From: Kenny Simpson <theonetruekenny@yahoo.com>
To: Andrew Morton <akpm@osdl.org>
Cc: trond.myklebust@fys.uio.no, cel@citi.umich.edu,
linux-kernel@vger.kernel.org
Subject: Re: mmap over nfs leads to excessive system load
Date: Fri, 18 Nov 2005 09:26:13 -0800 (PST) [thread overview]
Message-ID: <20051118172613.79425.qmail@web34105.mail.mud.yahoo.com> (raw)
In-Reply-To: <20051117130403.4155c94c.akpm@osdl.org>
[-- Attachment #1: Type: text/plain, Size: 247 bytes --]
Instead of sysrq with 't', here is the sysrq with 'p'... it agrees with oprofile
Has anyone else been able to repoduce this?
-Kenny
__________________________________
Yahoo! Mail - PC Magazine Editors' Choice 2005
http://mail.yahoo.com
[-- Attachment #2: 3794922530-sysrq --]
[-- Type: application/octet-stream, Size: 11561 bytes --]
Nov 18 12:17:10 tux6127 kernel: [ 2735.531683] SysRq : Show Regs
Nov 18 12:17:10 tux6127 kernel: [ 2735.531777]
Nov 18 12:17:10 tux6127 kernel: [ 2735.531825] Pid: 0, comm: swapper
Nov 18 12:17:10 tux6127 kernel: [ 2735.531876] EIP: 0060:[<c02d6299>] CPU: 0
Nov 18 12:17:10 tux6127 kernel: [ 2735.531934] EIP is at acpi_safe_halt+0x26/0x32
Nov 18 12:17:10 tux6127 kernel: [ 2735.531986] EFLAGS: 00000246 Tainted: P (2.6.15-rc1-mm2)
Nov 18 12:17:10 tux6127 kernel: [ 2735.532040] EAX: 00000000 EBX: c02d62a5 ECX: 00000001 EDX: c056b000
Nov 18 12:17:10 tux6127 kernel: [ 2735.532094] ESI: f7ab9c6c EDI: f7ab9bf8 EBP: c056bf88 DS: 007b ES: 007b
Nov 18 12:17:10 tux6127 kernel: [ 2735.532185] CR0: 8005003b CR2: b7f33e64 CR3: 364a5000 CR4: 00000640
Nov 18 12:17:10 tux6127 kernel: [ 2735.532239] ---------------------------
Nov 18 12:17:10 tux6127 kernel: [ 2735.532289] | preempt count: 00010001 ]
Nov 18 12:17:10 tux6127 kernel: [ 2735.532340] | 1 level deep critical section nesting:
Nov 18 12:17:10 tux6127 kernel: [ 2735.532391] ----------------------------------------
Nov 18 12:17:10 tux6127 kernel: [ 2735.532443] .. [<c0100dc6>] .... cpu_idle+0x3f/0x9f
Nov 18 12:17:10 tux6127 kernel: [ 2735.532533] .....[<c01002dd>] .. ( <= _stext+0x45/0x49)
Nov 18 12:17:10 tux6127 kernel: [ 2735.532623]
Nov 18 12:17:10 tux6127 kernel: [ 2735.532670] ----------- IPI show regs -----------
Nov 18 12:17:10 tux6127 kernel: [ 2735.532766] Pid: 0, comm: swapper
Nov 18 12:17:10 tux6127 kernel: [ 2735.532772] EIP: 0060:[<c02d6299>] CPU: 1
Nov 18 12:17:10 tux6127 kernel: [ 2735.532777] EIP is at acpi_safe_halt+0x26/0x32
Nov 18 12:17:10 tux6127 kernel: [ 2735.532780] EFLAGS: 00000246 Tainted: P (2.6.15-rc1-mm2)
