Re: [PATCH] Doc: admin-guide: Add entry for kvm_cma_resv_ratio kernel param

2020-09-16 Thread Satheesh Rajendran
Hi Randy, Thanks for the comments, will send a V2 fixing them. On Tue, Sep 15, 2020 at 11:18:52PM -0700, Randy Dunlap wrote: > On 9/15/20 11:11 PM, sathn...@linux.vnet.ibm.com wrote: > > From: Satheesh Rajendran > > > > Add document entry for kvm_cma_resv_ratio kernel pa

Re: [PATCH v5 05/10] powerpc/smp: Dont assume l2-cache to be superset of sibling

2020-09-13 Thread Satheesh Rajendran
On Fri, Sep 11, 2020 at 09:55:23PM +1000, Michael Ellerman wrote: > Srikar Dronamraju writes: > > Current code assumes that cpumask of cpus sharing a l2-cache mask will > > always be a superset of cpu_sibling_mask. > > > > Lets stop that assumption. cpu_l2_cache_mask is a superset of > >

Re: [PATCH 0/7] Optimization to improve cpu online/offline on Powerpc

2020-07-29 Thread Satheesh Rajendran
series: # dmesg|grep smp [0.067744] smp: Bringing up secondary CPUs ... [ 5.416910] smp: Brought up 1 node, 2048 CPUs Tested-by: Satheesh Rajendran Regards, -Satheesh > > Architecture:ppc64le > Byte Order: Little Endian > CPU(s): 160 > On-li

[PATCH V2] powerpc/pseries/svm: Remove unwanted check for shared_lppaca_size

2020-06-19 Thread Satheesh Rajendran
y: Laurent Dufour Reviewed-by: Thiago Jung Bauermann Signed-off-by: Satheesh Rajendran --- V2: Added Reviewed by Thiago and Laurent. Added Fixes tag as per Thiago suggest. V1: https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20200609105731.14032-1-sathn...@linux.vnet.ibm.com/ --- ar

[PATCH V2] powerpc/pseries/svm: Drop unused align argument in alloc_shared_lppaca() function

2020-06-12 Thread Satheesh Rajendran
hiago Jung Bauermann Signed-off-by: Satheesh Rajendran --- V2: Added reviewed by Thiago. Dropped align argument as per Michael suggest. Modified commit msg. V1: http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20200609113909.17236-1-sathn...@linux.vnet.ibm.com/ --- arch/powerpc/kernel/p

[PATCH] powerpc/pseries/svm: Fixup align argument in alloc_shared_lppaca() function

2020-06-09 Thread Satheesh Rajendran
Argument "align" in alloc_shared_lppaca() function was unused inside the function. Let's fix it and update code comment. Cc: linux-ker...@vger.kernel.org Cc: Thiago Jung Bauermann Cc: Ram Pai Cc: Sukadev Bhattiprolu Cc: Laurent Dufour Signed-off-by: Satheesh Rajendran --- ar

[PATCH] powerpc/pseries/svm: Remove unwanted check for shared_lppaca_size

2020-06-09 Thread Satheesh Rajendran
pSeries which is not necessary, let's remove it. Cc: linux-ker...@vger.kernel.org Cc: Thiago Jung Bauermann Cc: Ram Pai Cc: Sukadev Bhattiprolu Cc: Laurent Dufour Signed-off-by: Satheesh Rajendran --- arch/powerpc/kernel/paca.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git

Re: [PATCH v3] selftests: powerpc: Fix CPU affinity for child process

2020-06-09 Thread Satheesh Rajendran
is dependent on the number of CPUs as > reported by get_nprocs(). > > Fixes: 00b7ec5c9cf3 ("selftests/powerpc: Import Anton's context_switch2 > benchmark") > Reported-by: Shirisha Ganta > Signed-off-by: Sandipan Das > Signed-off-by: Harish > --- Reviewed-by: Sathees

Re: [PATCH v2] selftests: powerpc: Fix CPU affinity for child process

2020-06-09 Thread Satheesh Rajendran
On Tue, Jun 09, 2020 at 09:10:05AM +0530, Harish wrote: > On systems with large number of cpus, test fails trying to set > affinity for child process by calling sched_setaffinity() with > smaller size for cpuset. This patch fixes it by making sure that > the size of allocated cpu set is dependent

Re: [mainline][Oops][bisected 2ba3e6 ] 5.7.0 boot fails with kernel panic on powerpc

2020-06-03 Thread Satheesh Rajendran
l box(mentioned in Note) and your below patch helped solving that for my environment and am able to boot the system fine. ... Fedora 31 (Thirty One) Kernel 5.7.0-gd6f9469a0-dirty on an ppc64le (hvc0) login: Tested-by: Satheesh Rajendran Note: for the record, here is the boot failure call trace.

