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Date: Tue, 24 Nov 2015 10:51:52 -0500 (EST) From: Mikulas Patocka <mpatocka@...hat.com> To: Helge Deller <deller@....de> cc: Linus Torvalds <torvalds@...ux-foundation.org>, linux-kernel@...r.kernel.org, linux-parisc@...r.kernel.org, James Bottomley <James.Bottomley@...senPartnership.com>, John David Anglin <dave.anglin@...l.net> Subject: Re: [GIT PULL] parisc huge page support for v4.4 On Sun, 22 Nov 2015, Helge Deller wrote: > Hi Linus, > > 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 > -- > To unsubscribe from this list: send the line "unsubscribe linux-parisc" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html 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. Mikulas [ 3.296666] CPU(s): 4 out of 4 PA8900 (Shortfin) at 1000.000000 MHz online [ 3.453332] Setting cache flush threshold to 65536 kB [ 3.519999] Not-handled unaligned insn 0x43ffff80 [ 3.593332] Setting TLB flush threshold to 52 kB [ 12.069998] random: nonblocking pool is initialized [ 63.869993] INFO: rcu_sched self-detected stall on CPU [ 63.869993] 0-...: (17936 ticks this GP) idle=033/140000000000001/0 softirq=11/11 fqs=8965 [ 63.869993] (t=18000 jiffies g=-293 c=-294 q=0) [ 63.869993] Task dump for CPU 0: [ 63.869993] swapper/0 R running task 0 1 0 0x00000004 [ 63.869993] Backtrace: [ 63.869993] [<00000000402149a4>] show_stack+0x14/0x20 [ 63.869993] [<000000004026807c>] sched_show_task+0x134/0x1d0 [ 63.869993] [<000000004026a96c>] dump_cpu_task+0x5c/0x78 [ 63.869993] [<000000004028cedc>] rcu_dump_cpu_stacks+0xfc/0x188 [ 63.869993] [<00000000402915b4>] rcu_check_callbacks+0x564/0x980 [ 63.869993] [<0000000040294034>] update_process_times+0x54/0xb0 [ 63.869993] [<0000000040215b2c>] timer_interrupt+0x19c/0x200 [ 63.869993] [<0000000040283de8>] handle_irq_event_percpu+0xa8/0x230 [ 63.869993] [<0000000040288efc>] handle_percpu_irq+0x9c/0xd0 [ 63.869993] [<00000000402831b8>] generic_handle_irq+0x40/0x50 [ 63.869993] [<0000000040216a00>] do_cpu_irq_mask+0x1b8/0x2a8 [ 63.869993] [<0000000040204074>] intr_return+0x0/0xc [ 63.869993] [<00000000402a69dc>] smp_call_function_many+0x33c/0x3a0 [ 63.869993] [<00000000402a6cc4>] smp_call_function+0x3c/0x50 [ 63.869993] [<00000000402a6d38>] on_each_cpu+0x30/0x78 [ 63.869993] [<0000000040213a24>] flush_cache_all+0x24/0x30 [ 63.869993] [ 63.873326] timer_interrupt(CPU 0): delayed! cycles 645CA37E rem 2BD984 next/now 1EE1C3D259/1EE197F8D5 (rs s Resetting System. [ 3.283333] CPU(s): 4 out of 4 PA8900 (Shortfin) at 1000.000000 MHz online [ 3.436666] Setting cache flush threshold to 65536 kB [ 3.506666] Not-handled unaligned insn 0x43ffff80 [ 3.506666] Setting TLB flush threshold to 176 kB [ 3.733332] SBA found Pluto 2.3 at 0xfffffffffed00000 [ 3.873332] Unaligned handler failed, ret = -1 [ 3.946666] _______________________________ [ 3.946666] < Your System ate a SPARC! Gah! > [ 3.946666] ------------------------------- [ 3.946666] \ ^__^ [ 3.946666] (__)\ )\/\ [ 3.946666] U ||----w | [ 3.946666] || || [ 