Hi; This patch (rediffed againg kvm-60) from Tavis Ormandy <[EMAIL PROTECTED]> fixes an infinite loop in the emulated SB16 device (See http://taviso.decsystem.org/virtsec.pdf for more details.)
I'm not sure why qemu upstream not merged these but Xen already did. [1] http://xenbits.xensource.com/xen-3.1-testing.hg?rev/4b22d472bda6 diff -ur kvm-60.orig/qemu/hw/sb16.c kvm-60/qemu/hw/sb16.c --- kvm-60.orig/qemu/hw/sb16.c 2008-01-20 14:35:04.000000000 +0200 +++ kvm-60/qemu/hw/sb16.c 2008-01-29 01:46:20.000000000 +0200 @@ -1240,8 +1240,10 @@ s->block_size); #endif - while (s->left_till_irq <= 0) { - s->left_till_irq = s->block_size + s->left_till_irq; + if (s->block_size) { + while (s->left_till_irq <= 0) { + s->left_till_irq = s->block_size + s->left_till_irq; + } } return dma_pos; Cheers -- S.Çağlar Onur <[EMAIL PROTECTED]> http://cekirdek.pardus.org.tr/~caglar/ Linux is like living in a teepee. No Windows, no Gates and an Apache in house! ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
