https://github.com/qemu/qemu
Revision 5f4b9013e66433e68b9f401a33e76b745f6fe7dd authored by Christian Borntraeger on 24 January 2017, 21:17:47 UTC, committed by Michael Roth on 16 March 2017, 17:10:40 UTC
Right now we reset all devices before we reset the cmma states. This
can result in the host kernel discarding guest pages that were
previously in the unused state but already contain a bios or a -kernel
file before the cmma reset has finished. This race results in random
guest crashes or hangs during very early reboot.
Fixes: 1cd4e0f6f0a6 ("s390x/cmma: clean up cmma reset")
Cc: qemu-stable@nongnu.org
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
(cherry picked from commit 1a0e4c8b02ea510508970c333ee610a90b921cbb)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
1 parent 5e40f28
Tip revision: 5f4b9013e66433e68b9f401a33e76b745f6fe7dd authored by Christian Borntraeger on 24 January 2017, 21:17:47 UTC
s390x/kvm: fix small race reboot vs. cmma
s390x/kvm: fix small race reboot vs. cmma
Tip revision: 5f4b901
| File | Mode | Size |
|---|---|---|
| audio | ||
| backends | ||
| block | ||
| bsd-user | ||
| contrib | ||
| crypto | ||
| default-configs | ||
| disas | ||
| docs | ||
| dtc @ 65cc4d2 | ||
| fpu | ||
| fsdev | ||
| gdb-xml | ||
| hw | ||
| include | ||
| io | ||
| libdecnumber | ||
| linux-headers | ||
| linux-user | ||
| migration | ||
| nbd | ||
| net | ||
| pc-bios | ||
| pixman @ 87eea99 | ||
| po | ||
| qapi | ||
| qga | ||
| qobject | ||
| qom | ||
| replay | ||
| roms | ||
| scripts | ||
| slirp | ||
| stubs | ||
| target-alpha | ||
| target-arm | ||
| target-cris | ||
| target-i386 | ||
| target-lm32 | ||
| target-m68k | ||
| target-microblaze | ||
| target-mips | ||
| target-moxie | ||
| target-openrisc | ||
| target-ppc | ||
| target-s390x | ||
| target-sh4 | ||
| target-sparc | ||
| target-tilegx | ||
| target-tricore | ||
| target-unicore32 | ||
| target-xtensa | ||
| tcg | ||
| tests | ||
| trace | ||
| ui | ||
| util | ||
| .dir-locals.el | -rw-r--r-- | 75 bytes |
| .exrc | -rw-r--r-- | 220 bytes |
| .gitignore | -rw-r--r-- | 2.0 KB |
| .gitmodules | -rw-r--r-- | 1.1 KB |
| .mailmap | -rw-r--r-- | 1.3 KB |
| .travis.yml | -rw-r--r-- | 4.3 KB |
| CODING_STYLE | -rw-r--r-- | 4.3 KB |
| COPYING | -rw-r--r-- | 17.6 KB |
| COPYING.LIB | -rw-r--r-- | 25.8 KB |
| Changelog | -rw-r--r-- | 22.6 KB |
| HACKING | -rw-r--r-- | 9.3 KB |
| LICENSE | -rw-r--r-- | 840 bytes |
| MAINTAINERS | -rw-r--r-- | 35.8 KB |
| Makefile | -rw-r--r-- | 24.1 KB |
| Makefile.objs | -rw-r--r-- | 5.3 KB |
| Makefile.target | -rw-r--r-- | 6.8 KB |
| README | -rw-r--r-- | 3.6 KB |
| VERSION | -rw-r--r-- | 6 bytes |
| accel.c | -rw-r--r-- | 4.3 KB |
| aio-posix.c | -rw-r--r-- | 12.7 KB |
| aio-win32.c | -rw-r--r-- | 10.2 KB |
| arch_init.c | -rw-r--r-- | 7.4 KB |
| async.c | -rw-r--r-- | 9.8 KB |
| atomic_template.h | -rw-r--r-- | 6.1 KB |
| balloon.c | -rw-r--r-- | 3.3 KB |
| block.c | -rw-r--r-- | 116.8 KB |
| blockdev-nbd.c | -rw-r--r-- | 4.7 KB |
| blockdev.c | -rw-r--r-- | 120.9 KB |
| blockjob.c | -rw-r--r-- | 20.2 KB |
| bootdevice.c | -rw-r--r-- | 9.2 KB |
| bt-host.c | -rw-r--r-- | 5.2 KB |
