On 24.11.2015 16:51, Mikulas Patocka wrote: > On Sun, 22 Nov 2015, Helge Deller wrote: >> please pull the latest patches for the parisc architecture for kernel v4.4 from: >> >> git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git parisc-4.4-2 >> >> This patchset adds Huge Page and HUGETLBFS support for parisc. >> >> Thanks, >> Helge >> >> ---------------------------------------------------------------- >> Helge Deller (9): >> parisc: Fix wrong comment regarding first pmd entry flags >> parisc: Drop definition of start_thread_som for HP-UX SOM binaries >> parisc: Drop unused MADV_xxxK_PAGES flags from asm/mman.h >> parisc: Add defines for Huge page support >> parisc: Initialize the fault vector earlier in the boot process. >> parisc: Increase initial kernel mapping to 32MB on 64bit kernel >> parisc: Use long branch to do_syscall_trace_exit >> parisc: Add Huge Page and HUGETLBFS support >> parisc: Map kernel text and data on huge pages >> >> arch/parisc/Kconfig | 3 + >> arch/parisc/include/asm/hugetlb.h | 85 +++++++++++++++++++ >> arch/parisc/include/asm/page.h | 13 ++- >> arch/parisc/include/asm/pgalloc.h | 2 +- >> arch/parisc/include/asm/pgtable.h | 26 +++++- >> arch/parisc/include/asm/processor.h | 27 ------ >> arch/parisc/include/uapi/asm/mman.h | 10 --- >> arch/parisc/kernel/asm-offsets.c | 8 ++ >> arch/parisc/kernel/entry.S | 56 ++++++++----- >> arch/parisc/kernel/head.S | 4 +- >> arch/parisc/kernel/setup.c | 14 +++- >> arch/parisc/kernel/syscall.S | 4 +- >> arch/parisc/kernel/traps.c | 35 ++++---- >> arch/parisc/kernel/vmlinux.lds.S | 9 +- >> arch/parisc/mm/Makefile | 1 + >> arch/parisc/mm/hugetlbpage.c | 161 ++++++++++++++++++++++++++++++++++++ >> arch/parisc/mm/init.c | 40 ++++----- >> 17 files changed, 382 insertions(+), 116 deletions(-) >> create mode 100644 arch/parisc/include/asm/hugetlb.h >> create mode 100644 arch/parisc/mm/hugetlbpage.c > > Hi > > Since the kernel 4.4-rc2 I'm getting frequent boot failures on PA-RISC. > When I revert this patchset, the crashes are gone. > [ 3.296666] CPU(s): 4 out of 4 PA8900 (Shortfin) at 1000.000000 MHz online Hi Mikulas, Yes, I've seen this as well. It affects only the PA8900 CPUs, while all PA8500-PA8700 machines seem to work fine. I do have a temporary 3-line patch to avoid the crashes which I'll push to my tree shortly. I'm still investigating why it only affects the PA8900 CPUs, but I assume it's related to the cache aliasing of those CPUs. I'll keep you updated. Helge -- To unsubscribe from this list: send the line "unsubscribe linux-parisc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
