Re: [Nbd] NBD Super Size io operations
- To: Michal Belczyk <belczyk@...1274...>
- Cc: "nbd-general@lists.sourceforge.net" <nbd-general@lists.sourceforge.net>, Paul Clements <paul.clements@...856...>, Rohan Sharma <rickyrohan14@...58...>
- Subject: Re: [Nbd] NBD Super Size io operations
- From: folkert <folkert@...421...>
- Date: Wed, 10 Apr 2013 10:12:52 +0200
- Message-id: <20130410081250.GF16945@...855...>
- In-reply-to: <20130409154216.GC67997@...1273...>
- References: <BAY403-EAS415E8D3A1CC43EB4134B824DADE0@...59...> <CAECXXi5ouWsq09pxTGzDeYP+Q6eLF4+SbBRDKShVcUXm13Oi4g@...18...> <20130401202523.GR14908@...1273...> <20130402140706.GI30504@...855...> <20130403193632.GY30504@...855...> <20130407215919.GB67997@...1273...> <CAECXXi5fiTnfgcHhmW_A84nwXUhvvCX_CZf1QLzydSG09hZ6Pw@...18...> <CAECXXi59Zea8BVLER3S9Kf=uJ3pikuUxzO1QG_wQUVQqs6axAg@...18...> <20130409154216.GC67997@...1273...>
> > If you do something like the following in nbd-client just before the
> > call to NBD_DO_IT, does this fix the problem:
> >
> >
> > + sigfillset(&block);
> > + sigdelset(&block, SIGKILL);
> > + sigprocmask(SIG_SETMASK, &block, &old);
> > if (ioctl(nbd, NBD_DO_IT) < 0)
> >
> > (block and old are sigset_t).
> >
> > Could anyone who's seeing the problem test that?
>
> I ran some benchmarks which were previously triggering this bug with
> this patch applied and the driver patch reverted and it does seem to be working
> fine.
> Folkert, you had a repro to trigger this failure set up, right?
> Could you confirm?
Will test it. I'll start the testcase now, results asap.
Folkert van Heusden
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