4.359999] swapper/3 (pid 0): Unaligned data reference (code 28) [ 4.453332] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 4.4.0-rc2 #1 [ 4.549999] task: 000000007fca6900 ti: 000000007fcf4000 task.ti: 000000007fcf4000 [ 11.313332] [ 11.313332] YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI [ 11.313332] PSW: 00001000000001001111111100000000 Not tainted ** 10665 printk messages dropped ** [ 11.333332] [<000000004020fb60>] schedule_timeout+0x158/0x1f8 ** 33399 printk messages dropped ** [ 11.396665] [<000000004020fb60>] schedule_timeout+0x158/0x1f8 ** 33416 printk messages dropped ** [ 11.469998] [<00000000402630a4>] deactivate_task+0x84/0xa0 ** 32424 printk messages dropped ** [ 11.589998] [<0000000040293f00>] msleep+0x38/0x50 ** 29540 printk messages dropped ** [ 11.709998] [<0000000040293f00>] msleep+0x38/0x50 ** 29550 printk messages dropped ** [ 11.826665] Backtrace: ** 20455 printk messages dropped ** [ 11.933332] [<0000000040104f84>] smp_callin+0x1a4/0x1c0 ** 31472 printk messages dropped ** [ 12.036665] [<0000000040293f00>] msleep+0x38/0x50 ** 29553 printk messages dropped ** [ 12.109998] [<000000004026b5a0>] dequeue_task_idle+0x40/0x60 ** 33125 printk messages dropped ** [ 12.223332] [<0000000040293f00>] msleep+0x38/0x50 ** 29573 printk messages dropped ** [ 12.326665] [<000000004026b5a0>] dequeue_task_idle+0x40/0x60 ** 33122 printk messages dropped ** [ 12.446665] [<000000004020ca64>] schedule+0x44/0xe8 ** 30208 printk messages dropped ** [ 12.553332] [<000000004027a5a4>] cpu_startup_entry+0x13c/0x300 ** 33750 printk messages dropped ** [ 12.776665] [<000000004020ca64>] schedule+0x44/0xe8 ** 30188 printk messages dropped ** [ 12.776665] [<000000004027a5a4>] cpu_startup_entry+0x13c/0x300 ** 33724 printk messages dropped ** [ 13.006665] Backtrace: ** 20455 printk messages dropped ** [ 13.006665] [<0000000040104f84>] smp_callin+0x1a4/0x1c0 ** 31454 printk messages dropped ** [ 13.126665] [<000000004021dd60>] handle_unaligned+0x908/0x958 ** 33380 printk messages dropped ** [ 13.199998] [<0000000040215350>] handle_interruption+0x338/0x910 ** 34395 printk messages dropped ** [ 13.429998] [<000000004020fc24>] schedule_timeout_uninterruptible+0x24/0x30 ** 37954 printk messages dropped ** [ 13.553331] [<000000004026b5a0>] dequeue_task_idle+0x40/0x60 ** 33004 printk messages dropped ** [ 13.553331] [<000000004020fc24>] schedule_timeout_uninterruptible+0x24/0x30 ** 37859 printk messages dropped ** [ 13.809998] [<000000004020fc24>] schedule_timeout_uninterruptible+0x24/0x30 ** 37918 printk messages dropped ** [ 13.943331] [<000000004020fb60>] schedule_timeout+0x158/0x1f8 ** 33399 printk messages dropped ** [ 13.943331] [<000000004020fb60>] schedule_timeout+0x158/0x1f8 ** 33391 printk messages dropped ** [ 14.079998] CPU: 3 PID: 0 Comm: swapper/3 Tainted: G D 4.4.0-rc2 #1 ** 39246 printk messages dropped ** [ 14.319998] [<000000004020ca64>] schedule+0x44/0xe8 ** 30202 printk messages dropped ** [ 14.319998] [<0000000040293f00>] msleep+0x38/0x50 ** 29526 