Karunakar, Can you share us the detailed DHCP and WDS configuration? E.g. DHCP options / WDS Properties (DHCP). As you know, the different DHCP/WDS configuration may lead to the different PXE download process/behavior. We would like to reproduce the issue first.
>From your below debug messages, the issue seems to be triggered by >bootmgfw.Entry. Thanks, Jiaxin > -----Original Message----- > From: edk2-devel [mailto:edk2-devel-boun...@lists.01.org] On Behalf Of > Karunakar P > Sent: Thursday, May 25, 2017 2:38 PM > To: af...@apple.com; edk2-devel@lists.01.org > Cc: Ye, Ting <ting...@intel.com> > Subject: Re: [edk2] Pressing ESC from "PXE windows Boot manager" causes > ASSERT > > Hello All, > > I've added some traces to narrow down the issue. > > Once the NBP file downloaded, control will be given to it. > I've added some traces before StartImage() and after StartImage() call. > > Following are the debug messages > > // DEBUG message printed before StartImage() > // StartImage() called > wdsmgfw.Entry(100061C0) > WDS Boot Manager version 0800 > Client IP: 192.168.0.6 > Server IP: 192.168.0.1 > Server Name: WIN-8PL637590SS > Press ENTER for network boot service. > Windows Deployment Services (Server IP: 192.168.0.1) > Contacting Server (192.168.0.1): > ESC=Exit -ConvertPages: Incompatible memory types > bootmgfw.Entry(849FE1C0) > ASSERT d:\PathtoProject\MdeModulePkg\Core\Dxe\Mem\Pool.c(561): CR has > Bad Signature > > It might be Boot Loader Issue, As control is NOT coming back. > > Could you please help on this. > > Thanks, > karunakar > > -----Original Message----- > From: af...@apple.com [mailto:af...@apple.com] > Sent: Wednesday, May 24, 2017 8:39 PM > To: Karunakar P > Cc: Ye, Ting; edk2-devel@lists.01.org > Subject: Re: [edk2] Pressing ESC from "PXE windows Boot manager" causes > ASSERT > > Karunakar, > > Every Pool allocation has a header and a tail data structure that is outside > of > the user visible data. Both these structures have signatures. The ASSERT you > are seeing is a bad signature in the header so that looks like a buffer > underflow. > It could also be a use after free bug. > > Head: > POOL_HEAD > Buffer: > User Data > Tail: > POOL_TAIL > > Given the checks only happen on Free it is possible it could be a buffer > overflow > on a buffer that has not yet been freed that runs into this buffer. > > If you have a debugger dumping the memory before and after the buffer can > some times be useful. The pattern might give you some clues. > > Thanks, > > Andrew Fish > > > On May 23, 2017, at 10:16 PM, Karunakar P <karunak...@amiindia.co.in> > wrote: > > > > Hello All, > > > > The ASSERT happens in the following function > > > > /** > > Internal function to free a pool entry. > > Caller must have the memory lock held > > > > @param Buffer The allocated pool entry to free > > @param PoolType Pointer to pool type > > > > @retval EFI_INVALID_PARAMETER Buffer not valid > > @retval EFI_SUCCESS Buffer successfully freed. > > > > **/ > > EFI_STATUS > > CoreFreePoolI ( > > IN VOID *Buffer, > > OUT EFI_MEMORY_TYPE *PoolType OPTIONAL > > ) > > { > > . > > . > > ASSERT(Buffer != NULL); > > // > > // Get the head & tail of the pool entry // > > Head = CR (Buffer, POOL_HEAD, Data, POOL_HEAD_SIGNATURE); // > ASSERT happens here > > ASSERT(Head != NULL); > > . > > . > > } > > > > We are using NetworkPkg: SHA- > ef810bc807188224a752ffbcf5e7f4b651291cee > > > > I think here I'm unable attach the files. > > You can find the attached screenshots in the following Bug571 > > https://bugzilla.tianocore.org/show_bug.cgi?id=571 > > > > Thanks, > > Karunakar > > > > > > -----Original Message----- > > From: Ye, Ting [mailto:ting...@intel.com] > > Sent: Wednesday, May 24, 2017 10:29 AM > > To: Karunakar P; edk2-devel@lists.01.org > > Subject: RE: Pressing ESC from "PXE windows Boot manager" causes > > ASSERT > > > > Hi Karunakar, > > > > Sorry I did not find your attached files. Would you please send them again? > Besides that, do you mind telling us which code base are you using for PXE > boot? > Are you using some revision of EDKII main trunk or UDK release? > > > > Thanks, > > Ting > > > > -----Original Message----- > > From: edk2-devel [mailto:edk2-devel-boun...@lists.01.org] On Behalf Of > > Karunakar P > > Sent: Wednesday, May 24, 2017 12:20 PM > > To: edk2-devel@lists.01.org > > Subject: [edk2] Pressing ESC from "PXE windows Boot manager" causes > > ASSERT > > > > Hi All, > > > > We have facing an issue with PXE boot. > > [Issue] > > When ESC is pressed from Windows Boot manager during PXE boot (IPv4 or > > IPv6) system Hangs with following ASSERT > > > > ASSERT [DxeCore] \MdeModulePkg\Core\Dxe\Mem\Pool.c : CR has Bad > > Signature > > > > [Reproduction Steps] > > 1. Perform UEFI PXEv4 or UEFI PXEv6 boot 2. It will start PXE boot over > > IPv4/6 > and Downloads NBP file successfully. > > Attached the Screenshot for the same(ScreenShot1.jpg) > > > > It will Displays the info like "Press ENTER for network boot service" > > Attached Screensho(ScreenShot2.jpg) > > > > 3. Press ENTER and then press ESC immediately to see the Windows Boot > Manager Menu > > It will list the available Operating Systems > > Attached the screenshot(ScreenShot3.png) > > > > 4. Press ESC to come back to Setup or next Boot option > > > > [Result] > > System hangs with ASSERT > > > > [Expected Result] > > On pressing ESC from Windows Boot Manager, it should come back to > > setup/Next boot option in boot order > > > > Note: > > We have PXE server configured in Windows Server 2012 R2. > > > > Please look into it. > > > > > > Thanks, > > karunakar > > _______________________________________________ > > 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 > > _______________________________________________ > 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
