On 10/28/25 14:29, Bastian Blank wrote:
The FIGETBSZ ioctl get's "int *" (pointer to 32bit integer) as argument,
not "long *" as specified in qemu. Using the correct type makes the
emulation work.
Signed-off-by: Bastian Blank <[email protected]>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/3185
Reviewed-by: Michael Tokarev <[email protected]>
(Adding Laurent to Cc:)
While applying, it'd be nice to include "linux-user: " prefix to
the subject. And the thing should definitely be picked up for the
stable series (Cc'd).
This bug has been with us since the day linux-user was implemented,
in 2003.
I can pick this one up to qemu-trivial tree, if no one objects.
Thanks,
/mjt
linux-user/ioctls.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/linux-user/ioctls.h b/linux-user/ioctls.h
index 3b41128..c87ce61 100644
--- a/linux-user/ioctls.h
+++ b/linux-user/ioctls.h
@@ -145,7 +145,7 @@
IOCTL(FITRIM, IOC_W | IOC_R, MK_PTR(MK_STRUCT(STRUCT_fstrim_range)))
#endif
- IOCTL(FIGETBSZ, IOC_R, MK_PTR(TYPE_LONG))
+ IOCTL(FIGETBSZ, IOC_R, MK_PTR(TYPE_INT))
#ifdef CONFIG_FIEMAP
IOCTL_SPECIAL(FS_IOC_FIEMAP, IOC_W | IOC_R, do_ioctl_fs_ioc_fiemap,
MK_PTR(MK_STRUCT(STRUCT_fiemap)))
