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Subjectfsync trouble with 2.5.34
Date
Linux version 2.5.34 (gcc version 3.2.1), 400MHz AMD K6-2, UP, preemptible.

kmail 1.4.3 keeps hanging for several (sometimes many) seconds when
running 2.5.34. I attached gdb to it during one of these hangs and got

(gdb) bt
#0 0x411544fd in fsync () from /lib/libc.so.6
#1 0x410119c6 in fsync () from /lib/libpthread.so.0
#2 0x0812ee88 in KDialog::marginHint ()
#3 0x08107948 in KDialog::marginHint ()
#4 0x0814734c in KDialog::marginHint ()
#5 0x08149089 in KDialog::marginHint ()
#6 0x0814306e in KDialog::marginHint ()
#7 0x40b71b26 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#8 0x403baec3 in KIO::Job::result () from /usr/lib/libkio.so.4
#9 0x403ac8f8 in KIO::Job::emitResult () from /usr/lib/libkio.so.4
#10 0x403ad875 in KIO::SimpleJob::slotFinished () from /usr/lib/libkio.so.4
#11 0x403aecb5 in KIO::TransferJob::slotFinished () from /usr/lib/libkio.so.4
#12 0x403bc13c in KIO::TransferJob::qt_invoke () from /usr/lib/libkio.so.4
#13 0x40b71b26 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#14 0x40b71a7e in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#15 0x403a570c in KIO::SlaveInterface::finished () from /usr/lib/libkio.so.4
#16 0x403a42a4 in KIO::SlaveInterface::dispatch () from /usr/lib/libkio.so.4
#17 0x403a3df8 in KIO::SlaveInterface::dispatch () from /usr/lib/libkio.so.4
#18 0x403a2010 in KIO::Slave::gotInput () from /usr/lib/libkio.so.4
#19 0x403a3809 in KIO::Slave::qt_invoke () from /usr/lib/libkio.so.4
#20 0x40b71b26 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#21 0x40b71c34 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#22 0x40dad40b in QSocketNotifier::activated () from /usr/lib/libqt-mt.so.3
#23 0x40b87a4c in QSocketNotifier::event () from /usr/lib/libqt-mt.so.3
#24 0x40b2a773 in QApplication::internalNotify () from /usr/lib/libqt-mt.so.3

I was doing some heavy compiling at the same time.

Looks like a kernel bug / behaviour change.

All the best,

Duncan.
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