Messages in this thread | | | Date | Thu, 10 Nov 2005 12:59:22 -0500 | Subject | Re: hostap interrupt problems, maintainers unresponsive - "wifi0: interrupt delivery does not seem to work" | From | Jan Harkes <> |
| |
On Wed, Nov 02, 2005 at 09:46:39AM -0800, Chip Salzenberg wrote: > Hostap 0.4.4-kernel, included with kernel 2.6.14, does not work; nor > do versions 0.3.9 nor 0.4.1 compiled separately against 2.6.14. There > seems to be a problem with interrupt delivery. Soon after the module > is installed, keystrokes and all other interrupt-driven activity pause > periodically for a LONG time (on the order of five seconds).
I am seeing similar interrupt problems, but I don't have hostap (or even a wireless network card) on my machine. For me a clear indication is the serial port overrun errors even though that port only gets a handful of interrupts per second from an attached GPS receiver. Under X, keyboard and mouse are occasionally very jerky and unreponsive.
I just rebooted with 'acpi=noirq', and I'm not seeing the serial port overrun errors anymore, it seems to have fixed, or at least mitigated the problem a bit. But I'm logged into the machine remotely at the moment, so I can't be sure if it really fixed the unresponsive keyboard/mouse issues. There are a bunch of differences in the kernel log, but one that was quite noticable was the estimated CPU speed and that the IO-APIC seems to be intialized differently.
booting 2.6.14 -------------- Nov 10 09:49:23 thegate kernel: 247 MHz processor.
booting 2.6.14 with acpi=noirq ------------------------------ Nov 10 12:36:08 thegate kernel: Detected 2807.302 MHz processor.
It actually looks like there is a whole bunch of interesting information from the early boot that got scrolled out of the printk buffer by the time klog dumps everything to kern.log. I guess I should rebuild my kernel with a larger ringbuffer.
Jan
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |