diff options
Diffstat (limited to 'results/classifier/zero-shot/108/other/1894071')
| -rw-r--r-- | results/classifier/zero-shot/108/other/1894071 | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/results/classifier/zero-shot/108/other/1894071 b/results/classifier/zero-shot/108/other/1894071 new file mode 100644 index 000000000..ca6e1c7a9 --- /dev/null +++ b/results/classifier/zero-shot/108/other/1894071 @@ -0,0 +1,128 @@ +other: 0.912 +permissions: 0.847 +performance: 0.836 +graphic: 0.836 +semantic: 0.832 +KVM: 0.817 +device: 0.814 +debug: 0.802 +PID: 0.792 +network: 0.775 +vnc: 0.761 +socket: 0.750 +files: 0.743 +boot: 0.727 + +qemu-i386-static ioctl return -14 (Bad Address) + +I use qemu-i386-static on 64 bit ARM.But I don't know how to solve some problems. +First I added some ioctl operations. +Then I tried to do some DRM operations like test.c. +This is successful when I use qemu-x86_64-static,but it failed when I use qemu-i386-static. +I can get some strace info like this: + +403 openat(AT_FDCWD,"/dev/dri/card0",O_RDWR|O_LARGEFILE|O_CLOEXEC) = 4 +403 ioctl(4,DRM_IOCTL_GET_CAP,{1,0}) = 0 ({1,1}) +403 ioctl(4,DRM_IOCTL_MODE_GETRESOURCES,{0,0,0,0,0,0,0,0,0,0,0,0}) = 0 ({0,0,0,0,0,2,2,2,0,16384,0,16384}) +403 brk(NULL) = 0x40006000 +403 brk(0x40027000) = 0x40027000 +403 brk(0x40028000) = 0x40028000 +403 ioctl(4,DRM_IOCTL_MODE_GETRESOURCES,{0,1073766816,1073766832,1073766848,0,2,2,2,0,16384,0,16384}) = -1 errno=14 (Bad address) + +And there are similar errors in other self driven operations. +I want to know if it is QEMU's problem, so I hope to get some help. +Thank you! + + + + + + + + + + + +This problem has bothered me for a long time, but I'm not sure whether it's the IOCTL () I added or the QEMU with 32 bits. I hope we can discuss it and help our friends who have other problems. + +Thank you,my friends! + +My environment is that: +schroot + debian(bullseye-i386) +qemu: 5.1.0-rc3 + +Please, send your patches to the QEMU devel mailing list, so we can review them and comment. + +https://wiki.qemu.org/Contribute/SubmitAPatch + +Hi,I found some problems, but I don't know if how to solve it better(I'm not really familiar with the source code). + +When I use ioctl() and use a structure like this: + +struct drm_mode_card_res { + __u64 fb_id_ptr; + __u64 crtc_id_ptr; + __u64 connector_id_ptr; + __u64 encoder_id_ptr; + __u32 count_fbs; + .... +}; + +Look,"fb_id_ptr" is a pointer,and apply for memory allocation through malloc.But I use qemu-i386 on 64 bit ARM.As a result, my pointer has no problem in QEMU, but it is wrong when I use ioctl(bad address).This address is actually an address in QEMU, but it is not the correct address in a 64 bit machine. +Is there any better way to solve this problem? + + + +Hi,I found some problems, but I don't know if how to solve it better(I'm not really familiar with the source code). + +When I use ioctl() and use a structure like this: + +struct drm_mode_card_res { + __u64 fb_id_ptr; + __u64 crtc_id_ptr; + __u64 connector_id_ptr; + __u64 encoder_id_ptr; + __u32 count_fbs; + .... +}; +And in syscall_types.h +STRUCT(drm_mode_card_res, + TYPE_PTRVOID, + TYPE_PTRVOID, + TYPE_PTRVOID, + TYPE_PTRVOID, + TYPE_INT, + ... + ) +Some code: + ... + if (res.count_fbs) { + res.fb_id_ptr = VOID2U64(drmMalloc(res.count_fbs*sizeof(uint32_t))); + if (!res.fb_id_ptr) + goto err_allocs; + } + ... + +This is strace: +openat(AT_FDCWD,"/dev/dri/card0",O_RDWR|O_LARGEFILE|O_CLOEXEC) = 4 +9469 ioctl(4,DRM_IOCTL_GET_CAP,{1,0}) = 0 ({1,1}) +9469 ioctl(4,DRM_IOCTL_MODE_GETRESOURCES,{0x0,0x0,0x0,0x0,0,0,0,0,0,0,0,0}) = 0 ({0x0,0x0,0x0,0x0,0,2,2,2,0,16384,0,16384}) +9469 brk(NULL) = 0x40006000 +9469 brk(0x40027000) = 0x40027000 +9469 brk(0x40028000) = 0x40028000 +9469 ioctl(4,DRM_IOCTL_MODE_GETRESOURCES,{0x0,0x0,0x400061a0,0x0,0,2,1073832368,0,0,16384,0,16384}) = -1 errno=14 (Bad address) +9469 brk(0x40027000) = 0x40027000 + +Look +9469 ioctl(4,DRM_IOCTL_MODE_GETRESOURCES,{0x0,0x0,0x400061a0,0x0,0,2,1073832368,0,0,16384,0,16384}) = -1 errno=14 (Bad address) + +Why does memory overrun occur here??? +I think this is right: +{0x0,0x400061a0,1073832368(0x400061a0),0x400061c0,0,2,2,2,0,16384,0,16384} + +Who can help me? Thank you! + +You need to use IOCTL_SPECIAL() or STRUCT_SPECIAL() macro to convert the target address to the host address. + +Again, share your patches on the qemu-devel mailing list if you want help. + |