Buildresult: powerpc-next/85xx/ge_imp3a_defconfig/powerpc-gcc4.6 built on Aug 20 2019, 19:57

kisskb

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Status:	OK
Date/Time:	Aug 20 2019, 19:57
Duration:	0:01:00.795563
Builder:	ka1
Revision:	powerpc/603: Fix handling of the DIRTY flag (`e8c42ba3ffd9708cc2fab3fb57deeb1604202e7e)`
Target:	powerpc-next/85xx/ge_imp3a_defconfig/powerpc-gcc4.6
Branch:	powerpc-next
Compiler:	powerpc-gcc4.6 (powerpc-linux-gcc (GCC) 4.6.3 / GNU ld (GNU Binutils) 2.22)
Config:	85xx/ge_imp3a_defconfig (download)
Log:	Download original Possible warnings (11) kernel/printk/printk.c:194:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] kernel/rcu/srcutree.c:140:32: warning: 'levelspread[<U3dc0>]' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:2591:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:1852:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] fs/nfsd/nfs4xdr.c:2065:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized] fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized] drivers/tty/serial/8250/8250_core.c:248:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] drivers/usb/core/devio.c:613:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized] drivers/net/tun.c:1831:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] drivers/net/tun.c:1744:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify e8c42ba3ffd9708cc2fab3fb57deeb1604202e7e^{commit} e8c42ba3ffd9708cc2fab3fb57deeb1604202e7e already have revision, skipping fetch # git checkout -q -f -B kisskb e8c42ba3ffd9708cc2fab3fb57deeb1604202e7e # git clean -qxdf # < git log -1 # commit e8c42ba3ffd9708cc2fab3fb57deeb1604202e7e # Author: Christophe Leroy <christophe.leroy@c-s.fr> # Date: Mon Aug 19 06:40:25 2019 +0000 # # powerpc/603: Fix handling of the DIRTY flag # # If a page is already mapped RW without the DIRTY flag, the DIRTY # flag is never set and a TLB store miss exception is taken forever. # # This is easily reproduced with the following app: # # void main(void) # { # volatile char ptr = mmap(0, 4096, PROT_READ \| PROT_WRITE, MAP_SHARED \| MAP_ANONYMOUS, -1, 0); # # ptr = *ptr; # } # # When DIRTY flag is not set, bail out of TLB miss handler and take # a minor page fault which will set the DIRTY flag. # # Fixes: f8b58c64eaef ("powerpc/603: let's handle PAGE_DIRTY directly") # Cc: stable@vger.kernel.org # v5.1+ # Reported-by: Doug Crawford <doug.crawford@intelight-its.com> # Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/80432f71194d7ee75b2f5043ecf1501cf1cca1f3.1566196646.git.christophe.leroy@c-s.fr # < /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 e8c42ba3ffd9708cc2fab3fb57deeb1604202e7e # < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_85xx_ge_imp3a_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- 85xx/ge_imp3a_defconfig # make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_85xx_ge_imp3a_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /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/rcu/srcutree.c: In function 'init_srcu_struct_fields': /kisskb/src/kernel/rcu/srcutree.c:140:32: warning: 'levelspread[<U3dc0>]' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/rcu/srcutree.c:88:6: note: 'levelspread[<U3dc0>]' was declared here /kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2591:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write': /kisskb/src/drivers/base/regmap/regmap.c:1852:6: warning: 'ret' 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/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc': /kisskb/src/fs/nfsd/nfs4xdr.c:2065:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/udf/unicode.c: In function 'udf_name_conv_char': /kisskb/src/fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq': /kisskb/src/drivers/tty/serial/8250/8250_core.c:248:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:228:19: note: 'i' was declared here /kisskb/src/drivers/usb/core/devio.c: In function 'async_completed': /kisskb/src/drivers/usb/core/devio.c:613:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c: In function 'tun_get_user': /kisskb/src/drivers/net/tun.c:1831:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c:1744:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] INFO: Uncompressed kernel (size 0x85c7a8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x900000) Image Name: Linux-5.3.0-rc2-ge8c42ba3ffd9 Created: Tue Aug 20 19:58:53 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4295049 Bytes = 4194.38 KiB = 4.10 MiB Load Address: 00000000 Entry Point: 00000000 Completed OK # rm -rf /kisskb/build/powerpc-next_85xx_ge_imp3a_defconfig_powerpc-gcc4.6 # Build took: 0:01:00.795563

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