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Jon Smirl wrote: > Most video hardware (99%) has enough memory to support double > buffering. You save it to the other buffer, display the error, and > copy it back on enter. This is possible only if the video memory management is in the kernel. Reason: userspace may also want to use double buffering, and we definitely want to allocate the "other (maybe third) buffer" somewhere in the free video memory. And allocating a lot of system RAM on oops seems to be a very bad idea (cascade of oopses may follow). Also, did anyone measure the video RAM usage during a typical Xgl session (i.e.: is there really enough free video RAM, not occupied by various caches)? Although, a Microsoft-ish "lost context, please redraw" solution has been already proposed. -- Alexander E. Patrakov - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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