Buildresult: powerpc-fixes/mpc85xx_defconfig/powerpc-gcc5 built on Mar 5 2020, 23:55
kisskb
Revisions
|
Branches
|
Compilers
|
Configs
|
Build Results
|
Build Failures
|
Status:
OK
Date/Time:
Mar 5 2020, 23:55
Duration:
0:02:05.224555
Builder:
ka2
Revision:
powerpc/mm: Fix missing KUAP disable in flush_coherent_icache() (
59bee45b9712c759ea4d3dcc4eff1752f3a66558)
Target:
powerpc-fixes/mpc85xx_defconfig/powerpc-gcc5
Branch:
powerpc-fixes
Compiler:
powerpc-gcc5
(powerpc64-linux-gcc (GCC) 5.5.0 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:
mpc85xx_defconfig
(
download
)
Log:
Download original
Possible warnings (3)
include/linux/err.h:22:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] arch/powerpc/boot/dts/fsl/mpc8541cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) arch/powerpc/boot/dts/fsl/mpc8555cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0)
Full Log
# git rev-parse -q --verify 59bee45b9712c759ea4d3dcc4eff1752f3a66558^{commit} 59bee45b9712c759ea4d3dcc4eff1752f3a66558 already have revision, skipping fetch # git checkout -q -f -B kisskb 59bee45b9712c759ea4d3dcc4eff1752f3a66558 # git clean -qxdf # < git log -1 # commit 59bee45b9712c759ea4d3dcc4eff1752f3a66558 # Author: Michael Ellerman <mpe@ellerman.id.au> # Date: Tue Mar 3 23:28:47 2020 +1100 # # powerpc/mm: Fix missing KUAP disable in flush_coherent_icache() # # Stefan reported a strange kernel fault which turned out to be due to a # missing KUAP disable in flush_coherent_icache() called from # flush_icache_range(). # # The fault looks like: # # Kernel attempted to access user page (7fffc30d9c00) - exploit attempt? (uid: 1009) # BUG: Unable to handle kernel data access on read at 0x7fffc30d9c00 # Faulting instruction address: 0xc00000000007232c # Oops: Kernel access of bad area, sig: 11 [#1] # LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA PowerNV # CPU: 35 PID: 5886 Comm: sigtramp Not tainted 5.6.0-rc2-gcc-8.2.0-00003-gfc37a1632d40 #79 # NIP: c00000000007232c LR: c00000000003b7fc CTR: 0000000000000000 # REGS: c000001e11093940 TRAP: 0300 Not tainted (5.6.0-rc2-gcc-8.2.0-00003-gfc37a1632d40) # MSR: 900000000280b033 <SF,HV,VEC,VSX,EE,FP,ME,IR,DR,RI,LE> CR: 28000884 XER: 00000000 # CFAR: c0000000000722fc DAR: 00007fffc30d9c00 DSISR: 08000000 IRQMASK: 0 # GPR00: c00000000003b7fc c000001e11093bd0 c0000000023ac200 00007fffc30d9c00 # GPR04: 00007fffc30d9c18 0000000000000000 c000001e11093bd4 0000000000000000 # GPR08: 0000000000000000 0000000000000001 0000000000000000 c000001e1104ed80 # GPR12: 0000000000000000 c000001fff6ab380 c0000000016be2d0 4000000000000000 # GPR16: c000000000000000 bfffffffffffffff 0000000000000000 0000000000000000 # GPR20: 00007fffc30d9c00 00007fffc30d8f58 00007fffc30d9c18 00007fffc30d9c20 # GPR24: 00007fffc30d9c18 0000000000000000 c000001e11093d90 c000001e1104ed80 # GPR28: c000001e11093e90 0000000000000000 c0000000023d9d18 00007fffc30d9c00 # NIP flush_icache_range+0x5c/0x80 # LR handle_rt_signal64+0x95c/0xc2c # Call Trace: # 0xc000001e11093d90 (unreliable) # handle_rt_signal64+0x93c/0xc2c # do_notify_resume+0x310/0x430 # ret_from_except_lite+0x70/0x74 # Instruction dump: # 409e002c 7c0802a6 3c62ff31 3863f6a0 f8010080 48195fed 60000000 48fe4c8d # 60000000 e8010080 7c0803a6 7c0004ac <7c00ffac> 7c0004ac 4c00012c 38210070 # # This path through handle_rt_signal64() to setup_trampoline() and # flush_icache_range() is only triggered by 64-bit processes that have # unmapped their VDSO, which is rare. # # flush_icache_range() takes a range of addresses to flush. In # flush_coherent_icache() we implement an optimisation for CPUs where we # know we don't actually have to flush the whole range, we just need to # do a single icbi. # # However we still execute the icbi on the user address of the start of # the range we're flushing. On CPUs that also implement KUAP (Power9) # that leads to the spurious fault above. # # We should be able to pass any address, including a kernel address, to # the icbi on these CPUs, which would avoid any interaction with KUAP. # But I don't want to make that change in a bug fix, just in case it # surfaces some strange behaviour on some CPU. # # So for now just disable KUAP around the icbi. Note the icbi is treated # as a load, so we allow read access, not write as you'd expect. # # Fixes: 890274c2dc4c ("powerpc/64s: Implement KUAP for Radix MMU") # Cc: stable@vger.kernel.org # v5.2+ # Reported-by: Stefan Berger <stefanb@linux.ibm.