[Disksim-users] assertion failed: in disk_buffer_sector_done() (disksim_diskctlr.c:4360): currdisk->fpcheck:

[Mujtaba Tarihi]

Hello
>From what I gathered from discussions on this mailing list, this counter is
used to detect infinite loops and this is the way to deal with it when you
are running really long traces.


On Wed, Nov 20, 2013 at 7:26 PM, Tiratat Patana-anake <
tiratatp at cs.uchicago.edu> wrote:

> Solution!!!
>
> Today I found that the culprit (at least in my case) is that one of
> the IO's block count is greater than 6000.
> (6000 is the *hardcoded* number of fpcheck)
> So I changed to 65537 (disksim_diskctlr.c line 1920) and it was
> solved! (at least for now)
>
> Have you ever ran into this problem?
> Any comment on my dirty workaround?
> --
> Tiratat (Knot) Patana-anake
> ถิรธัช (น้อต) พัฒนะเอนก
>
>
> On Tue, Nov 19, 2013 at 11:12 PM, Tiratat Patana-anake
> <tiratatp at cs.uchicago.edu> wrote:
> > Hi
> >
> > Have anyone ran into this problem,
> > assertion failed: in disk_buffer_sector_done()
> > (disksim_diskctlr.c:4360): currdisk->fpcheck:
> >
> > Apparently, these is this comment in the header (disksim_disk.h),
> >   // This is a forward progress check.  There have been a number of
> >   // bugs over the years that cause the controller to get into an
> >   // infinite loop, reading the same sector or track over and over.
> >   // Every time we do a reposition, this is reset (currently
> >   // statically, should be set to the track length) and
> >   // disk_buffer_sector_done() decrements it and asserts that it
> >   // hasn't gotten to 0.
> >
> > 2 questions,
> > 1. any workaround of this bug?
> > 2. does anyone know what is this bug?
> >
> > Best regards
> > Knot
> >
> > --
> > Tiratat (Knot) Patana-anake
> > ถิรธัช (น้อต) พัฒนะเอนก
> _______________________________________________
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> Disksim-users at ece.cmu.edu
> https://sos.ece.cmu.edu/mailman/listinfo/disksim-users
>
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