Re: [PATCH] powerpc/eeh: Avoid misleading message "EEH: no capable adapters found"
On Friday 27 April 2018 06:04 AM, Russell Currey wrote:
On Thu, 2018-03-22 at 23:10 -0300, Mauro S. M. Rodrigues wrote:
Due to recent refactoring in EEH in:
commit b9fde58db7e5 ("powerpc/powernv: Rework EEH initialization on
powernv")
a misleading message was seen in the kernel message buffer:
[0.108431] EEH: PowerNV platform initialized
[0.589979] EEH: No capable adapters found
This happened due to the removal of the initialization delay for
powernv
platform.
Even though the EEH infrastructure for the devices is eventually
initialized and still works just fine the eeh device probe step is
postponed in order to assure the PEs are created. Later
pnv_eeh_post_init does the probe devices job but at that point the
message was already shown right after eeh_init flow.
This patch introduces a new flag EEH_POSTPONED_PROBE to represent
that
temporary state and avoid the message mentioned above and showing the
follow one instead:
[0.107724] EEH: PowerNV platform initialized
[4.844825] EEH: PCI Enhanced I/O Error Handling Enabled
Signed-off-by: Mauro S. M. Rodrigues
Good idea, thanks for the patch.
Acked-by: Russell Currey
Hi Mauro,
I got a chance to test your patch, I applied your patch on top of
mainline kernel commit:8efcf34a263965e471e304f94d1f6799d42a and
booted and I don't see the message "No capable adapters found" instead I
see "EEH: PCI Enhanced I/O Error Handling Enabled" as desired. But I
have not injected any EEH.Hope this should qualify your patch.
Tested-by:Venkat Rao B
Regards,
Venkat.
Re: [powerpc/powervmc]kernel BUG at arch/powerpc/mm/pgtable-book3s64.c:414!
On Friday 15 June 2018 07:14 PM, Michael Ellerman wrote: vrbagal1 writes: Hi, Observing kernel bug followed by kernel oops and system reboots, while running kselftest on Power8 LPAR. Machine Details: Power8 LPAR Git Tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git Commit ID: f5b7769eb0400ec5217a47e41148a9f816ca1f9f Kernel version: 4.17.0-autotest GCC version: (gcc version 6.3.1 20161221 (Red Hat 6.3.1-1) (GCC)) This is fixed by your patch Aneesh? http://patchwork.ozlabs.org/patch/929325/ Yes, this patch fixes the issue. Regards, Venkat cheers
Re: Fwd: [powerpc/Baremetal]Kernel OOPS while executing memory hotplug on Power8 baremetal
On Thursday 07 June 2018 12:46 PM, Bart Van Assche wrote: On Thu, 2018-06-07 at 12:38 +0530, vrbagal1 wrote: Observing Kernel oops and machine reboots while executing memory hotplug test case, on Power8 Baremetal machine. I see this is introduced some where between rc6 and 4.17. Please provide the exact versions (git commit IDs) of the kernel versions you have tested. Commit Id ---> 5037be168f Regards, Venkat IBM Linux Technology Centre Thanks, Bart.
Re: Build Failure on linux-next on Power8 machine
On Thursday 31 May 2018 04:44 PM, Christophe LEROY wrote: Le 31/05/2018 à 12:38, vrbagal1 a écrit : Greetings!!! I am observing a build failure on linux-next kernel. Machine: Power8 Platform: PowerNV(Baremetal) Git Tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git Which defconfig do you use, or can you give your .config ? Christophe Unfortunately I lost it. I only have complete fail logs. Will that be helpful? Venkat Below is the build error. 14:20:48 make[1]: *** [kernel/umh.o] Error 1 14:20:48 make[1]: *** [kernel/fork.o] Error 1 14:20:48 In file included from ./arch/powerpc/include/asm/highmem.h:30:0, 14:20:48 from ./include/linux/highmem.h:35, 14:20:48 from ./include/linux/pagemap.h:11, 14:20:48 from security/commoncap.c:19: 14:20:48 ./arch/powerpc/include/asm/fixmap.h:52:2: error: overflow in enumeration values 14:20:48 FIX_KMAP_BEGIN, /* reserved pte's for temporary kernel mappings */ 14:20:48 ^ 14:20:48 make[2]: *** [kernel/sched/swait.o] Error 1 14:20:48 make[1]: *** [mm/page_alloc.o] Error 1 14:20:48 make[1]: *** [kernel/sched] Error 2 14:20:48 make: *** [mm] Error 2 14:20:48 make[1]: *** [kernel/exit.o] Error 1 14:20:48 make[1]: *** [security/commoncap.o] Error 1 14:20:48 make[1]: *** [fs/kernfs] Error 2 14:20:48 make: *** [fs] Error 2 14:20:48 make: *** [arch/powerpc/kernel] Error 2 14:20:48 make: *** [security] Error 2 14:20:48 make: *** [kernel] Error 2 Cheers.
