On Thu, 2014-03-20 at 15:49 -0400, Alan Stern wrote:
> On Thu, 20 Mar 2014, James Bottomley wrote:
>
> > On Thu, 2014-03-20 at 12:34 -0400, Alan Stern wrote:
> > > On Thu, 20 Mar 2014, James Bottomley wrote:
> > >
> > > > OK, so I think we have three things to do
> > > >
> > > > 1. Investig
On Thu, 20 Mar 2014, James Bottomley wrote:
> diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
> index 771c16b..c52bfb2 100644
> --- a/drivers/scsi/scsi_error.c
> +++ b/drivers/scsi/scsi_error.c
> @@ -145,14 +145,14 @@ scmd_eh_abort_handler(struct work_struct *work)
>
On Thu, 20 Mar 2014, James Bottomley wrote:
> On Thu, 2014-03-20 at 15:59 -0400, Alan Stern wrote:
> > On Thu, 20 Mar 2014, James Bottomley wrote:
> >
> > > OK, so I think we have three things to do
> > >
> > > 1. Investigate SCSI and fix it's abort state problem that's causing
> > >
On Thu, 20 Mar 2014, James Bottomley wrote:
> > I tried this patch first, because fixing the earlier bug would mask
> > this one.
> >
> > The patch sort of worked. But the first time I tried it, it failed in
> > a rather amusing way. While the second retry was running and hung,
> > scmd->result
On Thu, 2014-03-20 at 15:59 -0400, Alan Stern wrote:
> On Thu, 20 Mar 2014, James Bottomley wrote:
>
> > OK, so I think we have three things to do
> >
> > 1. Investigate SCSI and fix it's abort state problem that's causing
> > it not to send the abort second time around
> > 2. F
On Thu, 2014-03-20 at 15:48 -0400, Alan Stern wrote:
> On Thu, 20 Mar 2014, James Bottomley wrote:
>
> > On Thu, 2014-03-20 at 12:34 -0400, Alan Stern wrote:
> > > On Thu, 20 Mar 2014, James Bottomley wrote:
> > >
> > > > OK, so I think we have three things to do
> > > >
> > > > 1. Investig
On Thu, 20 Mar 2014, James Bottomley wrote:
> OK, so I think we have three things to do
>
> 1. Investigate SCSI and fix it's abort state problem that's causing
> it not to send the abort second time around
> 2. Fix usb-storage to fail a reset it can't do (i.e. device reset
>
On Thu, 20 Mar 2014, James Bottomley wrote:
> On Thu, 2014-03-20 at 12:34 -0400, Alan Stern wrote:
> > On Thu, 20 Mar 2014, James Bottomley wrote:
> >
> > > OK, so I think we have three things to do
> > >
> > > 1. Investigate SCSI and fix it's abort state problem that's causing
> > >
On Thu, 20 Mar 2014, James Bottomley wrote:
> On Thu, 2014-03-20 at 12:34 -0400, Alan Stern wrote:
> > On Thu, 20 Mar 2014, James Bottomley wrote:
> >
> > > OK, so I think we have three things to do
> > >
> > > 1. Investigate SCSI and fix it's abort state problem that's causing
> > >
On Thu, 2014-03-20 at 12:34 -0400, Alan Stern wrote:
> On Thu, 20 Mar 2014, James Bottomley wrote:
>
> > OK, so I think we have three things to do
> >
> > 1. Investigate SCSI and fix it's abort state problem that's causing
> > it not to send the abort second time around
> > 2. F
On Thu, 2014-03-20 at 12:34 -0400, Alan Stern wrote:
> On Thu, 20 Mar 2014, James Bottomley wrote:
>
> > OK, so I think we have three things to do
> >
> > 1. Investigate SCSI and fix it's abort state problem that's causing
> > it not to send the abort second time around
> > 2. F
On Thu, 20 Mar 2014, James Bottomley wrote:
> OK, so I think we have three things to do
>
> 1. Investigate SCSI and fix it's abort state problem that's causing
> it not to send the abort second time around
> 2. Fix usb-storage to fail a reset it can't do (i.e. device reset
>
On Thu, 2014-03-20 at 11:36 -0400, Alan Stern wrote:
> On Wed, 19 Mar 2014, James Bottomley wrote:
>
> > > Basically, usb-storage deadlocks when the SCSI error handler invokes
> > > the eh_device_reset_handler callback while a command is running. The
> > > command has timed out and will never com
On Wed, 19 Mar 2014, James Bottomley wrote:
> > Basically, usb-storage deadlocks when the SCSI error handler invokes
> > the eh_device_reset_handler callback while a command is running. The
> > command has timed out and will never complete normally, because the
> > device's firmware has crashed.
On Wed, 2014-03-19 at 16:31 -0400, Alan Stern wrote:
> On Wed, 19 Mar 2014, Andreas Reis wrote:
>
> > I've uploaded a dmesg with the new debugging patch to bugzilla:
> > https://bugzilla.kernel.org/attachment.cgi?id=130041
>
> Thanks. I have now managed to reproduce many of the features of this
On Wed, Mar 19, 2014 at 1:31 PM, Alan Stern wrote:
> On Wed, 19 Mar 2014, Andreas Reis wrote:
>
>> I've uploaded a dmesg with the new debugging patch to bugzilla:
>> https://bugzilla.kernel.org/attachment.cgi?id=130041
>
> Thanks. I have now managed to reproduce many of the features of this
> pro
On Wed, 19 Mar 2014, Andreas Reis wrote:
> I've uploaded a dmesg with the new debugging patch to bugzilla:
> https://bugzilla.kernel.org/attachment.cgi?id=130041
Thanks. I have now managed to reproduce many of the features of this
problem on my own computer.
James, I will need your help (or hel
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