From mboxrd@z Thu Jan 1 00:00:00 1970 From: carlos palma Subject: Re: [Bug #25402] kernel (2.6.37-8-generic_amd64) panic on boot (with message "map_single: bounce buffer is not DMA'ble) - possible regression !!! Date: Sun, 09 Jan 2011 02:16:19 +0100 Message-ID: <4D290C63.9040005@ono.com> References: <96DQe4a_2tH.A.4RE.497GNB@chimera> <4D1CFA99.1070701@ono.com> <201012302351.48156.rjw@sisk.pl> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <201012302351.48156.rjw-KKrjLPT3xs0@public.gmane.org> Sender: kernel-testers-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: "Rafael J. Wysocki" Cc: Linux Kernel Mailing List , Kernel Testers List , Maciej Rutecki , Florian Mickler Hi Rafael. I've found the same bug reported in redhat (https://bugzilla.redhat.com/show_bug.cgi?id=668088). carlos On 12/30/2010 11:51 PM, Rafael J. Wysocki wrote: > On Thursday, December 30, 2010, carlos palma wrote: >> I can confirm that this "regression" still exists with the kernel >> 2.6.37-rc8. >> The Call Trace is basically the same: >> >> ... >> Kernel panic - not syncing: map_single ... >> Pid 935, comm: NetworkManager Tainted >> call trace >> panic+oxbf/0x200 >> ? default_spin_lock_flags+0x9/0x10 >> ?swiotlb_tlb_map_single+0x1ce/0x250 >> ?map_single+0x46/0x60 >> swiotlb_map_page+0xa6/0xf >> ... and then the FREEZE ... only a hard reset brings to live (with >> 2.6.36-2) Linux. > Thanks for the info. > > Why did you put "regression" into double quotes? > > Rafael >