Re: [PATCH 2/3] powerpc/numa: Early request for home node associativity

2019-08-23 Thread Satheesh Rajendran
. Hence call smp_setup_pacas before numa_setup_cpus. > > Signed-off-by: Srikar Dronamraju > Cc: Michael Ellerman > Cc: Nicholas Piggin > Cc: Nathan Lynch > Cc: linuxppc-dev@lists.ozlabs.org > Reported-by: Satheesh Rajendran > Reported-by: Abdul Haleem > --- > arch/po

Re: [PATCH] powerpc: mm: Limit rma_size to 1TB when running without HV mode

2019-07-10 Thread Satheesh Rajendran
now Power8 compat guest boots fine with mem >1024G on Power9 host. Tested-by: Satheesh Rajendran Host: P9; kernel: 5.2.0-00915-g5ad18b2e60b7 Before this patch: Guest crashes.. [0.00] BUG: Kernel NULL pointer dereference at 0x0028 [0.00] Faulting instruction address: 0xc

Re: [PATCH] recordmcount: Fix spurious mcount entries on powerpc

2019-06-27 Thread Satheesh Rajendran
ppc/merge branch latest commit 850f6274c5b5 was failing to boot IBM Power8 Box, and the failure got resolved with this patch. https://github.com/linuxppc/issues/issues/254 # git log -2 --oneline 0e0f55b31ea8 (HEAD -> issue_254) recordmcount: Fix spurious mcount entries on powerpc 850f6274c5b5 (origin/me

Re: [PATCH v3 3/3] powerpc: Add support to initialize ima policy rules

2019-06-10 Thread Satheesh Rajendran
On Mon, Jun 10, 2019 at 04:33:57PM -0400, Nayna Jain wrote: > PowerNV secure boot relies on the kernel IMA security subsystem to > perform the OS kernel image signature verification. Since each secure > boot mode has different IMA policy requirements, dynamic definition of > the policy rules based

Re: [PATCH 4/4] mm/vmalloc: Hugepage vmalloc mappings

2019-06-10 Thread Satheesh Rajendran
On Mon, Jun 10, 2019 at 03:49:48PM +1000, Nicholas Piggin wrote: > Nicholas Piggin's on June 10, 2019 2:38 pm: > > +static int vmap_hpages_range(unsigned long start, unsigned long end, > > + pgprot_t prot, struct page **pages, > > + unsigned int

Re: [RFC PATCH V2 3/3] mm/nvdimm: Use correct #defines instead of opencoding

2019-05-22 Thread Satheesh Rajendran
On Wed, May 22, 2019 at 01:57:01PM +0530, Aneesh Kumar K.V wrote: > The nfpn related change is needed to fix the kernel message > > "number of pfns truncated from 2617344 to 163584" > > The change makes sure the nfpns stored in the superblock is right value. > > Signed-off-by: Aneesh Kumar K.V

Re: [PATCH v5 00/16] KVM: PPC: Book3S HV: add XIVE native exploitation mode

2019-04-29 Thread Satheesh Rajendran
On Wed, Apr 10, 2019 at 07:04:32PM +0200, C├ędric Le Goater wrote: > Hello, > > GitHub trees available here : > > QEMU sPAPR: > > https://github.com/legoater/qemu/commits/xive-next > > Linux/KVM: > > https://github.com/legoater/linux/commits/xive-5.1 Hi, Xive(both ic-mode=dual and

Re: [PATCH v8 1/2] powerpc/64s: reimplement book3s idle code in C

2019-04-08 Thread Satheesh Rajendran
Hi, Hit with below kernel crash during Power8 Host boot with this patch series on top of powerpc merge branch commit https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?h=merge=6a821ffee18a6e6c0027c523fa8c958df98ca361 built with ppc64le_defconfig Host Console log: [

Re: [PATCH] Disable kcov for slb routines.