Nov 18 12:17:10 tux6127 kernel: [ 2735.532784] EAX: 00000000 EBX: c02d62a5 ECX: 00000001 EDX: c298a000
Nov 18 12:17:10 tux6127 kernel: [ 2735.532787] ESI: f7abec6c EDI: f7abebf8 EBP: c298af5c DS: 007b ES: 007b
Nov 18 12:17:10 tux6127 kernel: [ 2735.532798] CR0: 8005003b CR2: 0804d054 CR3: 31a28000 CR4: 00000640
Nov 18 12:17:10 tux6127 kernel: [ 2735.532801] [<c0101155>] show_regs+0x146/0x16d
Nov 18 12:17:10 tux6127 kernel: [ 2735.532806] [<c0112afd>] smp_show_regs+0x3a/0x57
Nov 18 12:17:10 tux6127 kernel: [ 2735.532814] [<c0110a58>] smp_nmi_callback+0x69/0x7d
Nov 18 12:17:10 tux6127 kernel: [ 2735.532821] [<c0104cae>] do_nmi+0x4d/0x6b
Nov 18 12:17:10 tux6127 kernel: [ 2735.532827] [<c0103b0e>] nmi_stack_correct+0x1d/0x22
Nov 18 12:17:10 tux6127 kernel: [ 2735.532832] [<c02d63c9>] acpi_processor_idle+0x124/0x2c4
Nov 18 12:17:10 tux6127 kernel: [ 2735.532839] [<c0100e10>] cpu_idle+0x89/0x9f
Nov 18 12:17:10 tux6127 kernel: [ 2735.532848] [<c0111032>] start_secondary+0x17f/0x2ef
Nov 18 12:17:10 tux6127 kernel: [ 2735.532854] [<00000000>] 0x0
Nov 18 12:17:10 tux6127 kernel: [ 2735.532865] [<c298afb4>] 0xc298afb4
Nov 18 12:17:10 tux6127 kernel: [ 2735.532871] ---------------------------
Nov 18 12:17:10 tux6127 kernel: [ 2735.532874] | preempt count: 00020002 ]
Nov 18 12:17:10 tux6127 kernel: [ 2735.532876] | 2 level deep critical section nesting:
Nov 18 12:17:10 tux6127 kernel: [ 2735.532878] ----------------------------------------
Nov 18 12:17:10 tux6127 kernel: [ 2735.532881] .. [<c0100dc6>] .... cpu_idle+0x3f/0x9f
Nov 18 12:17:10 tux6127 kernel: [ 2735.532885] .....[<c0111032>] .. ( <= start_secondary+0x17f/0x2ef)
Nov 18 12:17:10 tux6127 kernel: [ 2735.532892] .. [<c042b09b>] .... _spin_lock+0x18/0x90
Nov 18 12:17:10 tux6127 kernel: [ 2735.532904] .....[<c0112ae9>] .. ( <= smp_show_regs+0x26/0x57)
Nov 18 12:17:10 tux6127 kernel: [ 2735.532909]
Nov 18 12:17:10 tux6127 kernel: [ 2735.532911] ----------- IPI show regs -----------
Nov 18 12:17:10 tux6127 kernel: [ 2735.532918] Pid: 0, comm: swapper
Nov 18 12:17:10 tux6127 kernel: [ 2735.532923] EIP: 0060:[<c02d6299>] CPU: 3
Nov 18 12:17:10 tux6127 kernel: [ 2735.532931] EIP is at acpi_safe_halt+0x26/0x32
Nov 18 12:17:10 tux6127 kernel: [ 2735.532935] EFLAGS: 00000246 Tainted: P (2.6.15-rc1-mm2)
Nov 18 12:17:10 tux6127 kernel: [ 2735.532939] EAX: 00000000 EBX: c02d62a5 ECX: 00000001 EDX: c2997000
Nov 18 12:17:10 tux6127 kernel: [ 2735.532943] ESI: f7abfc6c EDI: f7abfbf8 EBP: c2997f5c DS: 007b ES: 007b
