Re: [Patch v2] skbuff: Hide GFP_ATOMIC page allocation failures fordropped packets

From: Rik van Riel
Date: Mon May 27 2013 - 13:39:26 EST


On 05/26/2013 04:19 PM, atomlin@xxxxxxxxxx wrote:
From: Aaron Tomlin <atomlin@xxxxxxxxxx>

Since v1:
- Removed unnecessary parentheses

---8<---

Failed GFP_ATOMIC allocations by the network stack result in dropped
packets, which will be received on a subsequent retransmit, and an
unnecessary, noisy warning with a kernel backtrace.

These warnings are harmless, but they still cause users to panic and
file bug reports over dropped packets. It would be better to hide the
failed allocation warnings and backtraces, and let retransmits handle
dropped packets quietly.

Yes please. Getting memory management bug reports for
dropped network packets got old years ago. Lets get
rid of those messages.

Signed-off-by: Aaron Tomlin <atomlin@xxxxxxxxxx>

Reviewed-by: Rik van Riel <riel@xxxxxxxxxx>

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/