# git rev-parse -q --verify d966564fcdc19e13eb6ba1fbe6b8101070339c3d^{commit} d966564fcdc19e13eb6ba1fbe6b8101070339c3d already have revision, skipping fetch # git checkout -q -f -B kisskb d966564fcdc19e13eb6ba1fbe6b8101070339c3d # git clean -qxdf # git log -1 commit d966564fcdc19e13eb6ba1fbe6b8101070339c3d Author: Linus Torvalds Date: Wed Feb 8 18:08:29 2017 -0800 Revert "x86/ioapic: Restore IO-APIC irq_chip retrigger callback" This reverts commit 020eb3daaba2857b32c4cf4c82f503d6a00a67de. Gabriel C reports that it causes his machine to not boot, and we haven't tracked down the reason for it yet. Since the bug it fixes has been around for a longish time, we're better off reverting the fix for now. Gabriel says: "It hangs early and freezes with a lot RCU warnings. I bisected it down to : > Ruslan Ruslichenko (1): > x86/ioapic: Restore IO-APIC irq_chip retrigger callback Reverting this one fixes the problem for me.. The box is a PRIMERGY TX200 S5 , 2 socket , 2 x E5520 CPU(s) installed" and Ruslan and Thomas are currently stumped. Reported-and-bisected-by: Gabriel C Cc: Ruslan Ruslichenko Cc: Thomas Gleixner Cc: stable@kernel.org # for the backport of the original commit Signed-off-by: Linus Torvalds # < /opt/cross/kisskb/gcc-4.6.3-nolibc/bfin-uclinux/bin/bfin-uclinux-gcc --version # < git log --format=%s --max-count=1 d966564fcdc19e13eb6ba1fbe6b8101070339c3d # < make -j 48 ARCH=blackfin O=/home/kisskb/slave/build/linus_TCM-BF518_defconfig_bfin CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/bfin-uclinux/bin/bfin-uclinux- TCM-BF518_defconfig # make -j 48 ARCH=blackfin O=/home/kisskb/slave/build/linus_TCM-BF518_defconfig_bfin CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/bfin-uclinux/bin/bfin-uclinux- make[1]: Entering directory '/home/kisskb/slave/build/linus_TCM-BF518_defconfig_bfin' GEN ./Makefile scripts/kconfig/conf --silentoldconfig Kconfig CHK include/config/kernel.release GEN ./Makefile WRAP arch/blackfin/include/generated/asm/auxvec.h WRAP arch/blackfin/include/generated/asm/bugs.h WRAP arch/blackfin/include/generated/asm/bitsperlong.h WRAP arch/blackfin/include/generated/asm/current.h WRAP arch/blackfin/include/generated/asm/cputime.h WRAP arch/blackfin/include/generated/asm/device.h WRAP arch/blackfin/include/generated/asm/div64.h WRAP arch/blackfin/include/generated/asm/emergency-restart.h WRAP arch/blackfin/include/generated/asm/errno.h WRAP arch/blackfin/include/generated/asm/fb.h WRAP arch/blackfin/include/generated/asm/hw_irq.h WRAP arch/blackfin/include/generated/asm/futex.h WRAP arch/blackfin/include/generated/asm/ipcbuf.h WRAP arch/blackfin/include/generated/asm/irq_work.h WRAP arch/blackfin/include/generated/asm/irq_regs.h WRAP arch/blackfin/include/generated/asm/kdebug.h WRAP arch/blackfin/include/generated/asm/ioctl.h WRAP arch/blackfin/include/generated/asm/mman.h WRAP arch/blackfin/include/generated/asm/kmap_types.h WRAP arch/blackfin/include/generated/asm/kvm_para.h WRAP arch/blackfin/include/generated/asm/local.h WRAP arch/blackfin/include/generated/asm/local64.h WRAP arch/blackfin/include/generated/asm/mcs_spinlock.h WRAP arch/blackfin/include/generated/asm/mm-arch-hooks.h WRAP arch/blackfin/include/generated/asm/sembuf.h WRAP arch/blackfin/include/generated/asm/serial.h WRAP arch/blackfin/include/generated/asm/shmparam.h WRAP