Nov 18 12:17:10 tux6127 kernel: [ 2735.532948] CR0: 8005003b CR2: b7ef9310 CR3: 31a28000 CR4: 00000640
Nov 18 12:17:10 tux6127 kernel: [ 2735.532952] [<c0101155>] show_regs+0x146/0x16d
Nov 18 12:17:10 tux6127 kernel: [ 2735.532959] [<c0112afd>] smp_show_regs+0x3a/0x57
Nov 18 12:17:10 tux6127 kernel: [ 2735.532967] [<c0110a58>] smp_nmi_callback+0x69/0x7d
Nov 18 12:17:10 tux6127 kernel: [ 2735.532972] [<c0104cae>] do_nmi+0x4d/0x6b
Nov 18 12:17:10 tux6127 kernel: [ 2735.532978] [<c0103b0e>] nmi_stack_correct+0x1d/0x22
Nov 18 12:17:10 tux6127 kernel: [ 2735.532983] [<c02d63c9>] acpi_processor_idle+0x124/0x2c4
Nov 18 12:17:10 tux6127 kernel: [ 2735.532989] [<c0100e10>] cpu_idle+0x89/0x9f
Nov 18 12:17:10 tux6127 kernel: [ 2735.532994] [<c0111032>] start_secondary+0x17f/0x2ef
Nov 18 12:17:10 tux6127 kernel: [ 2735.532999] [<00000000>] 0x0
Nov 18 12:17:10 tux6127 kernel: [ 2735.533005] [<c2997fb4>] 0xc2997fb4
Nov 18 12:17:10 tux6127 kernel: [ 2735.533009] ---------------------------
Nov 18 12:17:10 tux6127 kernel: [ 2735.533012] | preempt count: 00020002 ]
Nov 18 12:17:10 tux6127 kernel: [ 2735.533015] | 2 level deep critical section nesting:
Nov 18 12:17:10 tux6127 kernel: [ 2735.533017] ----------------------------------------
Nov 18 12:17:10 tux6127 kernel: [ 2735.533020] .. [<c0100dc6>] .... cpu_idle+0x3f/0x9f
Nov 18 12:17:10 tux6127 kernel: [ 2735.533025] .....[<c0111032>] .. ( <= start_secondary+0x17f/0x2ef)
Nov 18 12:17:10 tux6127 kernel: [ 2735.533031] .. [<c042b0ef>] .... _spin_lock+0x6c/0x90
Nov 18 12:17:10 tux6127 kernel: [ 2735.533037] .....[<c0112ae9>] .. ( <= smp_show_regs+0x26/0x57)
Nov 18 12:17:10 tux6127 kernel: [ 2735.533042]
Nov 18 12:17:10 tux6127 kernel: [ 2735.533045] ----------- IPI show regs -----------<3>Debug: sleeping function called from invalid context at drivers/char/vt.c:2843
Nov 18 12:17:10 tux6127 kernel: [ 2735.533054]
Nov 18 12:17:10 tux6127 kernel: [ 2735.533056] in_atomic():1, irqs_disabled():1
Nov 18 12:17:10 tux6127 kernel: [ 2735.533060] Pid: 4238, comm: writetest
Nov 18 12:17:10 tux6127 kernel: [ 2735.533063] [<c0103df0>] EIP: 0060:[<c02a6841>] CPU: 2
Nov 18 12:17:10 tux6127 kernel: [ 2735.533068] dump_stack+0x1e/0x22
Nov 18 12:17:10 tux6127 kernel: [ 2735.533072] EIP is at _raw_spin_trylock+0xb/0x2d
Nov 18 12:17:10 tux6127 kernel: [ 2735.533076] [<c011b38e>] EFLAGS: 00000246 Tainted: P (2.6.15-rc1-mm2)
Nov 18 12:17:10 tux6127 kernel: [ 2735.533083] EAX: 00000001 EBX: c19589ec ECX: f73ad000 EDX: f1e7f9d0
