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 !!!

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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


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