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Bug#805252: linux-image-4.2.0-1-amd64: I/O errors when writing to iSCSI volumes



Control: tags -1 - fixed-upstream patch
Control: notfixed -1 4.4~rc5-1~exp1

Hi,

I'm sorry, but the commit in question doesn't help. I just got around
to testing this with 4.4-1~exp1, and I verified that the sources do
indeed contain the aforementioned patch, and the problem persists. I
also tried this with the most recent upstream kernel git tree [1] and
the problem also persists there.

Using

   dd if=/dev/zero of=test.dat

it will reproducibly cause lots of I/O errors *before* the disk runs
full.

As already said in the original report, the most recent 3.16 kernel
that comes with Jessie does not show this problem, even when used
with exactly the same userland (up to date sid), there the dd
command will just create a large file until the disk is full (as
expected).

I'll ask open-iscsi upstream for some help with this, but wanted to
make sure this is properly tracked in Debian's bugtracker.

Regards,
Christian

[1] Latest commit at time of testing:
    03c21cb775a313f1ff19be59c5d02df3e3526471

    Built the custom kernel via make-kpkg, using 4.4-1~exp1's
    config as a basis and then running make oldconfig.

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