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Ticket #2207 (new defect)

Opened 13 years ago

Last modified 13 years ago

Lots of CRC errors, connection drops

Reported by: anonymous Assigned to:
Priority: major Milestone:
Component: madwifi: other Version: trunk
Keywords: Cc:
Patch is attached: 0 Pending: 0

Description (Last modified by mrenzmann)

I have stability problem with recent kernels 2.6.27.7 and the trunk:

I have 2 systems in parallel, both with madwifi, both same card. The stable madwifi on 32bit has a stable ping to the ap around 1/1.5ms. The trunk on 64bit system is now totally unstable.

I can notice a lot of this in the debug when problems occurs:

Dec 14 22:53:03 x2 kernel: R (ffff88007e909ce0 7e909ce0) 7e909d40 33cf90c0 00000000 00000c40 132d8074 548b0005 ERR_CRC
Dec 14 22:53:04 x2 kernel: R (ffff88007e909fe0 7e909fe0) 7e90a040 545b10c0 00000000 00000c40 131d8074 548b0005 ERR_CRC

Then connection (if still working) goes:

64 bytes from linksys (192.168.0.1): icmp_seq=708 ttl=64 time=1.69 ms
64 bytes from linksys (192.168.0.1): icmp_seq=709 ttl=64 time=1.71 ms
64 bytes from linksys (192.168.0.1): icmp_seq=710 ttl=64 time=1999 ms
64 bytes from linksys (192.168.0.1): icmp_seq=711 ttl=64 time=6836 ms
64 bytes from linksys (192.168.0.1): icmp_seq=712 ttl=64 time=9113 ms
64 bytes from linksys (192.168.0.1): icmp_seq=713 ttl=64 time=8319 ms
64 bytes from linksys (192.168.0.1): icmp_seq=714 ttl=64 time=7933 ms
64 bytes from linksys (192.168.0.1): icmp_seq=715 ttl=64 time=7957 ms
64 bytes from linksys (192.168.0.1): icmp_seq=716 ttl=64 time=6958 ms
64 bytes from linksys (192.168.0.1): icmp_seq=717 ttl=64 time=7083 ms
64 bytes from linksys (192.168.0.1): icmp_seq=718 ttl=64 time=7108 ms
64 bytes from linksys (192.168.0.1): icmp_seq=719 ttl=64 time=6926 ms
64 bytes from linksys (192.168.0.1): icmp_seq=720 ttl=64 time=6665 ms
64 bytes from linksys (192.168.0.1): icmp_seq=721 ttl=64 time=7099 ms
64 bytes from linksys (192.168.0.1): icmp_seq=722 ttl=64 time=9581 ms
64 bytes from linksys (192.168.0.1): icmp_seq=723 ttl=64 time=9605 ms
64 bytes from linksys (192.168.0.1): icmp_seq=724 ttl=64 time=9243 ms
64 bytes from linksys (192.168.0.1): icmp_seq=725 ttl=64 time=10803 ms
64 bytes from linksys (192.168.0.1): icmp_seq=726 ttl=64 time=10056 ms
64 bytes from linksys (192.168.0.1): icmp_seq=727 ttl=64 time=9357 ms
64 bytes from linksys (192.168.0.1): icmp_seq=728 ttl=64 time=9543 ms
64 bytes from linksys (192.168.0.1): icmp_seq=729 ttl=64 time=7872 ms
64 bytes from linksys (192.168.0.1): icmp_seq=730 ttl=64 time=8919 ms
64 bytes from linksys (192.168.0.1): icmp_seq=731 ttl=63 time=8636 ms
64 bytes from linksys (192.168.0.1): icmp_seq=732 ttl=63 time=8192 ms
64 bytes from linksys (192.168.0.1): icmp_seq=733 ttl=63 time=9648 ms
64 bytes from linksys (192.168.0.1): icmp_seq=734 ttl=64 time=9875 ms
64 bytes from linksys (192.168.0.1): icmp_seq=735 ttl=64 time=10501 ms
64 bytes from linksys (192.168.0.1): icmp_seq=736 ttl=64 time=9798 ms
64 bytes from linksys (192.168.0.1): icmp_seq=737 ttl=64 time=9104 ms
64 bytes from linksys (192.168.0.1): icmp_seq=738 ttl=64 time=8127 ms
64 bytes from linksys (192.168.0.1): icmp_seq=739 ttl=64 time=7216 ms
64 bytes from linksys (192.168.0.1): icmp_seq=740 ttl=64 time=2213 ms
64 bytes from linksys (192.168.0.1): icmp_seq=741 ttl=64 time=1214 ms
64 bytes from linksys (192.168.0.1): icmp_seq=742 ttl=64 time=215 ms
64 bytes from linksys (192.168.0.1): icmp_seq=743 ttl=64 time=3.36 ms
64 bytes from linksys (192.168.0.1): icmp_seq=744 ttl=64 time=2.02 ms

I don't know where to look. Doesn't seem the beacon bug as the intr are always 5/15 per sec.

Change History

12/15/08 06:51:33 changed by mrenzmann

  • description changed.

12/16/08 23:30:41 changed by anonymous

ath_pci 0000:01:07.0: PCI INT A -> Link[APC2] -> GSI 17 (level, low) -> IRQ 17
MadWifi: ath_attach: Switching rfkill capability off.
wifi0: Atheros AR2414 chip found (MAC 7.9, PHY 2112A 4.5, Radio 5.6)
ath_pci: wifi0: Atheros 5212: mem=0xf5000000, irq=17

12/17/08 01:12:45 changed by anonymous

Wrong branch. Trunk was not working branch 0.9.4.1 works.

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