This fixes ostest-mem_limits.001 which tries to anonymous-mmap 95% of
total memory. It reports a failure because:
(1) McKernel tries to allocate physically contiguous area and
fails
(2) It turns on demand-paging
(3) It tries to obtain a page from zeroobj and fails
(4) It allocates a new page
(5) It performs COW on the page, which is unnecessary
Change-Id: Iddf0548bb9216f9bf91fb03fa21f890e599bfdad
This fixes ostest-mem_limits.005 which tries to move brk by 95% of
total memory. It reports a failure because McKernel tries to allocate
physically contiguous area and fails.
Change-Id: I50a61cb7103fdbdbe051f0ae276a79e8e2dcdda3
Consider "arm64" to be "aarch64".
It mistakenly considers cross-compilation when compiled through spack.
Change-Id: I914df482e21517adc1105512ea3d8919ef1577b1
Fix the error handling of the following two functions:
ihk_device_get_cpu_topology: Returns NULL when not found,
valid non-NULL pointer when found
get_cache_topology: Returns NULL when not found,
valid non-NULL pointer when found,
minus error number on error
Change-Id: Ied13a61d4ab0c314477c45ea659ff2b798ad97ee
Fujitsu: POSTK_DEBUG_TEMP_FIX_21
Determine V2PHYS_OFFSET dynamically.
Fix x86 hole handling in 64 bit address space.
Fix ARM64 virtual address handling and support separate user-space
and kernel-space translation tables (i.e., TTRB0 and TTRB1).
Fix page table walker's lookup functionality.
Change-Id: I6b281693cdc88bd1b8fe3f4b8f40a6af3ca95cc0
It was telling the vmap allocator to release a wrong address range
(physical address range).
Change-Id: I82236ac0086b5da24ac49219166abf363672d838
Refs: #985
Fujitsu: #11
Document known major (e.g. linux crash) bugs that have not been
fixed downstream and might require workarounds on specific
hardware configurations
Change-Id: I51e5d23243afd4489ce1ae25e736afc27b2c8202
Using a drop-in instead of an extra service avoids having to juggle
between both services (especially since irqbalance_mck did not have a
Conflict=irqbalance.service statement)
That way, we only have a single service to check for (irqbalance.service),
and system administrators should find this less confusing if they normally
rely on irqbalance.
The drop-in is also installed in /run so will automatically disappear in
the event of a linux crash or a reboot without shutting down mckernel
Change-Id: I004f4f25d9ca037e411e0bc91f4555db138ecfef
Note: the original fujitsu implementation didn't rename the various
save_fs function/desc to save_tls for some reason, might as well go all
the way though...
Change-Id: Ic362c15c8b320c4d258d2ead8c5fd4eafd9d0ae9
Fujitsu: POSTK_DEBUG_ARCH_DEP_91
arm64 performs context-switch in kernel space instead of user space as in
x86_64.
Change-Id: Ib119b9ff014effb970183ee86cfac67fab773cba
Futjitsu: POSTK_DEBUG_ARCH_DEP_99
Some old commit before -Werror was enabled got merged,
blocking other builds. Quickly fix before anyone notices
Change-Id: I5a034cef6f79e3e99b381bb1a5d97088e33a6718
mcoverlayfs code is now unused (technically should work on top of the
soft emulation but not well tested, and untested unused code is bad).
Remove it.
Left the unshare/bind_mount_recursive code in mcexec in a new
MCEXEC_BIND_MOUNT ifdef (only in config.h.in directly to discourage use.
it disables the ioctl as well, but the main code is still compiled to
keep up to date with linux api changes... although it's using kallsyms
lookup so it does not validate much more than "the symbol still exists")
I honestly think this should go as well (people who would want to use it
are root and could do it manually), but will give up for now.
Change-Id: I832b6a8ab19e24ed67a1a5044b1c6c32381ae0aa
