Buildresult: powerpc-fixes/corenet_basic_defconfig/powerpc-gcc4.6 built on Jun 8 2019, 00:01

kisskb

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Status:	OK
Date/Time:	Jun 8 2019, 00:01
Duration:	0:00:25.698071
Builder:	blade4b
Revision:	powerpc/32s: fix booting with CONFIG_PPC_EARLY_DEBUG_BOOTX (`c21f5a9ed85ca3e914ca11f421677ae9ae0d04b0)`
Target:	powerpc-fixes/corenet_basic_defconfig/powerpc-gcc4.6
Branch:	powerpc-fixes
Compiler:	powerpc-gcc4.6 (powerpc-linux-gcc (GCC) 4.6.3 / GNU ld (GNU Binutils) 2.22)
Config:	corenet_basic_defconfig (download)
Log:	Download original Possible warnings (3) include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] kernel/printk/printk.c:194:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] kernel/futex.c:1658:3: warning: 'oldval' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify c21f5a9ed85ca3e914ca11f421677ae9ae0d04b0^{commit} c21f5a9ed85ca3e914ca11f421677ae9ae0d04b0 already have revision, skipping fetch # git checkout -q -f -B kisskb c21f5a9ed85ca3e914ca11f421677ae9ae0d04b0 # git clean -qxdf # < git log -1 # commit c21f5a9ed85ca3e914ca11f421677ae9ae0d04b0 # Author: Christophe Leroy <christophe.leroy@c-s.fr> # Date: Mon Jun 3 13:00:51 2019 +0000 # # powerpc/32s: fix booting with CONFIG_PPC_EARLY_DEBUG_BOOTX # # When booting through OF, setup_disp_bat() does nothing because # disp_BAT are not set. By change, it used to work because BOOTX # buffer is mapped 1:1 at address 0x81000000 by the bootloader, and # btext_setup_display() sets virt addr same as phys addr. # # But since commit 215b823707ce ("powerpc/32s: set up an early static # hash table for KASAN."), a temporary page table overrides the # bootloader mapping. # # This 0x81000000 is also problematic with the newly implemented # Kernel Userspace Access Protection (KUAP) because it is within user # address space. # # This patch fixes those issues by properly setting disp_BAT through # a call to btext_prepare_BAT(), allowing setup_disp_bat() to # properly setup BAT3 for early bootx screen buffer access. # # Reported-by: Mathieu Malaterre <malat@debian.org> # Fixes: 215b823707ce ("powerpc/32s: set up an early static hash table for KASAN.") # Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> # Tested-by: Mathieu Malaterre <malat@debian.org> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /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 c21f5a9ed85ca3e914ca11f421677ae9ae0d04b0 # < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_corenet_basic_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- corenet_basic_defconfig # make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_corenet_basic_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /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:331:21: note: 'pdeo' was declared here /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:194:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/futex.c: In function 'do_futex': /kisskb/src/kernel/futex.c:1658:3: warning: 'oldval' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/futex.c:1633:6: note: 'oldval' was declared here Completed OK # rm -rf /kisskb/build/powerpc-fixes_corenet_basic_defconfig_powerpc-gcc4.6 # Build took: 0:00:25.698071

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