kernel-packages team mailing list archive

[Frederik Bosch <f.bosch@xxxxxxxxx>]

@jrp I have tried to discover if there were any differences between the
backup that failed and the other ones. I noticed this one thing. Before
or during backup (cannot recall exactly atm)  a 'composer install'
process was running. Composer is a php package manager. It downloads and
deploys many small files on the filesystem (download of multiple tar.gz
files that are being unpacked). This machine normally does nothing more
than serving http requests. It is the opposite of a high-load server. So
the composer process is an outlier compared to the usual operations.
Maybe this helps to reproduce the io pattern.

Thanks anyway for the work already. It makes a difference for sure. Hope
there will be a final solution anytime soon.

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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1445195

Title:
  [Hyper-V] Kernel patches for storvsc

Status in linux package in Ubuntu:
  Triaged
Status in linux source package in Precise:
  Triaged
Status in linux source package in Trusty:
  Triaged
Status in linux source package in Utopic:
  Triaged
Status in linux source package in Vivid:
  Triaged
Status in linux source package in Wily:
  Triaged

Bug description:
  Storage driver performance updates for vivid

  K. Y. Srinivasan (7):
    scsi: storvsc: Increase the ring buffer size
    scsi: storvsc: Size the queue depth based on the ringbuffer size
    scsi: storvsc: Always send on the selected outgoing channel
    scsi: storvsc: Retrieve information about the capability of the target
    scsi: storvsc: Fix a bug in copy_from_bounce_buffer()
    scsi: storvsc: Don't assume that the scatterlist is not chained
    scsi: storvsc: Set the tablesize based on the information given by the host

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