Re: [GIT PULL] parisc huge page support for v4.4
From: Mikulas Patocka
Date: Tue Nov 24 2015 - 10:52:04 EST
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
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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]
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