From: "Wu, Hao A" <hao.a.wu@intel.com>
To: Arka Sharma <arka.sw1988@gmail.com>, "Tian, Feng" <feng.tian@intel.com>
Cc: "edk2-devel@lists.01.org" <edk2-devel@lists.01.org>
Subject: Re: NvmExpressDxe async application crash with UDK debugger
Date: Thu, 13 Apr 2017 05:46:04 +0000 [thread overview]
Message-ID: <B80AF82E9BFB8E4FBD8C89DA810C6A0931C98A54@SHSMSX104.ccr.corp.intel.com> (raw)
In-Reply-To: <CAPO=kN3GTsWrTEDBNLxyTz-XVDTgjX6cRg-wVU9+kSLCMk7-ZQ@mail.gmail.com>
Hi Arka,
I will help to look into this problem and will try to reproduce it first.
Best Regards,
Hao Wu
> -----Original Message-----
> From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of Arka
> Sharma
> Sent: Wednesday, April 12, 2017 2:05 PM
> To: Tian, Feng
> Cc: edk2-devel@lists.01.org
> Subject: Re: [edk2] NvmExpressDxe async application crash with UDK debugger
>
> Please find attached source. Also the variables to detect completion are
> not volatile. I have checked in disassembly they are fetched from memory in
> the completion loop.
>
> Regards,
> Arka
>
> On 12 Apr 2017 10:37 a.m., "Tian, Feng" <feng.tian@intel.com> wrote:
>
> > Arka,
> >
> > Could you please share us your test code?
> >
> > Thanks
> > Feng
> >
> > -----Original Message-----
> > From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of
> > Arka Sharma
> > Sent: Wednesday, April 12, 2017 12:59 PM
> > To: edk2-devel@lists.01.org
> > Subject: [edk2] NvmExpressDxe async application crash with UDK debugger
> >
> > Hi,
> >
> > I am testing async io in NvmExpressDxe. The target system is Asrock
> > Z97 which I have connected to host with serial port where UDK debugger is
> > running. So my application does following
> >
> > 1. CreateEvent
> > 2. Call Passthru
> > 3. CmdSent++;
> > 4. Repeat 1-3 until not ready from driver 5. while (CmdRecd < CmdSent); 4.
> > Close all the events.
> >
> > CmdRecvd is incremented inside EventCallback. I am allocating both CmdSent
> > and CmdRecvd and passing the address of CmdRecvd in CreateEvent. With
> this
> > I face WinDbg exception quite often and it says "Target encountered an
> > exception: Vector = 6, Error Code = 00000000".
> > I can share the application code for more clarity. I am building with /Od
> > and GenFw with --keepexceptiontable
> >
> > Regards,
> > Arka
> > _______________________________________________
> > edk2-devel mailing list
> > edk2-devel@lists.01.org
> > https://lists.01.org/mailman/listinfo/edk2-devel
> >
> _______________________________________________
> edk2-devel mailing list
> edk2-devel@lists.01.org
> https://lists.01.org/mailman/listinfo/edk2-devel
next prev parent reply other threads:[~2017-04-13 5:46 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-12 4:58 NvmExpressDxe async application crash with UDK debugger Arka Sharma
2017-04-12 5:07 ` Tian, Feng
2017-04-12 6:05 ` Arka Sharma
2017-04-13 5:46 ` Wu, Hao A [this message]
2017-04-17 12:54 ` Arka Sharma
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