Messages in this thread | | | Date | Mon, 21 Jul 2008 21:34:25 +0200 | From | Ingo Molnar <> | Subject | Re: [crash] BUG: unable to handle kernel NULL pointer dereference at 0000000000000370 |
| |
* Larry Finger <Larry.Finger@lwfinger.net> wrote:
> Ingo Molnar wrote: >> * Ian Schram <ischram@telenet.be> wrote: >> >>> I was looking at this out of interest, but I'm in no way familiar >>> with the code. >> >> thanks Ian for the patch, i'll test it. >> >> Note that it was whitespace damaged, find below a tidied up version of >> the patch that i've applied to tip/out-of-tree. >> >> Ingo > > This patch may be needed to fix error handling in the hw_sim code, but > I get the crash even with that code disabled. I'm currently bisecting > to find the culprit.
ok. I just reactivated CONFIG_MAC80211_HWSIM, applied Ian's fix and the crash went away:
calling iwl4965_init+0x0/0x6c iwl4965: Intel(R) Wireless WiFi Link 4965AGN driver for Linux, 1.3.27kd iwl4965: Copyright(c) 2003-2008 Intel Corporation initcall iwl4965_init+0x0/0x6c returned 0 after 10 msecs calling init_mac80211_hwsim+0x0/0x31c mac80211_hwsim: Initializing radio 0 PM: Adding info for No Bus:hwsim0 PM: Adding info for No Bus:phy0 PM: Adding info for No Bus:wmaster0 phy0: Failed to select rate control algorithm phy0: Failed to initialize rate control algorithm PM: Removing info for No Bus:wmaster0 PM: Removing info for No Bus:phy0 mac80211_hwsim: ieee80211_register_hw failed (-2) PM: Removing info for No Bus:hwsim0 initcall init_mac80211_hwsim+0x0/0x31c returned -2 after 58 msecs initcall init_mac80211_hwsim+0x0/0x31c returned with error code -2 calling dmfe_init_module+0x0/0xea dmfe: Davicom DM9xxx net driver, version 1.36.4 (2002-01-17) initcall dmfe_init_module+0x0/0xea returned 0 after 5 msecs
So at least as far as the init_mac80211_hwsim() deinit crash goes:
Tested-by: Ingo Molnar <mingo@elte.hu>
Ingo
| |