Nov 18 12:17:10 tux6127 kernel: [ 2735.533087] __might_sleep+0xa7/0xafESI: f73ad000 EDI: b7c00000 EBP: f73adbf4
Nov 18 12:17:10 tux6127 kernel: [ 2735.533095] DS: 007b ES: 007b
Nov 18 12:17:10 tux6127 kernel: [ 2735.533098] [<c02f179d>] CR0: 8005003b CR2: b7fb8000 CR3: 31a28000 CR4: 00000640
Nov 18 12:17:10 tux6127 kernel: [ 2735.533104] do_unblank_screen+0x150/0x155 [<c0101155>]
Nov 18 12:17:10 tux6127 kernel: [ 2735.533109] [<c02f17b4>] show_regs+0x146/0x16d
Nov 18 12:17:10 tux6127 kernel: [ 2735.533114] unblank_screen+0x12/0x16 [<c0112afd>]
Nov 18 12:17:10 tux6127 kernel: [ 2735.533119] [<c0114cb0>] smp_show_regs+0x3a/0x57
Nov 18 12:17:10 tux6127 kernel: [ 2735.533123] bust_spinlocks+0x2c/0x54 [<c0110a58>]
Nov 18 12:17:10 tux6127 kernel: [ 2735.533129] [<c0112b13>] smp_nmi_callback+0x69/0x7d
Nov 18 12:17:10 tux6127 kernel: [ 2735.533134] smp_show_regs+0x50/0x57 [<c0104cae>]
Nov 18 12:17:10 tux6127 kernel: [ 2735.533139] [<c0110a58>] do_nmi+0x4d/0x6b
Nov 18 12:17:10 tux6127 kernel: [ 2735.533144] smp_nmi_callback+0x69/0x7d [<c0103b0e>]
Nov 18 12:17:10 tux6127 kernel: [ 2735.533149] [<c0104cae>] nmi_stack_correct+0x1d/0x22do_nmi+0x4d/0x6b
Nov 18 12:17:10 tux6127 kernel: [ 2735.533154]
Nov 18 12:17:10 tux6127 kernel: [ 2735.533156] [<c042b0aa>] [<c0103b0e>] _spin_lock+0x27/0x90nmi_stack_correct+0x1d/0x22
Nov 18 12:17:10 tux6127 kernel: [ 2735.533163]
Nov 18 12:17:10 tux6127 kernel: [ 2735.533166] [<c014bb29>] [<c02d63c9>] zap_pte_range+0x5b/0x2f7acpi_processor_idle+0x124/0x2c4
Nov 18 12:17:10 tux6127 kernel: [ 2735.533175]
Nov 18 12:17:10 tux6127 kernel: [ 2735.533178] [<c014be76>] [<c0100e10>] unmap_page_range+0xb1/0x117cpu_idle+0x89/0x9f
Nov 18 12:17:10 tux6127 kernel: [ 2735.533186]
Nov 18 12:17:10 tux6127 kernel: [ 2735.533188] [<c014bfb8>] [<c0111032>] unmap_vmas+0xdc/0x221
Nov 18 12:17:10 tux6127 kernel: [ 2735.533193] start_secondary+0x17f/0x2ef [<c014c1a3>]
Nov 18 12:17:10 tux6127 kernel: [ 2735.533199] [<00000000>] zap_page_range+0xa6/0x1100x0
Nov 18 12:17:10 tux6127 kernel: [ 2735.533204]
Nov 18 12:17:10 tux6127 kernel: [ 2735.533207] [<c014cd62>] [<c2997fb4>] unmap_mapping_range_vma+0x46/0xbb0xc2997fb4
Nov 18 12:17:10 tux6127 kernel: [ 2735.533215]
Nov 18 12:17:10 tux6127 kernel: [ 2735.533218] [<c014cf0a>] ---------------------------
Nov 18 12:17:10 tux6127 kernel: [ 2735.533222] | preempt count: 00020001 ]
Nov 18 12:17:10 tux6127 kernel: [ 2735.533226] unmap_mapping_range+0x133/0x1ed| 1 level deep critical section nesting:
Nov 18 12:17:10 tux6127 kernel: [ 2735.533232]
