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From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: carlos palma <carlos.palma@ono.com>
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: Thu, 30 Dec 2010 23:51:48 +0100
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        Maciej Rutecki <maciej.rutecki@gmail.com>,
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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