printk messages dropped ** [ 14.459998] [<0000000040104f84>] smp_callin+0x1a4/0x1c0 ** 31393 printk messages dropped ** [ 14.566665] [<0000000040214bd8>] die_if_kernel+0x220/0x298 ** 32365 printk messages dropped ** [ 14.673331] [<0000000040104f84>] smp_callin+0x1a4/0x1c0 ** 31414 printk messages dropped ** [ 14.783331] [<000000004021dd60>] handle_unaligned+0x908/0x958 ** 33411 printk messages dropped ** [ 14.899998] [<000000004026b5a0>] dequeue_task_idle+0x40/0x60 ** 33047 printk messages dropped ** [ 15.013331] [<000000004021dd60>] handle_unaligned+0x908/0x958 ** 33387 printk messages dropped ** [ 15.133331] CPU: 3 PID: 0 Comm: swapper/3 Tainted: G D 4.4.0-rc2 #1 ** 39268 printk messages dropped ** [ 15.369998] [<000000004020fc24>] schedule_timeout_uninterruptible+0x24/0x30 ** 37924 printk messages dropped ** [ 15.509998] [<000000004023e5d0>] irq_exit+0x58/0xa0 ** 30079 printk messages dropped ** [ 15.509998] [<000000004023e5d0>] irq_exit+0x58/0xa0 ** 30107 printk messages dropped ** [ 15.646665] [<00000000402149a4>] show_stack+0x14/0x20 ** 30817 printk messages dropped ** [ 15.753331] CPU: 3 PID: 0 Comm: swapper/3 Tainted: G D 4.4.0-rc2 #1 ** 39240 printk messages dropped ** [ 15.969998] Backtrace: ** 20424 printk messages dropped ** [ 15.969998] [<000000004020c438>] __schedule+0xe8/0x560 ** 31127 printk messages dropped ** [ 16.109998] [<000000004023e5d0>] irq_exit+0x58/0xa0 ** 30177 printk [ 16.1[<00000083331] 00402153[<00000050>] han00402153dle_inte50>] hanrruptiondle_inte+0x338/0rruptionx910 +0x338/00>] handx910 le_unali[ 16.1gned+0x983331] 08/0x958[<000000 004023e5d0>] irq_exit+0x58/0xa0 [ 16.183331] [<0000000040204074>] intr_return+0x0/0xc [ 16.183331] [<000000004027a5a4>] cpu_startup_entry+0x13c/0x300 [ 16.183331] [<0000000040104f84>] smp_callin+0x1a4/0x1c0 [ 16.183331] [ 16.183331] bad: scheduling from the idle thread! [ 16.183331] CPU: 3 PID: 0 Comm: swapper/3 Tainted: G D 4.4.0-rc2 #1 [ 16.183331] Backtrace: [ 16.183331] [<00000000402149a4>] show_stack+0x14/0x20 [ 16.183331] [<0000000040410c18>] dump_stack+0x88/0x100 [ 16.183331] [<000000004026b5a0>] dequeue_task_idle+0x40/0x60 [ 16.183331] [<00000000402630a4>] deactivate_task+0x84/0xa0 [ 16.183331] [<000000004020c438>] __schedule+0xe8/0x560 [ 16.183331] [<000000004020ca64>] schedule+0x44/0xe8 [ 16.183331] [<000000004020fb60>] schedule_timeout+0x158/0x1f8 [ 16.183331] [<000000004020fc24>] schedule_timeout_uninterruptible+0x24/0x30 [ 16.183331] [<0000000040293f00>] msleep+0x38/0x50 [ 16.183331] [<0000000040214bd8>] die_if_kernel+0x220/0x298 [ 16.183331] [<000000004021dd60>] handle_unaligned+0x908/0x958 [ 16.183331] [<0000000040215350>] handle_interruption+0x338/0x910 [ 16.183331] [<000000004023e5d0>] irq_exit+0x58/0xa0 [ 16.183331] [<0000000040204074>] intr_return+0x0/0xc [ 16.183331] [<000000004027a5a4>] cpu_startup_entry+0x13c/0x300 [ 16.183331] [<0000000040104f84>] smp_callin+0x1a4/0x1c0 [ 16.183331] -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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