Date: Sun, 4 Mar 2007 01:05:53 -0500 From: Yoshihiro Ota <ota@j.email.ne.jp> To: Robert Watson <rwatson@FreeBSD.org> Cc: Randall Stewart <rrs@cisco.com>, Scott Robbins <scottro@nyc.rr.com>, "Stephane E. Potvin" <sepotvin@FreeBSD.org>, brooks@FreeBSD.org, current@FreeBSD.org Subject: Re: HEADS UP: UNIX domain socket locking changes merged to CVS HEAD Message-ID: <20070304010553.4c288aa6.ota@j.email.ne.jp> In-Reply-To: <20070303221906.I60688@fledge.watson.org> References: <20070226204916.C56223@fledge.watson.org> <45E5D589.3080202@FreeBSD.org> <20070228234754.Q13593@fledge.watson.org> <45E6178F.8040302@cisco.com> <20070301031907.GD94643@mail.scottro.net> <45E67908.9090707@cisco.com> <20070301090253.M13593@fledge.watson.org> <45E69EE3.9010407@cisco.com> <20070302005803.GC26188@mail.scottro.net> <45E82030.7000402@cisco.com> <20070302132436.GB46154@mail.scottro.net> <20070302234750.7b57c23c.ota@j.email.ne.jp> <20070303221906.I60688@fledge.watson.org>
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On Sat, 3 Mar 2007 22:21:16 +0000 (GMT) Robert Watson <rwatson@FreeBSD.org> wrote: > > On Fri, 2 Mar 2007, Yoshihiro Ota wrote: > > > My X runs fine but I think I am still seeing this problem with diffrent > > ports. > > > > They are japanese/Canna japanese/kinput2-canna. > > > > Canna uses "unix" domain socket to communicate and it still doesn't work. > > Before, Canna reproted some "unix" domain socket error. Now, it doesn't > > report such errors but "kinput2" stucks. > > > > Installing kinput2-cann will install Canna as well. You will need these 2 > > entries to run Canna. > > > > canna_enable="YES" canna_flags="-u bin inet" > > > > Then, you need the following to allow to use kinput from X terminals. > > > > setenv XMODIFIERS '@im=kinput > > > > Once you start canna, run "kinput2" in one of the X terminals. Then, > > kinput2 eats all CPU. > > Could you confirm that if you run the code precisely before the commits in > question (i.e., back out to uipc_usrreq.c:1.196 and unpcb.h:1.22) the problem > goes away completely? If so, could you try running ktrace on kinput2 and see > if it's looping around any particular syscalls and getting an error > repeatedly? It could be that an error is now (possibly incorrectly) being > returned and that kinput2 is not handling that well. > > Robert N M Watson I changed to uipc_usrreq.c 1.199 to 1.196 and I already had unpcb.h 1.11. After rebooting, the problem still remains. The below is what I got from ktrace/kdump run on uipc_usrreq.c@1.199. I think I started seeing this problem on last Sat. or Sun day. It seems that when I kill kinput2, canna dies together so that when I see like this: $ sh /usr/local/etc/rc.d/canna.sh stop Cannot connect with cannaserver "unix". % ktrace -f ktrace.out 1274 kinput2 RET poll 1 1274 kinput2 CALL poll(0x88450fb0,0x2,0) 1274 kinput2 RET poll 1 1274 kinput2 CALL poll(0x88450fb0,0x2,0) 1274 kinput2 RET poll 1 %grep poll ktrace.txt | wc 621264 2795688 22986795
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