arch/blackfin/include/generated/asm/msgbuf.h WRAP arch/blackfin/include/generated/asm/socket.h WRAP arch/blackfin/include/generated/asm/termbits.h WRAP arch/blackfin/include/generated/asm/shmbuf.h WRAP arch/blackfin/include/generated/asm/topology.h WRAP arch/blackfin/include/generated/asm/setup.h WRAP arch/blackfin/include/generated/asm/types.h WRAP arch/blackfin/include/generated/asm/resource.h WRAP arch/blackfin/include/generated/asm/unaligned.h WRAP arch/blackfin/include/generated/asm/preempt.h WRAP arch/blackfin/include/generated/asm/word-at-a-time.h WRAP arch/blackfin/include/generated/asm/termios.h WRAP arch/blackfin/include/generated/asm/trace_clock.h WRAP arch/blackfin/include/generated/asm/ucontext.h WRAP arch/blackfin/include/generated/asm/user.h WRAP arch/blackfin/include/generated/asm/xor.h WRAP arch/blackfin/include/generated/asm/statfs.h WRAP arch/blackfin/include/generated/asm/pgalloc.h WRAP arch/blackfin/include/generated/asm/param.h WRAP arch/blackfin/include/generated/asm/percpu.h CHK include/generated/uapi/linux/version.h WRAP arch/blackfin/include/generated/asm/sockios.h UPD include/generated/uapi/linux/version.h HOSTCC scripts/basic/bin2c UPD include/config/kernel.release Using /home/kisskb/slave/src as source for kernel CHK include/generated/utsrelease.h UPD include/generated/utsrelease.h HOSTCC scripts/conmakehash HOSTCC scripts/kallsyms CC scripts/mod/empty.o HOSTCC scripts/mod/mk_elfconfig CC scripts/mod/devicetable-offsets.s cc1: error: -mcpu=bf518-0.1 has invalid silicon revision cc1: error: unrecognized command line option '-mcpu=bf518-0.1' /home/kisskb/slave/src/scripts/Makefile.build:294: recipe for target 'scripts/mod/empty.o' failed make[3]: *** [scripts/mod/empty.o] Error 1 make[3]: *** Waiting for unfinished jobs.... cc1: error: -mcpu=bf518-0.1 has invalid silicon revision cc1: error: unrecognized command line option '-mcpu=bf518-0.1' /home/kisskb/slave/src/scripts/Makefile.build:154: recipe for target 'scripts/mod/devicetable-offsets.s' failed make[3]: *** [scripts/mod/devicetable-offsets.s] Error 1 CHK include/generated/timeconst.h CC kernel/bounds.s cc1: error: -mcpu=bf518-0.1 has invalid silicon revision cc1: error: unrecognized command line option '-mcpu=bf518-0.1' UPD include/generated/timeconst.h /home/kisskb/slave/src/./Kbuild:45: recipe for target 'kernel/bounds.s' failed make[2]: *** [kernel/bounds.s] Error 1 make[2]: *** Waiting for unfinished jobs.... /home/kisskb/slave/src/Makefile:1033: recipe for target 'prepare0' failed make[1]: *** [prepare0] Error 2 make[1]: *** Waiting for unfinished jobs.... /home/kisskb/slave/src/scripts/Makefile.build:553: recipe for target 'scripts/mod' failed make[2]: *** [scripts/mod] Error 2 make[2]: *** Waiting for unfinished jobs.... /home/kisskb/slave/src/Makefile:560: recipe for target 'scripts' failed make[1]: *** [scripts] Error 2 make[1]: Leaving directory '/home/kisskb/slave/build/linus_TCM-BF518_defconfig_bfin' Makefile:150: recipe for target 'sub-make' failed make: *** [sub-make] Error 2 Command 'make -j 48 ARCH=blackfin O=/home/kisskb/slave/build/linus_TCM-BF518_defconfig_bfin CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/bfin-uclinux/bin/bfin-uclinux- ' returned non-zero exit status 2 # rm -rf /home/kisskb/slave/build/linus_TCM-BF518_defconfig_bfin # Build took: 0:00:03.487061