[DRBD-user] bio_clone() critical kernel data corruption bug

Bernd Schubert bernd-schubert at gmx.de
Fri Aug 5 14:19:28 CEST 2005

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


I just saw on the raid-list a rather critical bug that might be interesting 
for drbd as well:


There's also a bug fix from Andrew Morton:


A quick grep in the drbd sources showes that drbd uses this function, so I 
suggest people check if there kernel is affected. Referring to Andrew Morton 
2.6.9 is not, but is, I didn't find a description when this bug went 
into the kernel. Well, I just took a look myself, 2.6.10 seems not affected, 
but definitely is, so I guess this bug first came in with 2.6.11.

As we are using drbd, lvm and raid1 (well not all together), I will update our 
server as fast as possible.


Bernd Schubert
PCI / Theoretische Chemie
Universität Heidelberg
INF 229
69120 Heidelberg

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