Rafael,
> If, for any reason, userland shuts down iscsi transport interfaces
> before proper logouts - like when logging in to LUNs manually, without
> logging out on server shutdown, or when automated scripts can't
> umount/logout from logged LUNs - kernel will hang forever on its
> sd_sync_cach
On 12/07/2017 01:59 PM, Rafael David Tinoco wrote:
> If, for any reason, userland shuts down iscsi transport interfaces
> before proper logouts - like when logging in to LUNs manually,
> without logging out on server shutdown, or when automated scripts
> can't umount/logout from logged LUNs - ker
Hello Lee,
I saw there was a reply from Lee to googlegroups
(https://goo.gl/x8LhFm). I haven't responded before because I was
subscribed only to linux-scsi@, my bad.
Yes, it worked as expected.
>From your question:
> Rafael:
> Did you test this change, i.e. shutdowns no longer hang, under test
> If, for any reason, userland shuts down iscsi transport interfaces
> before proper logouts - like when logging in to LUNs manually, without
> logging out on server shutdown, or when automated scripts can't
> umount/logout from logged LUNs - kernel will hang forever on its
> sd_sync_cache() logic
Hello Bart,
I am returning BLK_EH_HANDLED in iscsi_eh_cmd_timed_out(). Do you mean
something different ?
That paragraph means that I have tried to return BLK_EH_NOT_HANDLED first,
because that would be the other option instead of BLK_EH_RESET_TIMER (which is
causing this issue), but if I did
On Thu, 2017-12-07 at 19:59 -0200, Rafael David Tinoco wrote:
> This happens because iscsi_eh_cmd_timed_out(), the transport layer
> timeout helper, would tell the queue timeout function (scsi_times_out)
> to reset the request timer over and over, until the session state is
> back to logged in stat
Lee, Chris,
Some test results.
- Single unmounted disk, with transport connection wiped before final logout:
http://pastebin.ubuntu.com/26139576/
- Multiple mounted disks, multipath dev-mapper, all transport connections were
wiped before the final logout, with heavy write workload:
http://pas
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