https://bugs.freedesktop.org/show_bug.cgi?id=32033
Summary: [r300g] valgrind Syscall param ioctl(generic) points to uninitialised byte(s) ioctl (syscall-template.S:82) Product: Mesa Version: git Platform: x86 (IA32) OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: Drivers/Gallium/r300 AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: vlee@vmware.com
mesa: de3ff5af49369d187d88e5399f388c6e48c5384f (master)
chipset: RV530 71C5 (ATI Radeon X1600) system architecture: i686 libdrm-dev: 2.4.21-1ubuntu2.1 kernel version: 2.6.35-23-generic Linux distribution: Ubuntu 10.10 i386
This valgrind error appears with any piglit test.
$ valgrind --track-origins=yes ./bin/crash-cubemap-order -auto ==29125== Memcheck, a memory error detector ==29125== Copyright (C) 2002-2010, and GNU GPL'd, by Julian Seward et al. ==29125== Using Valgrind-3.6.0.SVN-Debian and LibVEX; rerun with -h for copyright info ==29125== Command: ./bin/crash-cubemap-order -auto ==29125== radeon: Successfully grabbed chipset info from kernel! radeon: DRM version: 2.5.0 ID: 0x71c5 GB: 1 Z: 2 radeon: GART size: 509 MB VRAM size: 128 MB radeon: HyperZ: NO ==29125== Syscall param ioctl(generic) points to uninitialised byte(s) ==29125== at 0x43BEF49: ioctl (syscall-template.S:82) ==29125== by 0x4478B3A: drmCommandWriteRead (in /lib/libdrm.so.2.4.0) ==29125== by 0x570BE5D: radeon_cs_manager_gem_ctor (radeon_cs_gem.c:526) ==29125== by 0x4BE3357: radeon_setup_winsys (radeon_r300.c:271) ==29125== by 0x4BE296E: r300_drm_winsys_screen_create (radeon_drm.c:203) ==29125== by 0x4BE1E35: create_screen (target.c:13) ==29125== by 0x530C06C: dri2_init_screen (dri2.c:524) ==29125== by 0x4CFE5E2: dri2CreateNewScreen (dri_util.c:875) ==29125== by 0x407482F: dri2CreateScreen (dri2_glx.c:819) ==29125== by 0x404F131: __glXInitialize (glxext.c:760) ==29125== by 0x404C26E: glXGetFBConfigs (glxcmds.c:1530) ==29125== by 0x404E402: glXChooseFBConfig (glxcmds.c:1490) ==29125== Address 0xbebdfad4 is on thread 1's stack ==29125== Uninitialised value was created by a stack allocation ==29125== at 0x570BDE3: radeon_cs_manager_gem_ctor (radeon_cs_gem.c:532)