In message: <[EMAIL PROTECTED]> Sam Leffler <[EMAIL PROTECTED]> writes: : M. Warner Losh wrote: : > In message: <[EMAIL PROTECTED]> : > Christian Brueffer <[EMAIL PROTECTED]> writes: : > : On Thu, Mar 30, 2006 at 04:25:45AM +0000, Warner Losh wrote: : > : > imp 2006-03-30 04:25:45 UTC : > : > : > : > FreeBSD src repository : > : > : > : > Modified files: : > : > sys/dev/pccbb pccbb.c : > : > Log: : > : > On some laptops, under very high loads, the socket event register read : > : > in the ISR doesn't read the actual socket event register, but instead : > : > reads garbage (usually 0xffffffff, but other times other things). : > : > This totally violates the PCI spec, but happens rarely enough that a : > : > workaround is in order. This adds one test when we have a real : > : > interrupt to service (which is very rare), and doesn't affect the : > : > usualy 'nothing to see here' case at all. : > : > : > : > Problem reported by many, but sam@ gave me this workaround after : > : > diagnosing the problem. : > : > : > : : > : This breaks pccard/cardbus support on my Thinkpad T41p (confirmed by : > : backing this change out). With this change, I just get an "Interrupt : > : storm detected on irq 5; throttling" message. : > : : > : What kind of debug info can I provide? : > : > A Thinkpad T41p. :-) : > : > Failing that, can you set hw.cbb.debug=1 and provide me with the : > output. : : We should just back this out until we can resolve the issue. For other : folks: the change was originally done for an hp nx6125 laptop where : running a wireless card in monitor mode would cause spontaneous : interface detach's under load. It sounds like the root cause is elsewhere.
OK. Warner _______________________________________________ cvs-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/cvs-all To unsubscribe, send any mail to "[EMAIL PROTECTED]"