Re: data corruption with 'splt' workload to XFS on DM cache with its 3 underlying devices being on same NVMe device

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, 2018-07-24 at 08:00 +-0200, Hannes Reinecke wrote:
+AD4- So, have you tested that request-based multipathing works on a partition 
+AD4- +AF8-at all+AF8-? I'm not sure if partition mapping is done correctly here+ADs- we 
+AD4- never remap the start of the request (nor bio, come to speak of it), so 
+AD4- it looks as if we would be doing the wrong things here.
+AD4- 
+AD4- Have you checked that partition remapping is done correctly?

I think generic+AF8-make+AF8-request() takes care of partition remapping by calling
blk+AF8-partition+AF8-remap(). generic+AF8-make+AF8-request() is called by submit+AF8-bio(). Is
that sufficient to cover all dm drivers?

Bart.




[Index of Archives]     [Linux RAID]     [Linux SCSI]     [Linux ATA RAID]     [IDE]     [Linux Wireless]     [Linux Kernel]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Device Mapper]

  Powered by Linux