Buildresult: powerpc-fixes/versatile_defconfig/arm-gcc4.6 built on May 31 2019, 01:43

kisskb

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Status:	OK
Date/Time:	May 31 2019, 01:43
Duration:	0:00:16.594683
Builder:	ka4
Revision:	powerpc/pseries: Fix xive=off command line (`d6e3af06d947d4f23b5698007e9a1a6313d2ed58)`
Target:	powerpc-fixes/versatile_defconfig/arm-gcc4.6
Branch:	powerpc-fixes
Compiler:	arm-gcc4.6 (arm-unknown-linux-gnueabi-gcc (GCC) 4.6.3 / GNU ld (GNU Binutils) 2.22)
Config:	versatile_defconfig (download)
Log:	Download original Possible warnings (6) kernel/printk/printk.c:193:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:2589:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:1850:6: 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] include/linux/skbuff.h:1406:6: warning: 'extra_uref' may be used uninitialized in this function [-Wuninitialized] net/ipv4/fib_semantics.c:1027:12: warning: 'err' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify d6e3af06d947d4f23b5698007e9a1a6313d2ed58^{commit} d6e3af06d947d4f23b5698007e9a1a6313d2ed58 already have revision, skipping fetch # git checkout -q -f -B kisskb d6e3af06d947d4f23b5698007e9a1a6313d2ed58 # git clean -qxdf # < git log -1 # commit d6e3af06d947d4f23b5698007e9a1a6313d2ed58 # Author: Greg Kurz <groug@kaod.org> # Date: Wed May 15 12:05:01 2019 +0200 # # powerpc/pseries: Fix xive=off command line # # On POWER9, if the hypervisor supports XIVE exploitation mode, the # guest OS will unconditionally requests for the XIVE interrupt mode # even if XIVE was deactivated with the kernel command line xive=off. # Later on, when the spapr XIVE init code handles xive=off, it disables # XIVE and tries to fall back on the legacy mode XICS. # # This discrepency causes a kernel panic because the hypervisor is # configured to provide the XIVE interrupt mode to the guest : # # kernel BUG at arch/powerpc/sysdev/xics/xics-common.c:135! # ... # NIP xics_smp_probe+0x38/0x98 # LR xics_smp_probe+0x2c/0x98 # Call Trace: # xics_smp_probe+0x2c/0x98 (unreliable) # pSeries_smp_probe+0x40/0xa0 # smp_prepare_cpus+0x62c/0x6ec # kernel_init_freeable+0x148/0x448 # kernel_init+0x2c/0x148 # ret_from_kernel_thread+0x5c/0x68 # # Look for xive=off during prom_init and don't ask for XIVE in this # case. One exception though: if the host only supports XIVE, we still # want to boot so we ignore xive=off. # # Similarly, have the spapr XIVE init code to looking at the interrupt # mode negotiated during CAS, and ignore xive=off if the hypervisor only # supports XIVE. # # Fixes: eac1e731b59e ("powerpc/xive: guest exploitation of the XIVE interrupt controller") # Cc: stable@vger.kernel.org # v4.20 # Reported-by: Pavithra R. Prakash <pavrampu@in.ibm.com> # Signed-off-by: Greg Kurz <groug@kaod.org> # Reviewed-by: Cédric Le Goater <clg@kaod.org> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-ld --version # < git log --format=%s --max-count=1 d6e3af06d947d4f23b5698007e9a1a6313d2ed58 # < make -s -j 120 ARCH=arm O=/kisskb/build/powerpc-fixes_versatile_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi- versatile_defconfig # make -s -j 120 ARCH=arm O=/kisskb/build/powerpc-fixes_versatile_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi- /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:193:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2589:6: 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:1850:6: 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:331:21: note: 'pdeo' was declared here /kisskb/src/net/ipv4/ip_output.c: In function '__ip_append_data': /kisskb/src/include/linux/skbuff.h:1406:6: warning: 'extra_uref' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/ipv4/ip_output.c:880:14: note: 'extra_uref' was declared here /kisskb/src/net/ipv4/fib_semantics.c: In function 'fib_create_info': /kisskb/src/net/ipv4/fib_semantics.c:1027:12: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/ipv4/fib_semantics.c:971:6: note: 'err' was declared here Completed OK # rm -rf /kisskb/build/powerpc-fixes_versatile_defconfig_arm # Build took: 0:00:16.594683

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