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SubjectRe: That whole Netscape problem...
Neil Conway wrote:
>
> Linux account wrote:
> >
> > On Tue, 19 Jan 1999, Charles Shannon Hendrix wrote:
> > > The other day I turned Java completely off in 4.08 and it has not
> > > crashed for nearly 3 days. This is with kernel 2.1.132.
> >
> > Indeed. On 2.0.36 and 2.1.anything, I've seen Netscape eat the processor
> > and freeze with lots of those SIGALRM calls scrolling away to infinity.
> > Turn off Java and, though it hogs and hogs memory, it doesn't get into
> > this loop.
> >
> > So, may I suspect the JVM? I hear a new JVM is coming in 5.
>
> Sorry to spoil the party but I never use Java (am I paranoid or isn't it
> about as secure as a paper bag) and I have regular hangs and crashes
> (like two-three per week) on 4.06 under 2.0.3x (2.0.35 at present).
>
> I do usually have Javascript turned on, but that's about it. I use it
> for web and mail.
>
> The symptoms are either of "Bus Error" (mostly) to just burning CPU and
> doing nothing (occasionally). Maybe I should strace() it next time it
> gets stuck in a loop, but I haven't yet.
>

The SIGALRM loop happens here as well, only thing I noticed it _seems_ to
happen when one of the windows attempts a TCP connection to a site which
[don't kill me, I have no knowledge of a TCP connection handshaking phase]
isn't quite fast in responding and netstat -tn shows the state as SYN_SENT.

Other data comes in for other windows, Recv-Q's build up, but if that TCP
connection stays in SYN_SENT there is nothing to do except kill -SEGV the
Netscape PID. Kill -TERM can at times make all windows go away but the
process stays there, so a further SEGV is needed to complete the job :(



--alessandro <asuardi@uninetcom.it> <asuardi@it.oracle.com>

Linux 2.0.36/2.2.0-pre7 glibc-2.0.7-29 gcc-2.8.1 binutils-2.9.1.0.19a

"I hate bugs which disappear just as soon as you start trying to
narrow things down." -- Stephen Tweedie



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