From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from fmmailgate03.web.de ([217.72.192.234]:44810 "EHLO fmmailgate03.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1765392AbZAOSxp (ORCPT ); Thu, 15 Jan 2009 13:53:45 -0500 From: Christian Lamparter To: Artur Skawina Subject: Re: wireless-testing, p54 and sinus 154 data no longer works Date: Thu, 15 Jan 2009 19:53:49 +0100 Cc: linux-wireless@vger.kernel.org References: <494698AF.4020204@gmail.com> <496D163B.5030307@gmail.com> <496F7887.8070203@gmail.com> In-Reply-To: <496F7887.8070203@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Message-Id: <200901151953.49053.chunkeey@web.de> (sfid-20090115_195400_478489_F6895B04) Sender: linux-wireless-owner@vger.kernel.org List-ID: On Thursday 15 January 2009 18:55:19 Artur Skawina wrote: > Artur Skawina wrote: > > Artur Skawina wrote: > >>>>> reboots, but locks up after only a few packets go over the hostap driven > >>>>> p54usb device. I need the box to be up, that limits the number of tests i can > > > >> after switching from SLUB to SLAB and enabling some debugging i finally caught this: > > > > and slub debugging gave something a bit more useful: > > > > ============================================================================= > > BUG kmalloc-4096: Poison overwritten > > tried reproducing (using the old w-t/pending pull) on different machine, > but no oops or crash there... > (similar connectivity issues though, such as connecting only works > exactly once after starting hostapd, to reconnect i have to restart > hostapd) hmm, maybe Windows Mobile uses another PS mechanism, e.g WMM-PS. > Upgraded to current wireless-testing/pending on the problematic box > and almost immediately got [1]. No slab corruption this time (at least > not yet). Will switch to GFP_ATOMIC and retry w/ the new fw. > > artur yes that's a bug, p54_set_tim must use GFP_ATOMIC, do you want to post the patch? > [1]: > BUG: scheduling while atomic: named/2004/0x10000200 > Modules linked in: netconsole saa7134_empress saa6752hs lnbp21 s5h1420 saa7134 videobuf_dma_sg serio_raw budget videobuf_core tveeprom budget_ci budget_core saa7146 ttpci_eeprom ir_common [last unloaded: microcode] > Pid: 2004, comm: named Not tainted 2.6.29-rc1-00271-ge9fa6b0 #45 > Call Trace: > [] schedule+0x2a7/0x320 > [] __alloc_skb+0x34/0x110 > [] __cond_resched+0x13/0x30 > [] _cond_resched+0x2d/0x40 > [] kmem_cache_alloc+0x95/0xc0 > [] check_object+0xc4/0x230 > [] __alloc_skb+0x34/0x110 > [] p54_alloc_skb+0x71/0xf0 > [] p54_set_tim+0x3f/0xa0 > [] sta_info_set_tim_bit+0x64/0x80 Regards, Chr