Re: recent disk-related breakage

2016-01-11 Thread Colin Percival
On 01/11/16 09:32, Roger Pau Monné wrote: > El 11/01/16 a les 7.47, Colin Percival ha escrit: >> I'm rather suspicious of r292255 here -- royger, hps, kib, can any of you >> comment on whether it would be responsible for making non-page-aligned I/Os >> no longer get split on page boundaries? The c

Re: recent disk-related breakage

2016-01-11 Thread Roger Pau Monné
El 11/01/16 a les 7.47, Colin Percival ha escrit: > I'm rather suspicious of r292255 here -- royger, hps, kib, can any of you > comment on whether it would be responsible for making non-page-aligned I/Os > no longer get split on page boundaries? The commit message is suggestive, > but I don't know

Re: recent disk-related breakage

2016-01-10 Thread Colin Percival
I'm rather suspicious of r292255 here -- royger, hps, kib, can any of you comment on whether it would be responsible for making non-page-aligned I/Os no longer get split on page boundaries? The commit message is suggestive, but I don't know the code very well. (If I don't hear back I'll determine

recent disk-related breakage

2016-01-10 Thread Colin Percival
Some time in early December, disk I/O broke. The EC2 image built from r291495 works fine; the EC2 image built from r292413 is broken. Symptoms: 1. growfs reports "superblock not recognized" 2. fsck reports lots of "UNKNOWN FILE TYPE"s and after a few seconds provokes "panic: XEN disk driver data