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/20200303235708.26004-1-mpe@ellerman.id.au # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 59bee45b9712c759ea4d3dcc4eff1752f3a66558 # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- mpc85xx_defconfig # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- In file included from /kisskb/src/include/linux/kernel.h:11:0, from /kisskb/src/include/linux/list.h:9, from /kisskb/src/include/linux/module.h:12, from /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:15: /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c: In function 'allocate_bd': /kisskb/src/include/linux/err.h:22:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) ^ /kisskb/src/include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:139:6: note: in expansion of macro 'IS_ERR_VALUE' if (IS_ERR_VALUE(fep->ring_mem_addr)) ^ /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8541cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8555cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) INFO: Uncompressed kernel (size 0xc946dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc946dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc946dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc946dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc946dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc946dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc946dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc946dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc946dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc946dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc946dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc946dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc946dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc946dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc946dc) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc83ed8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) Image Name: Linux-5.6.0-rc2-00014-g59bee45b9 Created: Thu Mar 5 23:57:12 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6173168 Bytes = 6028.48 KiB = 5.89 MiB Load Address: 00d00000 Entry Point: 00d00314 Image Name: Linux-5.6.0-rc2-00014-g59bee45b9 Created: Thu Mar 5 23:57:12 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6175564 Bytes = 6030.82 KiB = 5.89 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.6.0-rc2-00014-g59bee45b9 Created: Thu Mar 5 23:57:11 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6175563 Bytes = 6030.82 KiB = 5.89 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.6.0-rc2-00014-g59bee45b9 Created: Thu Mar 5 23:57:12 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6177073 Bytes = 6032.30 KiB = 5.89 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.6.0-rc2-00014-g59bee45b9 Created: Thu Mar 5 23:57:10 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6145494 Bytes = 6001.46 KiB = 5.86 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.6.0-rc2-00014-g59bee45b9 Created: Thu Mar 5 23:57:11 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6177054 Bytes = 6032.28 KiB = 5.89 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.6.0-rc2-00014-g59bee45b9 Created: Thu Mar 5 23:57:12 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6176058 Bytes = 6031.31 KiB = 5.89 MiB Load Address: 00d00000 Entry Point: 00d00314 Image Name: Linux-5.6.0-rc2-00014-g59bee45b9 Created: Thu Mar 5 23:57:13 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6176326 Bytes = 6031.57 KiB = 5.89 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.6.0-rc2-00014-g59bee45b9 Created: Thu Mar 5 23:57:13 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6176068 Bytes = 6031.32 KiB = 5.89 MiB Load Address: 00d00000 Entry Point: 00d00314 Image Name: Linux-5.6.0-rc2-00014-g59bee45b9 Created: Thu Mar 5 23:57:13 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6175304 Bytes = 6030.57 KiB = 5.89 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.6.0-rc2-00014-g59bee45b9 Created: Thu Mar 5 23:57:13 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6175326 Bytes = 6030.59 KiB = 5.89 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.6.0-rc2-00014-g59bee45b9 Created: Thu Mar 5 23:57:13 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6176031 Bytes = 6031.28 KiB = 5.89 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.6.0-rc2-00014-g59bee45b9 Created: Thu Mar 5 23:57:14 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6176713 Bytes = 6031.95 KiB = 5.89 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.6.0-rc2-00014-g59bee45b9 Created: Thu Mar 5 23:57:14 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6173737 Bytes = 6029.04 KiB = 5.89 MiB Load Address: 00d00000 Entry Point: 00d00314 Image Name: Linux-5.6.0-rc2-00014-g59bee45b9 Created: Thu Mar 5 23:57:13 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6175913 Bytes = 6031.17 KiB = 5.89 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.6.0-rc2-00014-g59bee45b9 Created: Thu Mar 5 23:57:14 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6173169 Bytes = 6028.49 KiB = 5.89 MiB Load Address: 00d00000 Entry Point: 00d00314 Completed OK # rm -rf /kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc-gcc5 # Build took: 0:02:05.224555
© Michael Ellerman 2006-2018.