Juergen Gross
3d995568c9
xen/balloon: add late_initcall_sync() for initial ballooning done ...
commit 40fdea0284bb20814399da0484a658a96c735d90 upstream.
When running as PVH or HVM guest with actual memory < max memory the
hypervisor is using "populate on demand" in order to allow the guest
to balloon down from its maximum memory size. For this to work
correctly the guest must not touch more memory pages than its target
memory size as otherwise the PoD cache will be exhausted and the guest
is crashed as a result of that.
In extreme cases ballooning down might not be finished today before
the init process is started, which can consume lots of memory.
In order to avoid random boot crashes in such cases, add a late init
call to wait for ballooning down having finished for PVH/HVM guests.
Warn on console if initial ballooning fails, panic() after stalling
for more than 3 minutes per default. Add a module parameter for
changing this timeout.
[boris: replaced pr_info() with pr_notice()]
Cc: <stable@vger.kernel.org>
Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20211102091944.17487-1-jgross@suse.com
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-11-17 09:48:25 +01:00
evm: Refuse EVM_ALLOW_METADATA_WRITES only if an HMAC key is loaded
2021-07-14 16:53:08 +02:00
xen/balloon: add late_initcall_sync() for initial ballooning done
2021-11-17 09:48:25 +01:00
ARM: 9012/1: move device tree mapping out of linear region
2021-05-19 10:08:32 +02:00
userfaultfd: do not untag user pointers
2021-07-28 13:31:01 +02:00
docs: block: null_blk: enhance document style
2019-09-11 16:04:22 -06:00
XArray: add xas_split
2021-06-10 13:37:14 +02:00
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2019-09-18 12:11:14 -07:00
mm, page_owner: decouple freeing stack trace from debug_pagealloc
2019-10-14 15:04:00 -07:00
regulator: dt-bindings: samsung,s5m8767: correct s5m8767,pmic-buck-default-dvs-idx property
2021-11-17 09:48:22 +01:00
ata: make qc_prep return ata_completion_errors
2020-10-01 13:18:26 +02:00
fbdev: fix numbering of fbcon options
2020-02-24 08:36:42 +01:00
It's a somewhat calmer cycle for docs this time, as the churn of the mass
2019-09-17 16:22:26 -07:00
sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output
2021-03-07 12:20:48 +01:00
Documentation: fpga: dfl: add descriptions for virtualization and new interfaces.
2019-09-03 19:35:42 -07:00
hwmon: (max31790) Fix pwmX_enable attributes
2021-07-14 16:53:14 +02:00
Documentation/infiniband: update name of some functions
2019-09-13 16:55:55 -03:00
kbuild: support LLVM=1 to switch the default tools to Clang/LLVM
2020-08-26 10:40:47 +02:00
docs: Add documentation for Symbol Namespaces
2019-09-10 10:30:49 +02:00
doc 🔒 remove reference to clever use of read-write lock
2019-09-14 01:53:27 -06:00
media: videodev2.h: RGB BT2020 and HSV are always full range
2020-11-05 11:43:15 +01:00
Main MIPS changes for v5.4:
2019-09-22 09:30:30 -07:00
can: j1939: swap addr and pgn in the send example
2020-11-18 19:20:19 +01:00
Merge branches 'pm-opp', 'pm-qos', 'acpi-pm', 'pm-domains' and 'pm-tools'
2019-09-17 09:49:19 +02:00
docs: powerpc: Add missing documentation reference
2019-09-17 23:59:34 +10:00
Documentation/process: Add fallthrough pseudo-keyword
2019-10-11 09:26:05 -07:00
It's a somewhat calmer cycle for docs this time, as the churn of the mass
2019-09-17 16:22:26 -07:00
scsi: smartpqi: Update attribute name to driver_version
2020-01-17 19:48:27 +01:00
Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
2019-09-27 19:37:27 -07:00
ALSA: hda/realtek - Remove now-unnecessary XPS 13 headphone noise fixups
2020-04-17 10:50:08 +02:00
tweewide: Fix most Shebang lines
2021-05-22 11:38:30 +02:00
tweewide: Fix most Shebang lines
2021-05-22 11:38:30 +02:00
tracing/histogram: Rename "cpu" to "common_cpu"
2021-07-28 13:31:00 +02:00
doc: arm64: fix grammar dtb placed in no attributes region
2019-09-06 08:44:34 -06:00
USB: rio500: Remove Rio 500 kernel driver
2019-10-04 10:53:36 +02:00
Documentation: seccomp: Fix user notification documentation
2021-06-03 08:59:03 +02:00
KVM: X86: MMU: Use the correct inherited permissions to get shadow page
2021-08-15 13:08:04 +02:00
mm/slub: clarify verification reporting
2021-06-23 14:41:30 +02:00
linux-watchdog 5.4-rc1 tag
2019-09-27 11:17:38 -07:00
x86/CPU/AMD: Save AMD NodeId as cpu_die_id
2020-12-30 11:51:47 +01:00
xtensa: fix TLBTEMP area placement
2020-11-24 13:29:22 +01:00
linkage: Introduce new macros for assembler symbols
2020-11-10 12:37:24 +01:00
dma-mapping: remove dma_release_declared_memory
2019-09-04 11:13:19 +02:00
linkage: Introduce new macros for assembler symbols
2020-11-10 12:37:24 +01:00
lib/lzo: fix ambiguous encoding bug in lzo-rle
2020-06-17 16:40:28 +02:00
padata: allocate workqueue internally
2019-09-13 21:15:39 +10:00
3d995568c9
