Bug 1018 – Kernel BUG at ipw3945.c:9984

Bug 1018 - Kernel BUG at ipw3945.c:9984

Summary:

Kernel BUG at ipw3945.c:9984

Status:	VERIFIED FIXED

Product:	IPW3945
Component:	Data Transfer
Version:	0.0.74
Platform:	IBM All

Importance:	P1 major
Assigned To:	James Ketrenos
QA Contact:

URL:
Keywords:

Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2006-04-19 14:23 by bugzilla@eric.barkie.net
Modified:	2006-04-21 01:37 (History)

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Description From bugzilla@eric.barkie.net 2006-04-19 14:23:09

Under heavy load I'm getting a kernel panic which looks to be occuring at the
end of is_duplicate_packet():

BUG_ON(!(fc & IEEE80211_FCTL_RETRY));

I noticed that the ipw2200 driver has a similar statement commented out with the
following explanation:

        /* Comment this line now since we observed the card receives
         * duplicate packets but the FCTL_RETRY bit is not set in the
         * IBSS mode with fragmentation enabled.
         BUG_ON(!(le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_RETRY)); */

Is it safe to just comment this out?  Is there any other testing I can do to
help you debug this? Thanks...

------- Comment #1 From James Ketrenos 2006-04-20 07:33:41 -------

BUG_ON removed in next snapshot.  Setting to fixed.

Thanks,
James

------- Comment #2 From bugzilla@eric.barkie.net 2006-04-20 09:20:22 -------

Thanks for addressing this bug (and my previous one) so quickly.

I'm happy to report that Ubuntu 6.06+ieee80211 1.1.13+NetworkManager
0.6.2+wpa_supplicant 0.4.8 seems rock solid now.  I've been running for 16+
hours without missing a beat where previously I couldn't go more than ~2 hours
without a panic.