| bt-vhci.c | -rw-r--r-- | 4.5 KB |
| configure | -rwxr-xr-x | 160.3 KB |
| cpu-exec-common.c | -rw-r--r-- | 2.8 KB |
| cpu-exec.c | -rw-r--r-- | 20.8 KB |
| cpus-common.c | -rw-r--r-- | 10.1 KB |
| cpus.c | -rw-r--r-- | 43.3 KB |
| cputlb.c | -rw-r--r-- | 23.3 KB |
| device-hotplug.c | -rw-r--r-- | 2.6 KB |
| device_tree.c | -rw-r--r-- | 12.9 KB |
| disas.c | -rw-r--r-- | 11.3 KB |
| dma-helpers.c | -rw-r--r-- | 7.8 KB |
| dump.c | -rw-r--r-- | 53.2 KB |
| exec.c | -rw-r--r-- | 106.6 KB |
| gdbstub.c | -rw-r--r-- | 45.3 KB |
| hmp-commands-info.hx | -rw-r--r-- | 15.9 KB |
| hmp-commands.hx | -rw-r--r-- | 50.3 KB |
| hmp.c | -rw-r--r-- | 77.9 KB |
| hmp.h | -rw-r--r-- | 7.4 KB |
| iohandler.c | -rw-r--r-- | 3.5 KB |
| ioport.c | -rw-r--r-- | 9.0 KB |
| iothread.c | -rw-r--r-- | 5.2 KB |
| kvm-all.c | -rw-r--r-- | 64.7 KB |
| kvm-stub.c | -rw-r--r-- | 2.7 KB |
| main-loop.c | -rw-r--r-- | 13.9 KB |
| memory.c | -rw-r--r-- | 81.1 KB |
| memory_mapping.c | -rw-r--r-- | 10.5 KB |
| module-common.c | -rw-r--r-- | 113 bytes |
| monitor.c | -rw-r--r-- | 110.5 KB |
| numa.c | -rw-r--r-- | 16.4 KB |
| os-posix.c | -rw-r--r-- | 8.0 KB |
| os-win32.c | -rw-r--r-- | 3.6 KB |
| page_cache.c | -rw-r--r-- | 5.7 KB |
| qapi-schema.json | -rw-r--r-- | 126.4 KB |
| qdev-monitor.c | -rw-r--r-- | 25.2 KB |
| qdict-test-data.txt | -rw-r--r-- | 88.4 KB |
| qemu-bridge-helper.c | -rw-r--r-- | 11.0 KB |
| qemu-char.c | -rw-r--r-- | 132.1 KB |
| qemu-doc.texi | -rw-r--r-- | 92.3 KB |
| qemu-ga.texi | -rw-r--r-- | 3.2 KB |
| qemu-img-cmds.hx | -rw-r--r-- | 4.4 KB |
| qemu-img.c | -rw-r--r-- | 121.1 KB |
| qemu-img.texi | -rw-r--r-- | 25.1 KB |
| qemu-io-cmds.c | -rw-r--r-- | 57.1 KB |
| qemu-io.c | -rw-r--r-- | 15.8 KB |
| qemu-nbd.c | -rw-r--r-- | 30.6 KB |
| qemu-nbd.texi | -rw-r--r-- | 4.3 KB |
| qemu-option-trace.texi | -rw-r--r-- | 1.0 KB |
| qemu-options-wrapper.h | -rw-r--r-- | 1.0 KB |
| qemu-options.h | -rw-r--r-- | 1.4 KB |
| qemu-options.hx | -rw-r--r-- | 157.3 KB |
| qemu-seccomp.c | -rw-r--r-- | 8.9 KB |
| qemu-tech.texi | -rw-r--r-- | 12.3 KB |
| qemu-timer.c | -rw-r--r-- | 17.3 KB |
| qemu.nsi | -rw-r--r-- | 7.1 KB |
| qemu.sasl | -rw-r--r-- | 1.3 KB |
| qmp.c | -rw-r--r-- | 19.1 KB |
| qtest.c | -rw-r--r-- | 19.5 KB |
| replication.c | -rw-r--r-- | 2.5 KB |
| replication.h | -rw-r--r-- | 5.2 KB |
| rules.mak | -rw-r--r-- | 13.3 KB |
| softmmu_template.h | -rw-r--r-- | 15.2 KB |
| spice-qemu-char.c | -rw-r--r-- | 10.7 KB |
| tcg-runtime.c | -rw-r--r-- | 4.0 KB |
| tci.c | -rw-r--r-- | 36.6 KB |
| thread-pool.c | -rw-r--r-- | 9.0 KB |
| thunk.c | -rw-r--r-- | 9.0 KB |
| tpm.c | -rw-r--r-- | 7.5 KB |
| trace-events | -rw-r--r-- | 9.3 KB |
| translate-all.c | -rw-r--r-- | 64.8 KB |
| translate-all.h | -rw-r--r-- | 1.3 KB |
| translate-common.c | -rw-r--r-- | 1.7 KB |
| user-exec.c | -rw-r--r-- | 17.7 KB |
| version.rc | -rw-r--r-- | 797 bytes |
| vl.c | -rw-r--r-- | 136.3 KB |
| xen-common-stub.c | -rw-r--r-- | 334 bytes |
| xen-common.c | -rw-r--r-- | 3.8 KB |
| xen-hvm-stub.c | -rw-r--r-- | 1.2 KB |
| xen-hvm.c | -rw-r--r-- | 42.2 KB |
| xen-mapcache.c | -rw-r--r-- | 13.0 KB |
Computing file changes ...
