Buildresult: powerpc-next/ppc6xx_defconfig/powerpc-gcc8 built on Jun 21 2019, 02:38

kisskb

Revisions | Branches | Compilers | Configs | Build Results | Build Failures |

Status:	OK
Date/Time:	Jun 21 2019, 02:38
Duration:	0:04:02.039616
Builder:	ka2
Revision:	KVM: PPC: Book3S HV: Clear pending decrementer exceptions on nested guest entry (`3c25ab35fbc8526ac0c9b298e8a78e7ad7a55479)`
Target:	powerpc-next/ppc6xx_defconfig/powerpc-gcc8
Branch:	powerpc-next
Compiler:	powerpc-gcc8 (powerpc64-linux-gcc (GCC) 8.1.0 / GNU ld (GNU Binutils) 2.30)
Config:	ppc6xx_defconfig (download)
Log:	Download original Possible warnings (2) include/sound/control.h:223:9: warning: 'speaker_vol' may be used uninitialized in this function [-Wmaybe-uninitialized] kernel/futex.c:1658:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized] Full Log # git rev-parse -q --verify 3c25ab35fbc8526ac0c9b298e8a78e7ad7a55479^{commit} 3c25ab35fbc8526ac0c9b298e8a78e7ad7a55479 already have revision, skipping fetch # git checkout -q -f -B kisskb 3c25ab35fbc8526ac0c9b298e8a78e7ad7a55479 # git clean -qxdf # < git log -1 # commit 3c25ab35fbc8526ac0c9b298e8a78e7ad7a55479 # Author: Suraj Jitindar Singh <sjitindarsingh@gmail.com> # Date: Thu Jun 20 11:46:51 2019 +1000 # # KVM: PPC: Book3S HV: Clear pending decrementer exceptions on nested guest entry # # If we enter an L1 guest with a pending decrementer exception then this # is cleared on guest exit if the guest has writtien a positive value # into the decrementer (indicating that it handled the decrementer # exception) since there is no other way to detect that the guest has # handled the pending exception and that it should be dequeued. In the # event that the L1 guest tries to run a nested (L2) guest immediately # after this and the L2 guest decrementer is negative (which is loaded # by L1 before making the H_ENTER_NESTED hcall), then the pending # decrementer exception isn't cleared and the L2 entry is blocked since # L1 has a pending exception, even though L1 may have already handled # the exception and written a positive value for it's decrementer. This # results in a loop of L1 trying to enter the L2 guest and L0 blocking # the entry since L1 has an interrupt pending with the outcome being # that L2 never gets to run and hangs. # # Fix this by clearing any pending decrementer exceptions when L1 makes # the H_ENTER_NESTED hcall since it won't do this if it's decrementer # has gone negative, and anyway it's decrementer has been communicated # to L0 in the hdec_expires field and L0 will return control to L1 when # this goes negative by delivering an H_DECREMENTER exception. # # Fixes: 95a6432ce903 ("KVM: PPC: Book3S HV: Streamlined guest entry/exit path on P9 for radix guests") # Cc: stable@vger.kernel.org # v4.20+ # Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 3c25ab35fbc8526ac0c9b298e8a78e7ad7a55479 # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc6xx_defconfig_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- ppc6xx_defconfig # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc6xx_defconfig_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- In file included from /kisskb/src/sound/ppc/pmac.h:25, from /kisskb/src/sound/ppc/awacs.c:29: /kisskb/src/sound/ppc/awacs.c: In function 'snd_pmac_awacs_init': /kisskb/src/include/sound/control.h:223:9: warning: 'speaker_vol' may be used uninitialized in this function [-Wmaybe-uninitialized] return _snd_ctl_add_slave(master, slave, 0); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /kisskb/src/sound/ppc/awacs.c:886:36: note: 'speaker_vol' was declared here struct snd_kcontrol master_vol, speaker_vol; ^~~~~~~~~~~ /kisskb/src/kernel/futex.c: In function 'do_futex': /kisskb/src/kernel/futex.c:1658:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized] return oldval == cmparg; ~~~~~~~^~~~~~~~~ /kisskb/src/kernel/futex.c:1633:6: note: 'oldval' was declared here int oldval, ret; ^~~~~~ INFO: Uncompressed kernel (size 0xbbb984) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbbb984) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbbb984) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbbb984) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbbb984) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbbb984) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbbb984) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbbb984) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbbb984) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbab26c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbbb984) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbab26c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) Image Name: Linux-5.2.0-rc2+ Created: Fri Jun 21 02:42:45 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5587714 Bytes = 5456.75 KiB = 5.33 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.2.0-rc2+ Created: Fri Jun 21 02:42:45 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5623406 Bytes = 5491.61 KiB = 5.36 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.2.0-rc2+ Created: Fri Jun 21 02:42:46 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5624071 Bytes = 5492.26 KiB = 5.36 MiB Load Address: 00c00000 Entry Point: 00c00934 Image Name: Linux-5.2.0-rc2+ Created: Fri Jun 21 02:42:46 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5623368 Bytes = 5491.57 KiB = 5.36 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.2.0-rc2+ Created: Fri Jun 21 02:42:46 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5622474 Bytes = 5490.70 KiB = 5.36 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.2.0-rc2+ Created: Fri Jun 21 02:42:46 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5624031 Bytes = 5492.22 KiB = 5.36 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.2.0-rc2+ Created: Fri Jun 21 02:42:46 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5623134 Bytes = 5491.34 KiB = 5.36 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.2.0-rc2+ Created: Fri Jun 21 02:42:47 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5622723 Bytes = 5490.94 KiB = 5.36 MiB Load Address: 00c00000 Entry Point: 00c002a4 Image Name: Linux-5.2.0-rc2+ Created: Fri Jun 21 02:42:47 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5624219 Bytes = 5492.40 KiB = 5.36 MiB Load Address: 00c00000 Entry Point: 00c00934 Completed OK # rm -rf /kisskb/build/powerpc-next_ppc6xx_defconfig_powerpc-gcc8 # Build took: 0:04:02.039616

© Michael Ellerman 2006-2018.