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Diffstat (limited to 'results/classifier/deepseek-2-tmp/output/boot/1638')
| -rw-r--r-- | results/classifier/deepseek-2-tmp/output/boot/1638 | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/results/classifier/deepseek-2-tmp/output/boot/1638 b/results/classifier/deepseek-2-tmp/output/boot/1638 deleted file mode 100644 index e4bc7afb..00000000 --- a/results/classifier/deepseek-2-tmp/output/boot/1638 +++ /dev/null @@ -1,20 +0,0 @@ - -BUG: Segmentation fault when -object memory-backend-file use readonly=on, prealloc=on together -Description of problem: -Segmentation Fault while booting VM. -Steps to reproduce: -1. set qemu boot params to `-object memory-backend-file,id=mem1,readonly=on,prealloc=on,mem-path=<any-img-file>,size=4G` -2. -3. -Additional information: -It might not be a bug, probably a feature. -The reason of this segfault is: -readonly would mmap the backend file using PROT_READ, make it readonly, -but the prealloc=on would touch_pages the memory mmaped by the file. -SO the segfault happens. - -But there is no docs about this segfault condition (the readonly and prealloc cannot be used together.) - -And maybe there is a way to solve this problem, I think. -Use mmap the memory backend file to PROT_READ|PROT_WRITE at the beginnning, after touch_pages, then mprotect the memory. -change the prot to readonly if required. |