From: Gurudas Pai <gurudas.pai@oracle.com>
To: sparclinux@vger.kernel.org
Subject: Re: [PATCH v2 0/9] sparc64: Support 47-bit physical addresses.
Date: Mon, 30 Sep 2013 23:47:48 +0000 [thread overview]
Message-ID: <524A0DA4.4080709@oracle.com> (raw)
In-Reply-To: <20130930.123130.354302574443157859.davem@davemloft.net>
On 09/30/2013 09:31 AM, David Miller wrote:
> This is a respin of the original page_offset and 64-bit page
> table changes with some minor changes and a bug fix:
>
> 1) Bob's ACKs for the first 6 patches added.
>
> 2) Don't use "UL" postfix for shift counts, there is code that
> wants those to be "int", particularly printfs in mm/mm_init.c
> that use the "%d" format specifier for SECTIONS_SHIFT.
>
> 3) Adjust VA_HOLE defines to match what the new 3-level page
> tables can actually provide.
>
> Signed-off-by: David S. Miller <davem@davemloft.net>
> --
Allocate 10 hugepages, and run a test using tool 'fio' with following
jobfile.
Fio just hangs. Basically issue is with O_DIRECT and hugepages. If you
comment
out "direct=1" from jobfile test works fine.
[global]
bs=8k
randrepeat=1
mem=shmhuge
size\x100m
direct=1
[job2]
ioengine=psync
rw=randrw
filename=file1:file2
cat /proc/49667/stack
[<00000000004209d4>] tl0_irq14+0x14/0x20
[<0000000000570ffc>] hugetlb_fault+0xbc/0x360
[<000000000057135c>] follow_hugetlb_page+0xbc/0x300
[<000000000055526c>] __get_user_pages+0x2ec/0x3a0
[<00000000005553e4>] get_user_pages+0x44/0x60
[<0000000000457590>] get_user_pages_fast+0xf0/0x220
[<00000000005ca878>] do_direct_IO+0xed8/0x1c80
[<00000000005cbb44>] __blockdev_direct_IO+0x344/0x1640
[<0000000010320444>] ext4_ind_direct_IO+0xe4/0x440 [ext4]
[<00000000102dc888>] ext4_ext_direct_IO+0x1c8/0x2c0 [ext4]
[<00000000102dca7c>] ext4_direct_IO+0xfc/0x200 [ext4]
[<000000000052d4ac>] generic_file_aio_read+0x1ec/0x220
[<000000000058dd98>] do_sync_read+0x58/0xa0
[<000000000058f42c>] vfs_read+0x6c/0x140
[<000000000058f568>] SyS_pread64+0x68/0x80
[<00000000004061d4>] linux_sparc_syscall+0x34/0x44
[root@localhost ~]# cat /proc/49667/stack
[<0000000000538f58>] put_compound_page+0x38/0x1c0
[<000002eab77ca457>] 0x2eab77ca457
[root@localhost ~]# cat /proc/49667/stack
[<0000000000538f2c>] put_compound_page+0xc/0x1c0
[<000000000053912c>] put_page+0x4c/0x60
[<0000000000571124>] hugetlb_fault+0x1e4/0x360
[<000000000057135c>] follow_hugetlb_page+0xbc/0x300
[<000000000055526c>] __get_user_pages+0x2ec/0x3a0
[<00000000005553e4>] get_user_pages+0x44/0x60
[<0000000000457590>] get_user_pages_fast+0xf0/0x220
[<00000000005ca878>] do_direct_IO+0xed8/0x1c80
[<00000000005cbb44>] __blockdev_direct_IO+0x344/0x1640
[<0000000010320444>] ext4_ind_direct_IO+0xe4/0x440 [ext4]
[<00000000102dc888>] ext4_ext_direct_IO+0x1c8/0x2c0 [ext4]
[<00000000102dca7c>] ext4_direct_IO+0xfc/0x200 [ext4]
[<000000000052d4ac>] generic_file_aio_read+0x1ec/0x220
[<000000000058dd98>] do_sync_read+0x58/0xa0
[<000000000058f42c>] vfs_read+0x6c/0x140
[<000000000058f568>] SyS_pread64+0x68/0x80
[<00000000004061d4>] linux_sparc_syscall+0x34/0x44
thanks,
-Guru
next prev parent reply other threads:[~2013-09-30 23:47 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-30 16:31 [PATCH v2 0/9] sparc64: Support 47-bit physical addresses David Miller
2013-09-30 20:14 ` Gurudas Pai
2013-09-30 23:07 ` David Miller
2013-09-30 23:47 ` Gurudas Pai [this message]
2013-09-30 23:51 ` David Miller
2013-10-01 0:42 ` Gurudas Pai
2013-10-01 20:11 ` David Miller
2013-10-01 23:08 ` Gurudas Pai
2013-10-02 1:20 ` Gurudas Pai
2013-10-02 5:11 ` David Miller
2013-10-02 18:14 ` David Miller
2013-10-02 18:25 ` David Miller
2013-10-02 19:38 ` Gurudas Pai
2013-10-02 20:17 ` David Miller
2013-10-02 21:02 ` Gurudas Pai
2013-10-02 21:18 ` David Miller
2013-10-04 2:07 ` Gurudas Pai
2013-10-04 2:16 ` Gurudas Pai
2013-10-04 15:45 ` Bob Picco
2013-10-04 16:24 ` Bob Picco
2013-10-04 18:00 ` David Miller
2013-10-07 16:07 ` Bob Picco
2013-10-07 16:08 ` David Miller
2013-10-08 13:42 ` Bob Picco
2013-10-09 19:18 ` David Miller
2013-10-09 20:03 ` David Miller
2013-10-10 14:19 ` Bob Picco
2013-10-11 21:26 ` Gurudas Pai
2013-10-11 21:54 ` David Miller
2013-10-12 2:05 ` Gurudas Pai
2013-10-12 5:06 ` David Miller
2013-10-23 1:18 ` Gurudas Pai
2013-10-23 5:28 ` David Miller
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