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: Tue, 18 Dec 2007 11:43:44 +0000 From: Gerrit Renker <gerrit@....abdn.ac.uk> To: Herbert Xu <herbert@...dor.apana.org.au> Cc: netdev@...r.kernel.org Subject: Re: [PATCH 3/3] [UDP6]: Counter increment on BH mode | | I didn't hear any objections so here is the patch again. | | [SNMP]: Fix SNMP counters with PREEMPT | I don't feel competent to say whether this is correct, but it seems that this is going a long way towards resolving older problems with the SNMP counters. What I can say is that a year ago, when doing the UDP/-Lite work, I found that the counters were not accurate, which was due to the double-counting problem that Wang Chen brought up again. Resolving this issue was stalled at that time due to the fact that a counter may be incremented on one CPU and then later decremented on another. It looks as if this work is reaching the cause of the problem, which would be good since the problem propagates to all users of such counters (UDP, UDP-Lite, and similar MIB counters). So thank you for taking this issue up, I hope that this will lead to a patch set resolving the counter issues. Best regards, Gerrit -- 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