> On 11-Dec-2020, at 3:47 PM, Sachin Sant wrote:
>
> I am observing system crash during a cpu offline/online operation
> with latest merge branch code running in a PowerVM LPAR (P8 onwards)
>
> # uname -r
> 5.10.0-rc7-01792-g244569c777ca
> # ppc64_cpu --smt=1
> [ 244.205194] cpu 1 (hwid 1) R
Commit 7bfe54b5f165 ("powerpc/mm: Refactor the floor/ceiling check in
hugetlb range freeing functions") inadvertely removed the mask
applied to start parameter in those two functions, leading to the
following crash on power9.
[ 7703.114640][T58070] LTP: starting hugemmap05_1 (hugemmap05 -m)
[ 7703
The VAS device allocates a generic interrupt to handle page faults but
the IRQ name doesn't show under /proc. This is because it's on
stack. Allocate the name.
Signed-off-by: Cédric Le Goater
---
I didn't understand this part in init_vas_instance() :
if (vinst->virq) {
A 'irq_dispose_mapping()' call is missing in the remove function.
Add it.
This is needed to undo the 'irq_of_parse_and_map() call from the probe
function and already part of the error handling path of the probe function.
It was added in the probe function only in commit d3f620b2c4fe ("fsldma:
sim
In case of error, the previous 'fsl_dma_chan_probe()' calls must be undone
by some 'fsl_dma_chan_remove()', as already done in the remove function.
It was added in the remove function in commit 77cd62e8082b ("fsldma: allow
Freescale Elo DMA driver to be compiled as a module")
Fixes: d3f620b2c4fe
Commit ccbef1674a15 ("Kbuild, lto: add ld-version and ld-ifversion
macros") introduced scripts/ld-version.sh for GCC LTO.
At that time, this script handled 5 version fields because GCC LTO
needed the downstream binutils. (https://lkml.org/lkml/2014/4/8/272)
The code snippet from the submitted pat
