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authorChristian Krinitsin <mail@krinitsin.com>2025-07-03 07:27:52 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-07-03 07:27:52 +0000
commitd0c85e36e4de67af628d54e9ab577cc3fad7796a (patch)
treef8f784b0f04343b90516a338d6df81df3a85dfa2 /results/classifier/gemma3:12b/boot/2361
parent7f4364274750eb8cb39a3e7493132fca1c01232e (diff)
downloademulator-bug-study-d0c85e36e4de67af628d54e9ab577cc3fad7796a.tar.gz
emulator-bug-study-d0c85e36e4de67af628d54e9ab577cc3fad7796a.zip
add deepseek and gemma results
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+
+-cpu host or -cpu max breaks GRUB on AMD
+Description of problem:
+I'm running the on an AMD Ryzen CPU host.  I am emulating a Debian Bookworm image stored in a raw disk.  It uses GRUB to load a large (400MB) initrd.  When ran with the flag -cpu host or -cpu max, GRUB throws an out of memory error while loading the initrd.  This doesn't occur when using -cpu kvm64 or excluding the -cpu flag.
+
+If I direct boot the initrd and kernel via -initrd and -kernel, it works fine.  The image also works with -cpu host on an Intel CPU host machine.  The image also works with -cpu EPYC.
+Steps to reproduce:
+1. Create a raw disk with a large initrd and GRUB boot loader
+2. Start a qemu machine on an AMD host 
+3. Receive an error: out of memory
+Additional information:
+I could try selectively enabling CPU features, but I was wondering if the maintainers knew of any feature that might be causing this or how to list the features -cpu host enables.
+
+I also am not 100% that this is a QEMU bug, but it seems the only way to fix it is changing the QEMU config.