Buildresult: powerpc-fixes/mpc885_ads_defconfig+HUGETLB/powerpc-gcc4.6 built on Dec 14 2019, 09:44

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Status:	OK
Date/Time:	Dec 14 2019, 09:44
Duration:	0:00:44.462247
Builder:	blade46
Revision:	powerpc: Fix __clear_user() with KUAP enabled (`d04cb29a7ef9e90cb0e4f16953f2d7484a9a48fb)`
Target:	powerpc-fixes/mpc885_ads_defconfig+HUGETLB/powerpc-gcc4.6
Branch:	powerpc-fixes
Compiler:	powerpc-gcc4.6 (powerpc-linux-gcc (GCC) 4.6.3 / GNU ld (GNU Binutils) 2.22)
Config:	mpc885_ads_defconfig+HUGETLB (download)
Log:	Download original Possible warnings (6) mm/hugetlb.c:1377:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] WARNING: vmlinux.o(.text+0xbca8): Section mismatch in reference from the function mmu_mark_initmem_nx() to the function .init.text:mmu_mapin_ram_chunk() WARNING: vmlinux.o(.text+0xbcc0): Section mismatch in reference from the function mmu_mark_initmem_nx() to the function .init.text:mmu_mapin_ram_chunk() WARNING: vmlinux.o(.text+0xbcd8): Section mismatch in reference from the function mmu_mark_initmem_nx() to the function .init.text:mmu_mapin_ram_chunk() Full Log # git rev-parse -q --verify d04cb29a7ef9e90cb0e4f16953f2d7484a9a48fb^{commit} d04cb29a7ef9e90cb0e4f16953f2d7484a9a48fb already have revision, skipping fetch # git checkout -q -f -B kisskb d04cb29a7ef9e90cb0e4f16953f2d7484a9a48fb # git clean -qxdf # < git log -1 # commit d04cb29a7ef9e90cb0e4f16953f2d7484a9a48fb # Author: Andrew Donnellan <ajd@linux.ibm.com> # Date: Tue Dec 10 00:22:21 2019 +1100 # # powerpc: Fix __clear_user() with KUAP enabled # # The KUAP implementation adds calls in clear_user() to enable and disable # access to userspace memory. However, it doesn't add these to # __clear_user(), which is used in the ptrace regset code. # # As there's only one direct user of __clear_user(), and the time taken to # set the AMR for KUAP purposes is going to dominate the cost of a quick # access_ok(), there's not much point having a separate path. # # Rename __clear_user() to clear_user_asm(), and make __clear_user() just # call clear_user(). # # Reported-by: syzbot+f25ecf4b2982d8c7a640@syzkaller-ppc64.appspotmail.com # Reported-by: Daniel Axtens <dja@axtens.net> # Suggested-by: Michael Ellerman <mpe@ellerman.id.au> # Fixes: de78a9c42a79 ("powerpc: Add a framework for Kernel Userspace Access Protection") # Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/20191209132221.15328-1-ajd@linux.ibm.com # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version # < git log --format=%s --max-count=1 d04cb29a7ef9e90cb0e4f16953f2d7484a9a48fb # < make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc885_ads_defconfig+HUGETLB_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- mpc885_ads_defconfig # Added to kconfig CONFIG_HUGETLBFS=y # yes \n \| make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc885_ads_defconfig+HUGETLB_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- oldconfig yes: standard output: Broken pipe # make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc885_ads_defconfig+HUGETLB_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page': /kisskb/src/mm/hugetlb.c:1377:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:338:21: note: 'pdeo' was declared here /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] WARNING: vmlinux.o(.text+0xbca8): Section mismatch in reference from the function mmu_mark_initmem_nx() to the function .init.text:mmu_mapin_ram_chunk() The function mmu_mark_initmem_nx() references the function __init mmu_mapin_ram_chunk(). This is often because mmu_mark_initmem_nx lacks a __init annotation or the annotation of mmu_mapin_ram_chunk is wrong. WARNING: vmlinux.o(.text+0xbcc0): Section mismatch in reference from the function mmu_mark_initmem_nx() to the function .init.text:mmu_mapin_ram_chunk() The function mmu_mark_initmem_nx() references the function __init mmu_mapin_ram_chunk(). This is often because mmu_mark_initmem_nx lacks a __init annotation or the annotation of mmu_mapin_ram_chunk is wrong. WARNING: vmlinux.o(.text+0xbcd8): Section mismatch in reference from the function mmu_mark_initmem_nx() to the function .init.text:mmu_mapin_ram_chunk() The function mmu_mark_initmem_nx() references the function __init mmu_mapin_ram_chunk(). This is often because mmu_mark_initmem_nx lacks a __init annotation or the annotation of mmu_mapin_ram_chunk is wrong. Image Name: Linux-5.5.0-rc1-gd04cb29a7ef9 Created: Sat Dec 14 09:45:06 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 1781281 Bytes = 1739.53 KiB = 1.70 MiB Load Address: 00400000 Entry Point: 004001dc Completed OK # rm -rf /kisskb/build/powerpc-fixes_mpc885_ads_defconfig+HUGETLB_powerpc-gcc4.6 # Build took: 0:00:44.462247

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