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SubjectRe: 2.6.17-rc6-rt1
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On Fri, 2006-06-09 at 12:12 +0200, Sébastien Dugué wrote:
> On Fri, 2006-06-09 at 10:42 +0200, Mike Galbraith wrote:

> > After boot, it takes a very long time for KDE to finish loading... more
> > than five minutes for the desktop background to finally appear. Tasks
> > which are doing nothing but a ~50ms gettimeofday() select() idle loop
> > show up in top as using 1 to 3 percent cpu, though strace of these looks
> > fine. Starting any threaded app takes ages, whereas plain-jane things
> > like gcc work fine. For example, if I fire up xmms, the gui comes up
> > quickly, but it takes over three minutes from the time I poke play until
> > the first sound is emitted. Starting evolution takes even longer.
> >
> > Hoping that something might show up while running glibc-2.4 make check
> > to save me from wading through huge truckloads of strace, I tried it.
> > It repeatedly goes boom. RT29 goes boom the same way, but doesn't
> > exhibit the slow threaded app symptom. Drat.
> >
>
> Yep noticed that here too. As you pointed out it seems to be related
> to threaded apps. ls, vi, ... work fine whereas xemacs or others are
> real slow, portmapper fails to respond, ...
>
> I've got no indication in the logs that something went wrong, nor
> do I see any kernel BUG or WARNING.
>
> My box is a dual 2.8GHz HT xeon w/ 2GB mem.
>
> rt29 was fine as is 2.6.17-rc6.
>
> I feel a bit perplexed here.

I found xmms problem.

[pid 8498] 12:53:49.936186 socket(PF_INET, SOCK_STREAM, IPPROTO_IP <unfinished ...>
[pid 8498] 12:53:49.936551 <... socket resumed> ) = 9 <0.000301>
[pid 8498] 12:53:49.936774 fcntl64(9, F_SETFD, FD_CLOEXEC <unfinished ...>
[pid 8498] 12:53:49.937287 <... fcntl64 resumed> ) = 0 <0.000465>
[pid 8498] 12:53:49.937451 setsockopt(9, SOL_SOCKET, SO_REUSEADDR, [1], 4 <unfinished ...>
[pid 8498] 12:53:49.937630 <... setsockopt resumed> ) = 0 <0.000110>
[pid 8498] 12:53:49.937893 connect(9, {sa_family=AF_INET, sin_port=htons(16001), sin_addr=inet_addr("127.0.0.1")}, 16 <unfinished ...>
[pid 8498] 12:56:58.902958 <... connect resumed> ) = -1 ETIMEDOUT (Connection timed out) <188.964934>

which should have been...

[pid 7385] 13:21:38.715146 socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 9 <0.000011>
[pid 7385] 13:21:38.715192 fcntl64(9, F_SETFD, FD_CLOEXEC) = 0 <0.000007>
[pid 7385] 13:21:38.715237 setsockopt(9, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 <0.000008>
[pid 7385] 13:21:38.715283 connect(9, {sa_family=AF_INET, sin_port=htons(16001), sin_addr=inet_addr("127.0.0.1")}, 16) = -1 ECONNREFUSED (Connection refused) <0.000060>

So much for the easy part.

-Mike

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