On Fri, Nov 30, 2007 at 07:44:04AM -0800, Roland Dreier wrote: > > Fatal DMA error! Please use 'swiotlb=force' > > ----------- cut here --------- please bite here --------- > > Kernel BUG at arch/x86_64/kernel/../../i386/kernel/pci-dma-xen.c:333 > > What is this bug being caused by? That is, what is line 333 of > pci-dma-xen.c in your source tree?
This is induced by wrong usage of DMA API (or internal Xen error), basically, bounce buffers do not have index of a page used by map_page or sync_page. Yes. Btw, what does this error message mean? [516793.417451] ib_mthca 0000:08:00.0: Catastrophic error detected: internal error [516793.417465] ib_mthca 0000:08:00.0: buf[00]: 0012f6f8 [516793.417469] ib_mthca 0000:08:00.0: buf[01]: 00000000 [516793.417472] ib_mthca 0000:08:00.0: buf[02]: 00000000 [516793.417475] ib_mthca 0000:08:00.0: buf[03]: 00000000 [516793.417478] ib_mthca 0000:08:00.0: buf[04]: 00000000 [516793.417481] ib_mthca 0000:08:00.0: buf[05]: 0012f6dc [516793.417483] ib_mthca 0000:08:00.0: buf[06]: 001b3658 [516793.417486] ib_mthca 0000:08:00.0: buf[07]: 00000000 [516793.417489] ib_mthca 0000:08:00.0: buf[08]: 00000000 [516793.417492] ib_mthca 0000:08:00.0: buf[09]: 00000000 [516793.417495] ib_mthca 0000:08:00.0: buf[0a]: 00000000 [516793.417499] ib_mthca 0000:08:00.0: buf[0b]: 00000000 [516793.417502] ib_mthca 0000:08:00.0: buf[0c]: 00000000 [516793.417505] ib_mthca 0000:08:00.0: buf[0d]: 00000000 [516793.417508] ib_mthca 0000:08:00.0: buf[0e]: 00000000 [516793.417511] ib_mthca 0000:08:00.0: buf[0f]: 00000000 -- Lukáš Hejtmánek _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
