Buildresult: powerpc-next/ia64-defconfig/ia64-gcc4.6 built on Aug 25 2019, 23:52

kisskb

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Status:	OK
Date/Time:	Aug 25 2019, 23:52
Duration:	0:02:14.713728
Builder:	blade46
Revision:	powerpc/spinlocks: Fix oops in shared-processor spinlocks (`5faa15883ebc90132b58c685316de2cd24735e90)`
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) <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] kernel/printk/printk.c:194:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] mm/vmstat.c:90:5: warning: 'oldval' may be used uninitialized in this function [-Wuninitialized] kernel/fork.c:771:13: warning: 'task_struct_whitelist' defined but not used [-Wunused-function] mm/hugetlb.c:1465:5: warning: 'page' 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/usb/core/devio.c:613:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify 5faa15883ebc90132b58c685316de2cd24735e90^{commit} 5faa15883ebc90132b58c685316de2cd24735e90 already have revision, skipping fetch # git checkout -q -f -B kisskb 5faa15883ebc90132b58c685316de2cd24735e90 # git clean -qxdf # < git log -1 # commit 5faa15883ebc90132b58c685316de2cd24735e90 # Author: Christopher M. Riedl <cmr@informatik.wtf> # Date: Mon Aug 12 22:13:14 2019 -0500 # # powerpc/spinlocks: Fix oops in shared-processor spinlocks # # Booting w/ ppc64le_defconfig + CONFIG_PREEMPT results in the attached # kernel trace due to calling shared-processor spinlocks while not # running in an SPLPAR. Previously, the out-of-line spinlocks # implementations were selected based on CONFIG_PPC_SPLPAR at compile # time without a runtime shared-processor LPAR check. # # To fix, call the actual spinlock implementations from a set of common # functions, spin_yield() and rw_yield(), which check for # shared-processor LPAR during runtime and select the appropriate lock # implementation. # # BUG: Kernel NULL pointer dereference at 0x00000100 # Faulting instruction address: 0xc000000000097f88 # Oops: Kernel access of bad area, sig: 7 [#1] # LE PAGE_SIZE=64K MMU=Radix MMU=Hash PREEMPT SMP NR_CPUS=2048 NUMA PowerNV # Modules linked in: # CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.2.0-rc6-00491-g249155c20f9b #28 # NIP: c000000000097f88 LR: c000000000c07a88 CTR: c00000000015ca10 # REGS: c0000000727079f0 TRAP: 0300 Not tainted (5.2.0-rc6-00491-g249155c20f9b) # MSR: 9000000002009033 <SF,HV,VEC,EE,ME,IR,DR,RI,LE> CR: 84000424 XER: 20040000 # CFAR: c000000000c07a84 DAR: 0000000000000100 DSISR: 00080000 IRQMASK: 1 # GPR00: c000000000c07a88 c000000072707c80 c000000001546300 c00000007be38a80 # GPR04: c0000000726f0c00 0000000000000002 c00000007279c980 0000000000000100 # GPR08: c000000001581b78 0000000080000001 0000000000000008 c00000007279c9b0 # GPR12: 0000000000000000 c000000001730000 c000000000142558 0000000000000000 # GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 # GPR20: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 # GPR24: c00000007be38a80 c000000000c002f4 0000000000000000 0000000000000000 # GPR28: c000000072221a00 c0000000726c2600 c00000007be38a80 c00000007be38a80 # NIP [c000000000097f88] __spin_yield+0x48/0xa0 # LR [c000000000c07a88] __raw_spin_lock+0xb8/0xc0 # Call Trace: # [c000000072707c80] [c000000072221a00] 0xc000000072221a00 (unreliable) # [c000000072707cb0] [c000000000bffb0c] __schedule+0xbc/0x850 # [c000000072707d70] [c000000000c002f4] schedule+0x54/0x130 # [c000000072707da0] [c0000000001427dc] kthreadd+0x28c/0x2b0 # [c000000072707e20] [c00000000000c1cc] ret_from_kernel_thread+0x5c/0x70 # Instruction dump: # 4d9e0020 552a043e 210a07ff 79080fe0 0b080000 3d020004 3908b878 794a1f24 # e8e80000 7ce7502a e8e70000 38e70100 <7ca03c2c> 70a70001 78a50020 4d820020 # ---[ end trace 474d6b2b8fc5cb7e ]--- # # Fixes: 499dcd41378e ("powerpc/64s: Allocate LPPACAs individually") # Signed-off-by: Christopher M. Riedl <cmr@informatik.wtf> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/20190813031314.1828-4-cmr@informatik.wtf # < /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 5faa15883ebc90132b58c685316de2cd24735e90 # < make -s -j 32 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 32 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- <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] /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/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/kernel/fork.c:771:13: warning: 'task_struct_whitelist' defined but not used [-Wunused-function] /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/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/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] No errors detected in 21596 functions. Kernel: vmlinux.gz is ready Completed OK # rm -rf /kisskb/build/powerpc-next_ia64-defconfig_ia64 # Build took: 0:02:14.713728

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