Buildresult: powerpc-fixes/corenet64_smp_defconfig/powerpc-gcc4.6 built on Apr 11 2018, 21:40

kisskb

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Status:	OK
Date/Time:	Apr 11 2018, 21:40
Duration:	0:01:07.706335
Builder:	ka4
Revision:	KVM: PPC: Book3S HV: trace_tlbie must not be called in realmode (`19ce7909ed11c49f7eddf59e7f49cd3062bf83d5)`
Target:	powerpc-fixes/corenet64_smp_defconfig/powerpc-gcc4.6
Branch:	powerpc-fixes
Compiler:	powerpc-gcc4.6 (powerpc-linux-gcc (GCC) 4.6.3)
Config:	corenet64_smp_defconfig (download)
Log:	Download original Possible warnings (6) drivers/base/regmap/regmap.c:2497:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] mm/hugetlb.c:1433:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:1819:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] kernel/cgroup/cgroup-v1.c:1268:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized] kernel/printk/printk.c:182:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] drivers/tty/serial/8250/8250_core.c:251:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify 19ce7909ed11c49f7eddf59e7f49cd3062bf83d5^{commit} 19ce7909ed11c49f7eddf59e7f49cd3062bf83d5 already have revision, skipping fetch # git checkout -q -f -B kisskb 19ce7909ed11c49f7eddf59e7f49cd3062bf83d5 # git clean -qxdf # < git log -1 # commit 19ce7909ed11c49f7eddf59e7f49cd3062bf83d5 # Author: Nicholas Piggin <npiggin@gmail.com> # Date: Fri Apr 6 03:56:30 2018 +1000 # # KVM: PPC: Book3S HV: trace_tlbie must not be called in realmode # # This crashes with a "Bad real address for load" attempting to load # from the vmalloc region in realmode (faulting address is in DAR). # # Oops: Bad interrupt in KVM entry/exit code, sig: 6 [#1] # LE SMP NR_CPUS=2048 NUMA PowerNV # CPU: 53 PID: 6582 Comm: qemu-system-ppc Not tainted 4.16.0-01530-g43d1859f0994 # NIP: c0000000000155ac LR: c0000000000c2430 CTR: c000000000015580 # REGS: c000000fff76dd80 TRAP: 0200 Not tainted (4.16.0-01530-g43d1859f0994) # MSR: 9000000000201003 <SF,HV,ME,RI,LE> CR: 48082222 XER: 00000000 # CFAR: 0000000102900ef0 DAR: d00017fffd941a28 DSISR: 00000040 SOFTE: 3 # NIP [c0000000000155ac] perf_trace_tlbie+0x2c/0x1a0 # LR [c0000000000c2430] do_tlbies+0x230/0x2f0 # # I suspect the reason is the per-cpu data is not in the linear chunk. # This could be restored if that was able to be fixed, but for now, # just remove the tracepoints. # # Fixes: 0428491cba92 ("powerpc/mm: Trace tlbie(l) instructions") # Cc: stable@vger.kernel.org # v4.13+ # Signed-off-by: Nicholas Piggin <npiggin@gmail.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < git log --format=%s --max-count=1 19ce7909ed11c49f7eddf59e7f49cd3062bf83d5 # < make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-fixes_corenet64_smp_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- corenet64_smp_defconfig # make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-fixes_corenet64_smp_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2497:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page': /kisskb/src/mm/hugetlb.c:1433:5: warning: 'page' 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:1819:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount': /kisskb/src/kernel/cgroup/cgroup-v1.c:1268:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:182:16: warning: 'old' 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:251:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:231:19: note: 'i' was declared here INFO: Uncompressed kernel (size 0xf10708) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x1000000) Image Name: Linux-4.16.0-g19ce790 Created: Wed Apr 11 21:41:15 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6340392 Bytes = 6191.79 kB = 6.05 MB Load Address: 00000000 Entry Point: 00000000 Completed OK # rm -rf /kisskb/build/powerpc-fixes_corenet64_smp_defconfig_powerpc # Build took: 0:01:07.706335

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