Juergen Gross af7d25d785 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>		2021-11-18 14:03:49 +01:00
..
ABI	powerpc/papr_scm: Make 'perf_stats' invisible if perf-stats unavailable	2021-07-14 16:56:49 +02:00
accounting
admin-guide	xen/balloon: add late_initcall_sync() for initial ballooning done	2021-11-18 14:03:49 +01:00
arm	ARM: 9012/1: move device tree mapping out of linear region	2021-05-19 10:13:18 +02:00
arm64	userfaultfd: do not untag user pointers	2021-07-28 14:35:46 +02:00
block	block-5.10-2020-10-24	2020-10-24 12:46:42 -07:00
bpf	bpf: Migrate from patchwork.ozlabs.org to patchwork.kernel.org.	2020-10-11 22:05:47 +02:00
cdrom	A handful of obvious fixes that wandered in during the merge window.	2020-08-13 13:57:45 -07:00
core-api	dma-mapping: document dma_{alloc,free}_pages	2020-10-23 12:07:46 +02:00
cpu-freq
crypto	crypto: af_alg - add extra parameters for DRBG interface	2020-09-25 17:48:52 +10:00
dev-tools	linux-kselftest-kunit-fixes-5.10-rc5	2020-11-18 11:57:55 -08:00
devicetree	regulator: dt-bindings: samsung,s5m8767: correct s5m8767,pmic-buck-default-dvs-idx property	2021-11-18 14:03:45 +01:00
doc-guide	docs: kerneldoc.py: add support for kerneldoc -nosymbol	2020-10-15 07:49:38 +02:00
driver-api	Documentation: Fix intiramfs script name	2021-07-28 14:35:47 +02:00
fault-injection	lkdtm: replace SCSI_DISPATCH_CMD with SCSI_QUEUE_RQ	2021-09-15 09:50:42 +02:00
fb	drm fixes (round two) for 5.10-rc1	2020-10-23 13:56:34 -07:00
features	s390 updates for the 5.10 merge window	2020-10-16 12:36:38 -07:00
filesystems	Documentation: Fix intiramfs script name	2021-07-28 14:35:47 +02:00
firmware_class
firmware-guide	Documentation: ACPI: fix spelling mistakes	2020-11-10 18:48:56 +01:00
fpga
gpu	drm: Use USB controller's DMA mask when importing dmabufs	2021-03-17 17:06:19 +01:00
hid
hwmon	hwmon: (max31790) Fix pwmX_enable attributes	2021-07-14 16:55:55 +02:00
i2c	Documentation: i2c: add testunit docs to index	2020-10-05 22:57:45 +02:00
ia64	docs/ia64: Drop obsolete Xen documentation	2020-08-31 16:16:03 -06:00
ide
iio	Documentation: iio: fix a typo	2020-09-09 11:41:20 -06:00
infiniband
input
isdn
kbuild	kbuild: remove unused OBJSIZE	2020-11-02 11:31:00 +09:00
kernel-hacking
leds	docs: leds: index.rst: add a missing file	2020-11-02 13:45:37 +01:00
litmus-tests
livepatch
locking	Documentation: seqlock: s/LOCKTYPE/LOCKNAME/g	2020-12-30 11:54:11 +01:00
m68k
maintainer	Documentation/maintainer: rehome sign-off process	2020-09-03 15:39:24 -06:00
mhi
mips	dt: Remove booting-without-of.rst	2020-10-13 13:33:16 -05:00
misc-devices	Documentation: remove mic/index from misc-devices/index.rst	2020-11-04 11:38:32 +01:00
netlabel
networking	tcp: disable TFO blackhole logic by default	2021-07-28 14:35:41 +02:00
nios2
nvdimm
openrisc
parisc
PCI	Documentation: better locations for sysfs-pci, sysfs-tagging	2020-10-09 09:33:23 -06:00
pcmcia
power	PCI/PM: Rename pci_dev.d3_delay to d3hot_delay	2020-09-29 14:21:50 -05:00
powerpc	powerpc/64s/syscall: Use pt_regs.trap to distinguish syscall ABI difference between sc and scv syscalls	2021-05-26 12:06:53 +02:00
process	docs: networking: drop special stable handling	2021-03-17 17:06:13 +01:00
RCU	Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu	2020-10-09 08:21:56 +02:00
riscv
s390
scheduler	docs: scheduler: fix the directory name on two files	2020-09-10 10:45:45 -06:00
scsi	scsi: libsas: Introduce a _gfp() variant of event notifiers	2021-03-25 09:04:11 +01:00
security	watch_queue: Drop references to /dev/watch_queue	2021-03-04 11:37:59 +01:00
sh	dt: Remove booting-without-of.rst	2020-10-13 13:33:16 -05:00
sound	ALSA: doc: Fix reference to mixart.rst	2021-01-19 18:27:17 +01:00
sparc
sphinx	tweewide: Fix most Shebang lines	2021-05-22 11:40:55 +02:00
sphinx-static
spi
staging	remoteproc updates for v5.9	2020-08-11 11:17:45 -07:00
target	tweewide: Fix most Shebang lines	2021-05-22 11:40:55 +02:00
timers
trace	tracing/histogram: Rename "cpu" to "common_cpu"	2021-07-28 14:35:45 +02:00
translations	net: switch to the kernel.org patchwork instance	2020-11-11 17:12:00 -08:00
usb
userspace-api	media: hevc: Fix dependent slice segment flags	2021-07-14 16:55:51 +02:00
virt	KVM: X86: MMU: Use the correct inherited permissions to get shadow page	2021-06-16 12:01:40 +02:00
vm	mm/debug_vm_pgtable/basic: add validation for dirtiness after write protect	2021-07-14 16:56:13 +02:00
w1	docs: w1: w1_therm: Fix broken xref, mistakes, clarify text	2020-10-08 09:47:15 +02:00
watchdog
x86	x86/CPU/AMD: Save AMD NodeId as cpu_die_id	2020-12-30 11:54:29 +01:00
xtensa	xtensa: fix TLBTEMP area placement	2020-11-16 02:13:15 -08:00
.gitignore
asm-annotations.rst	x86/entry: Emit a symbol for register restoring thunk	2021-02-03 23:28:40 +01:00
atomic_bitops.txt
atomic_t.txt
Changes
CodingStyle
conf.py	This pull contains a series of warning fixes from Mauro; once applied, the	2020-11-03 13:14:14 -08:00
COPYING-logo
docutils.conf
dontdiff	kbuild: generate Module.symvers only when vmlinux exists	2021-05-19 10:12:59 +02:00
index.rst
Kconfig	docs: Kconfig/Makefile: add a check for broken ABI files	2020-10-30 13:08:07 +01:00
logo.gif
Makefile	A small number of fixes, plus a build tweak to respect the desire for	2020-11-03 09:57:30 -08:00
memory-barriers.txt	docs/memory-barriers.txt: Fix references for DMA*.txt files	2020-08-31 16:14:44 -06:00
SubmittingPatches
watch_queue.rst	docs: watch_queue: fix some warnings	2020-09-10 10:48:56 -06:00