Dear, Johannes. You wrote Thursday, February 17, 2005, 9:36:28 PM: > Krzysztof Matula wrote: >> SkyStar2, kernel: 2.6.10-1.760_FC3 >> >> I'm waiting for the dvr fd with select, and then if FD_ISSET I issue a >> read() call to it. Usually it works perfectly well, but sometimes, >> especially when other thread is performing multiple repeated tunings on >> the forntend the read() blocks infinitely until the process is killed... > Open with O_NONBLOCK. >> I've observed similar behaviour on previous Fedora kernels (starting >> with the 2.4 ones). The difference is that it was necessary to >> rmmod/modprobe the skystar modules then, and now usually helps when only >> the process is restarted. >> >> Can I enable any debug messages to investigate the problem further? I >> can reproduce it easily... > It has been reported a few times that the skystar2 driver has a bug where > it stops outputting data. I assume a race in irq/dma handling, but > didn't have the time to investigate (I also don't have hardware). > You could do 'cat /proc/interrupts' to see if there are still irqs > when your read() hangs. I had similar thing, and investigate, thats STV0299B version (revision 2.6) stopping if signal is weak, and there uncorrected/corrected errors. Which revision of SS2 is used? > Johannes > _______________________________________________ > > linux-dvb@xxxxxxxxxxx > http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb -- With best regards, GlobalProof Globax Division Manager, Denys Fedoryshchenko mailto:denys@xxxxxxxxxxxxxxx
