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Diffstat (limited to 'results/classifier/118/kernel/1650')
| -rw-r--r-- | results/classifier/118/kernel/1650 | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/results/classifier/118/kernel/1650 b/results/classifier/118/kernel/1650 deleted file mode 100644 index af1d56bc..00000000 --- a/results/classifier/118/kernel/1650 +++ /dev/null @@ -1,44 +0,0 @@ -i386: 0.969 -kernel: 0.938 -x86: 0.893 -performance: 0.872 -device: 0.836 -architecture: 0.812 -graphic: 0.772 -network: 0.750 -semantic: 0.731 -debug: 0.675 -virtual: 0.643 -PID: 0.551 -vnc: 0.487 -permissions: 0.483 -hypervisor: 0.428 -mistranslation: 0.424 -TCG: 0.420 -VMM: 0.413 -risc-v: 0.390 -ppc: 0.367 -boot: 0.348 -register: 0.318 -peripherals: 0.315 -user-level: 0.299 -socket: 0.283 -KVM: 0.226 -arm: 0.209 -files: 0.130 -assembly: 0.120 - -Consider doing runtime detection of MAP_FIXED_NOREPLACE -Description of problem: -``` -qemu-i386-static: Unable to reserve 0xfffff000 bytes of virtual address space at 0x1000 (Operation not supported) for use as guest address space (check your virtual memory ulimit setting, min_mmap_addr or reserve less using -R option) -``` -strace says -``` - mmap(0x1000, 4294963200, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE|MAP_FIXED_NOREPLACE, -1, 0) = -1 EOPNOTSUPP (Operation not supported) -``` -Steps to reproduce: -1. `apt install qemu-i386-static 32subsystem` -2. `strace qemu-i386-static /opt/32/bin/as` -Additional information: -Repeating the strace call in a minimal C program gives the same errno as expected -- the kernel is only 4.4. The problem here is that qemu only does `MAP_FIXED_NOREPLACE` feature detection at build-time via a `#ifndef` and even that behavior is poorly documented. Maybe do something at runtime? |