Buildresult: powerpc-fixes/x86_64-defconfig/x86_64-gcc8 built on May 29 2022, 11:25

kisskb

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Status:	OK
Date/Time:	May 29 2022, 11:25
Duration:	0:00:58.362959
Builder:	ka4
Revision:	powerpc: Don't select HAVE_IRQ_EXIT_ON_IRQ_STACK (`1346d00e1bdfd4067f92bc14e8a6131a01de4190)`
Target:	powerpc-fixes/x86_64-defconfig/x86_64-gcc8
Branch:	powerpc-fixes
Compiler:	x86_64-gcc8 (x86_64-linux-gcc (GCC) 8.5.0 / GNU ld (GNU Binutils) 2.36.1)
Config:	defconfig (download)
Log:	Download original No warnings found in log. Full Log # git rev-parse -q --verify 1346d00e1bdfd4067f92bc14e8a6131a01de4190^{commit} 1346d00e1bdfd4067f92bc14e8a6131a01de4190 already have revision, skipping fetch # git checkout -q -f -B kisskb 1346d00e1bdfd4067f92bc14e8a6131a01de4190 # git clean -qxdf # < git log -1 # commit 1346d00e1bdfd4067f92bc14e8a6131a01de4190 # Author: Michael Ellerman <mpe@ellerman.id.au> # Date: Wed May 25 13:26:39 2022 +1000 # # powerpc: Don't select HAVE_IRQ_EXIT_ON_IRQ_STACK # # The HAVE_IRQ_EXIT_ON_IRQ_STACK option tells generic code that irq_exit() # is called while still running on the hard irq stack (hardirq_ctx[] in # the powerpc code). # # Selecting the option means the generic code will not switch to the # softirq stack before running softirqs, because the code is already # running on the (mostly empty) hard irq stack. # # But since commit 1b1b6a6f4cc0 ("powerpc: handle irq_enter/irq_exit in # interrupt handler wrappers"), irq_exit() is now called on the regular task # stack, not the hard irq stack. # # That's because previously irq_exit() was called in __do_irq() which is # run on the hard irq stack, but now it is called in # interrupt_async_exit_prepare() which is called from do_irq() constructed # by the wrapper macro, which is after the switch back to the task stack. # # So drop HAVE_IRQ_EXIT_ON_IRQ_STACK from the Kconfig. This will mean an # extra stack switch when processing some interrupts, but should # significantly reduce the likelihood of stack overflow. # # It also means the softirq stack will be used for running softirqs from # other interrupts that don't use the hard irq stack, eg. timer interrupts. # # Fixes: 1b1b6a6f4cc0 ("powerpc: handle irq_enter/irq_exit in interrupt handler wrappers") # Cc: stable@vger.kernel.org # v5.12+ # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/20220525032639.1947280-1-mpe@ellerman.id.au # < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version # < git log --format=%s --max-count=1 1346d00e1bdfd4067f92bc14e8a6131a01de4190 # < make -s -j 120 ARCH=x86 O=/kisskb/build/powerpc-fixes_x86_64_defconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux- x86_64_defconfig # < make -s -j 120 ARCH=x86 O=/kisskb/build/powerpc-fixes_x86_64_defconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux- help # make -s -j 120 ARCH=x86 O=/kisskb/build/powerpc-fixes_x86_64_defconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux- olddefconfig # make -s -j 120 ARCH=x86 O=/kisskb/build/powerpc-fixes_x86_64_defconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux- Completed OK # rm -rf /kisskb/build/powerpc-fixes_x86_64_defconfig_x86_64-gcc8 # Build took: 0:00:58.362959

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