netdev - Re: sk_lock: inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 10 Jul 2009 08:59:57 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	David Miller <davem@...emloft.net>
Cc:	fengguang.wu@...el.com, linux-kernel@...r.kernel.org,
	linux-nfs@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: sk_lock: inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-W}
	usage

On Thu, Jul 09, 2009 at 05:13:55PM -0700, David Miller wrote:
>
> I think this specific case needs more thinking.
> 
> If the allocation fails, and it's GFP_ATOMIC, we are going to yield()
> (which sleeps) and loop endlessly waiting for the allocation to
> succeed.

Indeed.  We could do one of the following:

1) Preallocate, either universally or conditinally on sk_allocation.
2) Set a bit somewhere to indicate FIN and retry the allocation as
part of retransmit.

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html