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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/kvm/2975
parent7f4364274750eb8cb39a3e7493132fca1c01232e (diff)
downloadqemu-analysis-d0c85e36e4de67af628d54e9ab577cc3fad7796a.tar.gz
qemu-analysis-d0c85e36e4de67af628d54e9ab577cc3fad7796a.zip
add deepseek and gemma results
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+
+qemu-system-x86_64: VFIO_MAP_DMA failed: -22 IVSHMEM
+Description of problem:
+QEMU do not run with looking glass KVMFR and with host model cpu
+It only works when I set cpu to `Snowridge,vmx=on,fma=on,avx=on,f16c=on,hypervisor=on...` (you can see in kvm.sh)
+Steps to reproduce:
+1. I have a script ( search for 'WITH VFIO')
+Additional information:
+UPD
+Some additional debug info from GDB
+
+```
+=== vfio_listener_region_add ===
+Arguments:
+listener = 0x55555a4dd2f0
+section = 0x7fffedb389c0
+
+Section details:
+  section->offset_within_address_space: 0x382000000000
+  Memory region: 0x555558120dd0
+  Memory region name: shmmem-shmem0
+  Memory region size: 0x10000000
+  Memory region addr: 0x382000000000
+Error accessing section details: There is no member named offset.
+
+=== vfio_get_section_iova_range ENTRY ===
+Arguments:
+bcontainer = 0x55555a4dd2c0
+section = 0x7fffedb389c0
+out_iova = 0x7fffedb388b0
+out_end = 0x7fffedb388b8
+out_llend = 0x7fffedb38900
+
+Local variables at entry:
+llend = 140737181354144
+iova = 140737181354432
+
+Thread 4 "CPU 0/KVM" hit Breakpoint -96, 0x0000555555b8511a in vfio_listener_region_add (listener=0x55555a4dd2f0, 
+    section=0x7fffedb389c0) at ../../../hw/vfio/listener.c:467
+467         if (!vfio_get_section_iova_range(bcontainer, section, &iova, &end,
+(gdb) 
+Continuing.
+2025-05-20T22:46:27.819893Z qemu-system-x86_64: vfio_container_dma_map(0x55555a4dd2c0, 0x382000000000, 0x10000000, 0x7fffcffff000) = -22 (Invalid argument)
+qemu: hardware error: vfio: DMA mapping failed, unable to continue
+CPU #0:
+RAX=00000000e0000000 RBX=00000000e0608004 RCX=0000000000608004 RDX=0000000000000003
+RSI=0000000000000003 RDI=0000000000000000 RBP=000000007ef6b640 RSP=000000007ef6b5f0
+R8 =0000000000000000 R9 =000000007ef6b70f R10=0000000000000000 R11=0000000000000004
+R12=000000007ef6b800 R13=0000000000000003 R14=0000000000000000 R15=000000007ef6b7fe
+RIP=000000007e1fe2eb RFL=00000246 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=0
+
+```
+
+Tested with latest QEMU 2af4a82ab2cce3412ffc92cd4c96bd870e33bc8e same error
+```
+sudo dnf builddep qemu
+../../../configure --enable-debug
+```
+
+[ERROR-QEMU-GIT-2af4a82ab2cce3412ffc92cd4c96bd870e33bc8e.txt](/uploads/060b26f091f0391f0491ea91dbe78f6d/ERROR-QEMU-GIT-2af4a82ab2cce3412ffc92cd4c96bd870e33bc8e.txt)
+
+[ERROR-trace-iova-values.txt](/uploads/22cacf4a5cb2c91ff6375c792a25dde1/ERROR-trace-iova-values.txt)
+
+[WORKINg-trace-iova-values.txt](/uploads/d4d53c2e743cf5f2d5bf810d61b9f1e6/WORKINg-trace-iova-values.txt)
+
+
+[kvm.log.txt](/uploads/ac31eebf6e63aa6abe2498d1a4064bef/kvm.log.txt)
+
+[kvm.sh](/uploads/7f656f7cf0d623a240309ee61b024dc9/kvm.sh)