2019-03-06 Thread Satheesh Rajendran
> > Signed-off-by: Mahesh Salgaonkar > --- > arch/powerpc/mm/Makefile |1 + > 1 file changed, 1 insertion(+) Fixes: https://github.com/linuxppc/issues/issues/230 Tested-by: Satheesh Rajendran > > diff --git a/arch/powerpc/mm/Makefile b/arch/powerpc/mm/Makefile >

Re: [PATCH v3 0/4] Fixes for 3 separate NMI reentrancy bugs

2019-02-25 Thread Satheesh Rajendran
On Tue, Feb 26, 2019 at 04:08:57PM +1000, Nicholas Piggin wrote: > This series fixes several similar but unrelated bugs with NMIs > clobbering live registers without noticing it, because MSR[RI] is set. > Pretty rare bugs, but serious silent corruption consequences. > > For the most part these

Re: [PATCH v5 0/5] powerpc: system call table generation support

2018-12-17 Thread Satheesh Rajendran
Hi Firoz, On Thu, Dec 13, 2018 at 02:32:45PM +0530, Firoz Khan wrote: > The purpose of this patch series is, we can easily > add/modify/delete system call table support by cha- > nging entry in syscall.tbl file instead of manually > changing many files. The other goal is to unify the > system

Re: [PATCH v4 0/5] powerpc: system call table generation support

2018-12-06 Thread Satheesh Rajendran
On Fri, Dec 07, 2018 at 11:41:35AM +0530, Firoz Khan wrote: > The purpose of this patch series is, we can easily > add/modify/delete system call table support by cha- > nging entry in syscall.tbl file instead of manually > changing many files. The other goal is to unify the > system call table

Re: [PATCH 0/3] System call table generation support

2018-11-29 Thread Satheesh Rajendran
On Thu, Nov 29, 2018 at 01:48:16PM +0530, Firoz Khan wrote: > Hi Sathish, > > Thanks for your email. > > On Thu, 29 Nov 2018 at 12:05, Satheesh Rajendran > wrote: > > > > On Fri, Sep 14, 2018 at 02:02:57PM +0530, Firoz Khan wrote: > > > The purpose o

Re: [PATCH] powerpc/numa: fix hot-added CPU on memory-less node

2018-11-15 Thread Satheesh Rajendran
On Wed, Nov 14, 2018 at 06:03:19PM +0100, Laurent Vivier wrote: > Trying to hotplug a CPU on an empty NUMA node (without > memory or CPU) crashes the kernel when the CPU is onlined. > > During the onlining process, the kernel calls start_secondary() > that ends by calling >

Re: [PATCH] powerpc: Add KVM guest defconfig

2018-11-12 Thread Satheesh Rajendran
On Mon, Nov 12, 2018 at 11:24:08PM +1100, Michael Ellerman wrote: > Satheesh Rajendran writes: > > > On Thu, Nov 08, 2018 at 04:23:07PM -0200, Breno Leitao wrote: > >> hi Satheesh, > >> > >> On 11/08/2018 03:08 AM, sathn...@linux.vnet.ibm.com wrote:

Re: [PATCH] powerpc: Add KVM guest defconfig

2018-11-09 Thread Satheesh Rajendran
On Thu, Nov 08, 2018 at 04:23:07PM -0200, Breno Leitao wrote: > hi Satheesh, > > On 11/08/2018 03:08 AM, sathn...@linux.vnet.ibm.com wrote: > > --- /dev/null > > +++ b/arch/powerpc/configs/guest.config > > @@ -0,0 +1,14 @@ > > +CONFIG_VIRTIO_BLK=y > > +CONFIG_VIRTIO_BLK_SCSI=y > >

Re: System not booting since dm changes? (was Linux 4.20-rc1)

2018-11-05 Thread Satheesh Rajendran
On Mon, Nov 05, 2018 at 08:51:57AM -0500, Mike Snitzer wrote: > On Mon, Nov 05 2018 at 5:25am -0500, > Michael Ellerman wrote: > > > Linus Torvalds writes: > > ... > > > Mike Snitzer (1): > > > device mapper updates > > > > Hi Mike, > > > > Replying here because I can't find the