diff options
Diffstat (limited to 'results/classifier/deepseek-2-tmp/output/mistranslation/1728116')
| -rw-r--r-- | results/classifier/deepseek-2-tmp/output/mistranslation/1728116 | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/results/classifier/deepseek-2-tmp/output/mistranslation/1728116 b/results/classifier/deepseek-2-tmp/output/mistranslation/1728116 deleted file mode 100644 index f9541309..00000000 --- a/results/classifier/deepseek-2-tmp/output/mistranslation/1728116 +++ /dev/null @@ -1,48 +0,0 @@ - -Empty /proc/self/auxv (linux-user) - -The userspace Linux API virtualization used to fake access to /proc/self/auxv, to provide meaningful data for the guest process. - -For newer qemu versions, this fails: The openat() is intercepted, but there's no content: /proc/self/auxv has length zero (i.e. reading from it returns 0 bytes). - -Good: - -$ x86_64-linux-user/qemu-x86_64 /usr/bin/cat /proc/self/auxv | wc -c -256 /proc/self/auxv - -Bad: - -$ x86_64-linux-user/qemu-x86_64 /usr/bin/cat /proc/self/auxv | wc -c -0 /proc/self/auxv - -This worked in 2.7.1, and fails in 2.10.1. - -This causes e.g. any procps-ng-based tool to segfault while reading from /proc/self/auxv in an endless loop (probably worth another bug report...) - -Doing a "git bisect" shows that this commit: https://github.com/qemu/qemu/commit/7c4ee5bcc introduced the problem. - -It might be a simple logic (subtraction in the wrong direction?) or sign-ness error: Adding some logging (to v2.10.1) - -diff --git a/linux-user/syscall.c b/linux-user/syscall.c -index 9b6364a..49285f9 100644 ---- a/linux-user/syscall.c -+++ b/linux-user/syscall.c -@@ -7469,6 +7469,9 @@ static int open_self_auxv(void *cpu_env, int fd) - abi_ulong len = ts->info->auxv_len; - char *ptr; - -+ gemu_log(TARGET_ABI_FMT_lu"\n", len); -+ gemu_log(TARGET_ABI_FMT_ld"\n", len); -+ - /* - * Auxiliary vector is stored in target process stack. - * read in whole auxv vector and copy it to file - -shows this output: - -$ x86_64-linux-user/qemu-x86_64 /usr/bin/cat /proc/self/auxv | wc -c -18446744073709551264 --352 -0 - -And 352 could be the expected length. \ No newline at end of file |
