Buildresult: powerpc-fixes/mpc5200_defconfig/powerpc-gcc4.9 built on Jan 24 2021, 23:56

kisskb

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Status:	OK
Date/Time:	Jan 24 2021, 23:56
Duration:	0:01:21.458965
Builder:	blade46
Revision:	powerpc/64s: prevent recursive replay_soft_interrupts causing superfluous interrupt (`4025c784c573cab7e3f84746cc82b8033923ec62)`
Target:	powerpc-fixes/mpc5200_defconfig/powerpc-gcc4.9
Branch:	powerpc-fixes
Compiler:	powerpc-gcc4.9 (powerpc64-linux-gcc (GCC) 4.9.4 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:	mpc5200_defconfig (download)
Log:	Download original Possible warnings (3) arch/powerpc/platforms/52xx/lite5200_sleep.S:184: Warning: invalid register expression block/genhd.c:1517:1: warning: the frame size of 1160 bytes is larger than 1024 bytes [-Wframe-larger-than=] lib/zstd/compress.c:1393:1: warning: the frame size of 1584 bytes is larger than 1024 bytes [-Wframe-larger-than=] Full Log # git rev-parse -q --verify 4025c784c573cab7e3f84746cc82b8033923ec62^{commit} 4025c784c573cab7e3f84746cc82b8033923ec62 already have revision, skipping fetch # git checkout -q -f -B kisskb 4025c784c573cab7e3f84746cc82b8033923ec62 # git clean -qxdf # < git log -1 # commit 4025c784c573cab7e3f84746cc82b8033923ec62 # Author: Nicholas Piggin <npiggin@gmail.com> # Date: Sat Jan 23 16:12:44 2021 +1000 # # powerpc/64s: prevent recursive replay_soft_interrupts causing superfluous interrupt # # When an asynchronous interrupt calls irq_exit, it checks for softirqs # that may have been created, and runs them. Running softirqs enables # local irqs, which can replay pending interrupts causing recursion in # replay_soft_interrupts. This abridged trace shows how this can occur: # # ! NIP replay_soft_interrupts # LR interrupt_exit_kernel_prepare # Call Trace: # interrupt_exit_kernel_prepare (unreliable) # interrupt_return # --- interrupt: ea0 at __rb_reserve_next # NIP __rb_reserve_next # LR __rb_reserve_next # Call Trace: # ring_buffer_lock_reserve # trace_function # function_trace_call # ftrace_call # __do_softirq # irq_exit # timer_interrupt # ! replay_soft_interrupts # interrupt_exit_kernel_prepare # interrupt_return # --- interrupt: ea0 at arch_local_irq_restore # # This can not be prevented easily, because softirqs must not block hard # irqs, so it has to be dealt with. # # The recursion is bounded by design in the softirq code because softirq # replay disables softirqs and loops around again to check for new # softirqs created while it ran, so that's not a problem. # # However it does mess up interrupt replay state, causing superfluous # interrupts when the second replay_soft_interrupts clears a pending # interrupt, leaving it still set in the first call in the 'happened' # local variable. # # Fix this by not caching a copy of irqs_happened across interrupt # handler calls. # # Fixes: 3282a3da25bd ("powerpc/64: Implement soft interrupt replay in C") # Signed-off-by: Nicholas Piggin <npiggin@gmail.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/20210123061244.2076145-1-npiggin@gmail.com # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 4025c784c573cab7e3f84746cc82b8033923ec62 # < make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc5200_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- mpc5200_defconfig # < make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc5200_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc5200_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc5200_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/arch/powerpc/platforms/52xx/lite5200_sleep.S: Assembler messages: /kisskb/src/arch/powerpc/platforms/52xx/lite5200_sleep.S:184: Warning: invalid register expression /kisskb/src/block/genhd.c: In function 'diskstats_show': /kisskb/src/block/genhd.c:1517:1: warning: the frame size of 1160 bytes is larger than 1024 bytes [-Wframe-larger-than=] } ^ /kisskb/src/lib/zstd/compress.c: In function 'ZSTD_compressBlock_doubleFast': /kisskb/src/lib/zstd/compress.c:1393:1: warning: the frame size of 1584 bytes is larger than 1024 bytes [-Wframe-larger-than=] } ^ INFO: Uncompressed kernel (size 0x8649c8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x900000) INFO: Uncompressed kernel (size 0x8649c8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x900000) INFO: Uncompressed kernel (size 0x8649c8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x900000) INFO: Uncompressed kernel (size 0x8543ec) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x900000) Image Name: Linux-5.11.0-rc2-g4025c784c573 Created: Sun Jan 24 23:57:38 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3850345 Bytes = 3760.10 KiB = 3.67 MiB Load Address: 00900000 Entry Point: 00900274 Image Name: Linux-5.11.0-rc2-g4025c784c573 Created: Sun Jan 24 23:57:38 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3820163 Bytes = 3730.63 KiB = 3.64 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.11.0-rc2-g4025c784c573 Created: Sun Jan 24 23:57:38 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3851004 Bytes = 3760.75 KiB = 3.67 MiB Load Address: 00900000 Entry Point: 00900274 Image Name: Linux-5.11.0-rc2-g4025c784c573 Created: Sun Jan 24 23:57:38 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3850909 Bytes = 3760.65 KiB = 3.67 MiB Load Address: 00900000 Entry Point: 00900274 Completed OK # rm -rf /kisskb/build/powerpc-fixes_mpc5200_defconfig_powerpc-gcc4.9 # Build took: 0:01:21.458965

© Michael Ellerman 2006-2018.