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
| ||
|
Date: Mon, 17 Dec 2007 15:31:33 +0800 From: Herbert Xu <herbert@...dor.apana.org.au> To: Jarek Poplawski <jarkao2@...il.com> Cc: Andrew Morton <akpm@...ux-foundation.org>, David Miller <davem@...emloft.net>, netdev@...r.kernel.org Subject: Re: [patch 2/4] net: use mutex_is_locked() for ASSERT_RTNL() On Mon, Dec 17, 2007 at 08:26:01AM +0100, Jarek Poplawski wrote: > > Btw. #2: David Miller gave this example of ASSERT_RTNL use: > > ASSERT_RTNL(); > page = alloc_page(GFP_KERNEL); > > But isn't there a debugging duplication: it seems alloc_page() is used > in so many places and this check for GFP is/should_be there already? On some paths this may be buried a conditional. Also if you replace it with a mutex_is_locked without the may_sleep it won't catch the case that started all this, namely the promiscuous path. 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
Powered by blists - more mailing lists