# git rev-parse -q --verify 9f159ae07f07fc540290f21937231034f554bdd7^{commit} 9f159ae07f07fc540290f21937231034f554bdd7 already have revision, skipping fetch # git checkout -q -f -B kisskb 9f159ae07f07fc540290f21937231034f554bdd7 # git clean -qxdf # < git log -1 # commit 9f159ae07f07fc540290f21937231034f554bdd7 # Merge: 5fb181cba010 7af0145067bc # Author: Linus Torvalds # Date: Sun Sep 1 11:21:57 2019 -0700 # # Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip # # Pull x86 fixes from Thomas Gleixner: # "A set of fixes for x86: # # - Fix the bogus detection of 32bit user mode for uretprobes which # caused corruption of the user return address resulting in # application crashes. In the uprobes handler in_ia32_syscall() is # obviously always returning false on a 64bit kernel. Use # user_64bit_mode() instead which works correctly. # # - Prevent large page splitting when ftrace flips RW/RO on the kernel # text which caused iTLB performance issues. Ftrace wants to be # converted to text_poke() which avoids the problem, but for now # allow large page preservation in the static protections check when # the change request spawns a full large page. # # - Prevent arch_dynirq_lower_bound() from returning 0 when the IOAPIC # is configured via device tree. In the device tree case the GSI 1:1 # mapping is meaningless therefore the lower bound which protects the # GSI range on ACPI machines is irrelevant. Return the lower bound # which the core hands to the function instead of blindly returning 0 # which causes the core to allocate the invalid virtual interupt # number 0 which in turn prevents all drivers from allocating and # requesting an interrupt. # # - Remove the bogus initialization of LDR and DFR in the 32bit bigsmp # APIC driver. That uses physical destination mode where LDR/DFR are # ignored, but the initialization and the missing clear of LDR caused # the APIC to be left in a inconsistent state on kexec/reboot. # # - Clear LDR when clearing the APIC registers so the APIC is in a well # defined state. # # - Initialize variables proper in the find_trampoline_placement() # code. # # - Silence GCC( build warning for the real mode part of the build" # # * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: # x86/mm/cpa: Prevent large page split when ftrace flips RW on kernel text # x86/build: Add -Wnoaddress-of-packed-member to REALMODE_CFLAGS, to silence GCC9 build warning # x86/boot/compressed/64: Fix missing initialization in find_trampoline_placement() # x86/apic: Include the LDR when clearing out APIC registers # x86/apic: Do not initialize LDR and DFR for bigsmp # uprobes/x86: Fix detection of 32-bit user mode # x86/apic: Fix arch_dynirq_lower_bound() bug for DT enabled machines # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version # < git log --format=%s --max-count=1 9f159ae07f07fc540290f21937231034f554bdd7 # < make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_pmac32_defconfig+KVM_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- pmac32_defconfig # Added to kconfig CONFIG_VIRTUALIZATION=y # Added to kconfig CONFIG_KVM=y # Added to kconfig CONFIG_KVM_BOOK3S_32=m # Added to kconfig # yes \n | make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_pmac32_defconfig+KVM_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- oldconfig yes: standard output: Broken pipe # make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_pmac32_defconfig+KVM_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /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/sound/ppc/awacs.c: In function 'snd_pmac_awacs_init': /kisskb/src/include/sound/control.h:208:2: warning: 'speaker_vol' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/ppc/awacs.c:873:36: note: 'speaker_vol' was declared here /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/drivers/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2591:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write': /kisskb/src/drivers/base/regmap/regmap.c:1852:6: warning: 'ret' 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/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/kernel/futex.c: In function 'do_futex': /kisskb/src/kernel/futex.c:1676:3: warning: 'oldval' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/futex.c:1651:6: note: 'oldval' was declared here /kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq': /kisskb/src/drivers/tty/serial/8250/8250_core.c:248:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:228:19: note: 'i' was declared here /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] /kisskb/src/net/mac80211/mlme.c: In function 'ieee80211_rx_mgmt_beacon': /kisskb/src/net/mac80211/mlme.c:1576:3: warning: 'pwr_level_cisco' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/mac80211/mlme.c:1533:6: note: 'pwr_level_cisco' was declared here /kisskb/src/drivers/net/tun.c: In function 'tun_get_user': /kisskb/src/drivers/net/tun.c:1834:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c:1747:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/wireless/broadcom/b43/phy_n.c: In function 'b43_nphy_rf_ctl_override_rev7': /kisskb/src/drivers/net/wireless/broadcom/b43/phy_n.c:190:21: warning: 'val_addr' may be used uninitialized in this function [-Wuninitialized] INFO: Uncompressed kernel (size 0x8c0858) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x900000) Completed OK # rm -rf /kisskb/build/linus_pmac32_defconfig+KVM_powerpc-gcc4.6 # Build took: 0:01:26.700620