[ltp] Re: Timeout with IBM minipci cvs atheros and 2.6

Loic Minier linux-thinkpad@linux-thinkpad.org
Sun, 25 Apr 2004 22:41:53 +0200


Alexander Gran <alex@zodiac.dnsalias.org> - Thu, Apr 22, 2004:

> yes. at this point the card is beeing reinit by the driver, which takes ca. 
> 10s.

 Indeed.

 Right now, I've turned off acpi, cpufreq and anything related to
 system/cpu states that could confuse ath drivers, result: did not help
 at all.

 The ath0 interface works fine as long as I don't traffic too much, if I
 do:

64 bytes from 138.195.130.72: icmp_seq=105 ttl=52 time=27.4 ms
64 bytes from 138.195.130.72: icmp_seq=106 ttl=52 time=9060.3 ms
64 bytes from 138.195.130.72: icmp_seq=107 ttl=52 time=8060.5 ms
64 bytes from 138.195.130.72: icmp_seq=108 ttl=52 time=7060.4 ms
64 bytes from 138.195.130.72: icmp_seq=109 ttl=52 time=6059.7 ms
64 bytes from 138.195.130.72: icmp_seq=110 ttl=52 time=5060.1 ms
64 bytes from 138.195.130.72: icmp_seq=111 ttl=52 time=4059.4 ms
64 bytes from 138.195.130.72: icmp_seq=112 ttl=52 time=3059.3 ms
64 bytes from 138.195.130.72: icmp_seq=113 ttl=52 time=2060.1 ms
64 bytes from 138.195.130.72: icmp_seq=114 ttl=52 time=1053.9 ms
64 bytes from 138.195.130.72: icmp_seq=115 ttl=52 time=54.0 ms

 ath0 is not so badly placed in interrupts:
  0:     250068          XT-PIC  timer
  1:        495          XT-PIC  i8042
  2:          0          XT-PIC  cascade
  3:       1095          XT-PIC  irda0
  5:          0          XT-PIC  ehci_hcd
  8:          4          XT-PIC  rtc
  9:       1352          XT-PIC  uhci_hcd, uhci_hcd, ath0
 10:      10491          XT-PIC  uhci_hcd, yenta, eth0, radeon@PCI:1:0:0
 11:          0          XT-PIC  Intel 82801DB-ICH4, Intel 82801DB-ICH4 Modem, yenta
 12:      13330          XT-PIC  i8042
 14:       8233          XT-PIC  ide0
 15:        196          XT-PIC  ide1

 => 4th interrupt position if you consider cascading.

 I simply don't get why it won't work (or how it could work somewhere
 else).

-- 
Loïc Minier <lool@dooz.org>