Buildresult: powerpc-next/ia64-defconfig/ia64-gcc4.6 built on Jun 15 2019, 19:05

kisskb

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Status:	OK
Date/Time:	Jun 15 2019, 19:05
Duration:	0:01:06.622208
Builder:	ka4
Revision:	powerpc/pseries/mobility: rebuild cacheinfo hierarchy post-migration (`e610a466d16a086e321f0bd421e2fc75cff28605)`
Target:	powerpc-next/ia64-defconfig/ia64-gcc4.6
Branch:	powerpc-next
Compiler:	ia64-gcc4.6 (ia64-linux-gcc (GCC) 4.6.3 / GNU ld (GNU Binutils) 2.22)
Config:	defconfig (download)
Log:	Download original Possible warnings (9) kernel/printk/printk.c:194:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] kernel/fork.c:768:13: warning: 'task_struct_whitelist' defined but not used [-Wunused-function] mm/vmstat.c:90:5: warning: 'oldval' may be used uninitialized in this function [-Wuninitialized] mm/hugetlb.c:1465:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] fs/nfsd/nfs4xdr.c:2077:9: warning: 'str' 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/udf/unicode.c:132:8: warning: 'c' 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 e610a466d16a086e321f0bd421e2fc75cff28605^{commit} e610a466d16a086e321f0bd421e2fc75cff28605 already have revision, skipping fetch # git checkout -q -f -B kisskb e610a466d16a086e321f0bd421e2fc75cff28605 # git clean -qxdf # < git log -1 # commit e610a466d16a086e321f0bd421e2fc75cff28605 # Author: Nathan Lynch <nathanl@linux.ibm.com> # Date: Tue Jun 11 23:45:06 2019 -0500 # # powerpc/pseries/mobility: rebuild cacheinfo hierarchy post-migration # # It's common for the platform to replace the cache device nodes after a # migration. Since the cacheinfo code is never informed about this, it # never drops its references to the source system's cache nodes, causing # it to wind up in an inconsistent state resulting in warnings and oopses # as soon as CPU online/offline occurs after the migration, e.g. # # cache for /cpus/l3-cache@3113(Unified) refers to cache for /cpus/l2-cache@200d(Unified) # WARNING: CPU: 15 PID: 86 at arch/powerpc/kernel/cacheinfo.c:176 release_cache+0x1bc/0x1d0 # [...] # NIP release_cache+0x1bc/0x1d0 # LR release_cache+0x1b8/0x1d0 # Call Trace: # release_cache+0x1b8/0x1d0 (unreliable) # cacheinfo_cpu_offline+0x1c4/0x2c0 # unregister_cpu_online+0x1b8/0x260 # cpuhp_invoke_callback+0x114/0xf40 # cpuhp_thread_fun+0x270/0x310 # smpboot_thread_fn+0x2c8/0x390 # kthread+0x1b8/0x1c0 # ret_from_kernel_thread+0x5c/0x68 # # Using device tree notifiers won't work since we want to rebuild the # hierarchy only after all the removals and additions have occurred and # the device tree is in a consistent state. Call cacheinfo_teardown() # before processing device tree updates, and rebuild the hierarchy # afterward. # # Fixes: 410bccf97881 ("powerpc/pseries: Partition migration in the kernel") # Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com> # Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/ia64-linux/bin/ia64-linux-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/ia64-linux/bin/ia64-linux-ld --version # < git log --format=%s --max-count=1 e610a466d16a086e321f0bd421e2fc75cff28605 # < make -s -j 40 ARCH=ia64 O=/kisskb/build/powerpc-next_ia64-defconfig_ia64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/ia64-linux/bin/ia64-linux- defconfig # make -s -j 40 ARCH=ia64 O=/kisskb/build/powerpc-next_ia64-defconfig_ia64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/ia64-linux/bin/ia64-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/fork.c:768:13: warning: 'task_struct_whitelist' defined but not used [-Wunused-function] /kisskb/src/mm/vmstat.c: In function 'sysctl_vm_numa_stat_handler': /kisskb/src/mm/vmstat.c:90:5: warning: 'oldval' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page': /kisskb/src/mm/hugetlb.c:1465:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc': /kisskb/src/fs/nfsd/nfs4xdr.c:2077:9: warning: 'str' 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/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/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:881:14: note: 'extra_uref' was declared here /kisskb/src/net/ipv4/fib_semantics.c: In function 'fib_check_nh_v4_gw': /kisskb/src/net/ipv4/fib_semantics.c:1027:12: warning: 'err' may be used uninitialized in this function [-Wuninitialized] No errors detected in 21387 functions. Kernel: vmlinux.gz is ready Completed OK # rm -rf /kisskb/build/powerpc-next_ia64-defconfig_ia64 # Build took: 0:01:06.622208

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