't test8 results, they were after I rebuilt with the recheck_unplugged patch. I actually reverted to test8 since then and I haven't had the issue pop up again (yet).TerminXhttps://www.blogger.com/profile/17039223987223127090noreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-8252835033044430762011-06-01T12:23:08.090+10:002011-06-01T12:23:08.090+10:00@TerminX. By reporting test8 results you confused ...@TerminX. By reporting test8 results you confused ck.<br /><br />@ck. test9=recheck_unplugged looks really good.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-1838322624924709792011-06-01T06:37:57.703+10:002011-06-01T06:37:57.703+10:00My issue with chrom{e,ium} seems solved too, 1 day...My issue with chrom{e,ium} seems solved too, 1 day of uptime and no problems so far :)codestationhttps://www.blogger.com/profile/06900636084015370132noreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-9434150714597603192011-06-01T00:18:46.119+10:002011-06-01T00:18:46.119+10:00If there's an edge case I haven't hit it y...If there's an edge case I haven't hit it yet. Chrom{e,ium} hangage reported earlier appears cleared up. I've been up all night hacking away on various things without troubles. Previously the issue showed up within a minute.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-9550517608892189062011-05-31T23:44:10.786+10:002011-05-31T23:44:10.786+10:00Hi Con,
as anonymous I use BFS with BFQv2. And wi...Hi Con,<br /><br />as anonymous I use BFS with BFQv2. And with your new patch kernel 2.6.39 seems as good as my "gold 2.6.38.7-zen kernel". No drawbacks to see at the moment, even under heavy IO it looks good.<br />Don't get the high load values >8 as before.<br />So thanks again for your bug hunting ;)<br /><br />Cu sysitosMikehttps://www.blogger.com/profile/12391045215046883684noreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-60351223112286212872011-05-31T20:39:12.098+10:002011-05-31T20:39:12.098+10:00Thanks everyone for your comments and testing! The...Thanks everyone for your comments and testing! There's no doubt that adding this patch makes things a lot better with no regressions, but it's still not as stable as 2.6.38 given the one report of regressions. There is a small possibility that it's yet another problem, but this patch posted on this thread definitely fixes a real problem. I may release a ck2 anyway but not remove the unstable tag.ckhttps://www.blogger.com/profile/02904761195451530213noreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-54185775912930750432011-05-31T20:32:04.516+10:002011-05-31T20:32:04.516+10:00hi, previous comment didn't get through...
j...hi, previous comment didn't get through... <br /><br />just wanted to say that i haven't hit the issue yet with plain 2.6.39-ck1 on five machines which d1squalifies me as a tester. ;) admittedly i also use the BFQ2 patch.<br /><br />MartinAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-3878807325050349022011-05-31T10:38:17.148+10:002011-05-31T10:38:17.148+10:00wfm (yet :)wfm (yet :)miscnoreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-44562115152623512462011-05-31T08:18:52.403+10:002011-05-31T08:18:52.403+10:00@terminx: yes once something that should be flushi...@terminx: yes once something that should be flushing data to disk is blocked, one by one everything that wants to write to disk will also block. Reading the proc entries you may get further hangs of the tasks trying to read from it.<br />The output of sysrq-p and sysrq-t can be helpful.ckhttps://www.blogger.com/profile/02904761195451530213noreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-32954272865545633372011-05-31T07:59:21.442+10:002011-05-31T07:59:21.442+10:00Running fine 6 hours already.
kernel26-ck 2.6.39-8...Running fine 6 hours already.<br />kernel26-ck 2.6.39-8 (test8) on archlinux if it matters.<br />Standard usage:qtransmission,browsing,music,video...ck_ftwnoreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-20385407219809656372011-05-31T07:03:42.568+10:002011-05-31T07:03:42.568+10:00Interesting. I still have the system up and I man...Interesting. I still have the system up and I manually ran "sync" for shits and giggles... the result is that sync is now deadlocked in "disk sleep" as well.TerminXhttps://www.blogger.com/profile/17039223987223127090noreply@blogger.comtag:blogger.com,1999:blog-6469704299235308349.post-51932161910804114052011-05-31T06:52:54.053+10:002011-05-31T06:52:54.053+10:00Fuck, I just hit some variant of the bug again, re...Fuck, I just hit some variant of the bug again, resulting in a dpkg deadlock when doing an apt-get upgrade.<br /><br />What information from /proc/<pid> is the most useful to you? I notice in /proc/<pid>/status it says "State: D (disk sleep)" and the process is unkillable. The timestamp on status also hasn't changed for 15 minutes so I'm guessing that's when it deadlocked.<br /><br />You're definitely on the right track with your latest attempt at fixing it though. There must be some additional corner/edge case you're not seeing yet.TerminXhttps://www.blogger.com/profile/17039223987223127090noreply@blogger.com