[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] RE: BSOD in GPLPV rev928 in xennet.sys
-----Original Message----- From: Andreas Kinzler [mailto:ml-xen-devel@xxxxxx] Sent: Thursday, 9 June 2011 04:38 To: xen-devel@xxxxxxxxxxxxxxxxxxx; James Harper Subject: BSOD in GPLPV rev928 in xennet.sys Hello James, on Windows 2008 R2 SP1 I get a BSOD on GPLPV setup. After someanalyzingI found that it is a "null ptr read" in the call to NdisFreeToNPagedLookasideList. File is xennet6_tx.c line 336. length = XenNet_QueryData(&pi, coalesce_remaining); va = NdisBufferVirtualAddressSafe(pi.curr_mdl,LowPagePriority);if (!va) { KdPrint((__DRIVER_NAME " failed to map buffer va -partialsend\n")); coalesce_remaining = 0; remaining -= min(PAGE_SIZE, remaining); NdisFreeToNPagedLookasideList(&xi->tx_lookaside_list, coalesce_buf); } else {I can't see how that situation could arise without there being some memory corruption somewhere... coalesce_buf is checked for NULL before the call to NdiFreeToNPageLookasideList. Did you get the "Failed to map buffer va - partial send" message in the logs? I am not running any debuggers, I got the information from analyzing disassembled code listings and the minidump. I may have a look at debuggers (my time is somewhat limited). Would you consider the rev928 version stable? What is the latest stable version in your opinion? Regards Andreas _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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