Nov 18 12:17:10 tux6127 kernel: [ 2735.533234] ----------------------------------------
Nov 18 12:17:10 tux6127 kernel: [ 2735.533237] [<c0147dc2>] .. [<c0100dc6>] .... invalidate_inode_pages2_range+0x1f4/0x22acpu_idle+0x3f/0x9f
Nov 18 12:17:10 tux6127 kernel: [ 2735.533245]
Nov 18 12:17:10 tux6127 kernel: [ 2735.533247] .....[<c0111032>] .. ( <= [<c0147e19>] start_secondary+0x17f/0x2ef)
Nov 18 12:17:10 tux6127 kernel: [ 2735.533254] invalidate_inode_pages2+0x21/0x28
Nov 18 12:17:10 tux6127 kernel: [ 2735.533258]
Nov 18 12:17:10 tux6127 kernel: [ 2735.533260] [<c01eba54>] nfs_file_direct_write+0x1c3/0x1ff
Nov 18 12:17:10 tux6127 kernel: [ 2735.533271] [<c01ca23e>] nfs_file_write+0x113/0x115
Nov 18 12:17:10 tux6127 kernel: [ 2735.533276] [<c015f99d>] do_sync_write+0xa7/0xe7
Nov 18 12:17:10 tux6127 kernel: [ 2735.533282] [<c015fa83>] vfs_write+0xa6/0x17d
Nov 18 12:17:10 tux6127 kernel: [ 2735.533287] [<c015fd42>] sys_pwrite64+0x7d/0x81
Nov 18 12:17:10 tux6127 kernel: [ 2735.533291] [<c0102e6f>] sysenter_past_esp+0x54/0x75
Nov 18 12:17:10 tux6127 kernel: [ 2735.533295] ---------------------------
Nov 18 12:17:10 tux6127 kernel: [ 2735.533297] | preempt count: 00020004 ]
Nov 18 12:17:10 tux6127 kernel: [ 2735.533299] | 4 level deep critical section nesting:
Nov 18 12:17:10 tux6127 kernel: [ 2735.533300] ----------------------------------------
Nov 18 12:17:10 tux6127 kernel: [ 2735.533303] .. [<c042b09b>] .... _spin_lock+0x18/0x90
Nov 18 12:17:10 tux6127 kernel: [ 2735.533307] .....[<c014ce6e>] .. ( <= unmap_mapping_range+0x97/0x1ed)
Nov 18 12:17:10 tux6127 kernel: [ 2735.533311] .. [<c014c127>] .... zap_page_range+0x2a/0x110
Nov 18 12:17:10 tux6127 kernel: [ 2735.533315] .....[<c014cd62>] .. ( <= unmap_mapping_range_vma+0x46/0xbb)
Nov 18 12:17:10 tux6127 kernel: [ 2735.533319] .. [<c042b09b>] .... _spin_lock+0x18/0x90
Nov 18 12:17:10 tux6127 kernel: [ 2735.533322] .....[<c014bb29>] .. ( <= zap_pte_range+0x5b/0x2f7)
Nov 18 12:17:10 tux6127 kernel: [ 2735.533326] .. [<c042b0ef>] .... _spin_lock+0x6c/0x90
Nov 18 12:17:10 tux6127 kernel: [ 2735.533330] .....[<c0112ae9>] .. ( <= smp_show_regs+0x26/0x57)
Nov 18 12:17:10 tux6127 kernel: [ 2735.533334]
next prev parent reply other threads:[~2005-11-18 17:26 UTC|newest]
Thread overview: 93+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20051115224645.27832.qmail@web34103.mail.mud.yahoo.com>
2005-11-15 23:47 ` mmap over nfs leads to excessive system load Kenny Simpson
2005-11-16 4:31 ` William Lee Irwin III
2005-11-16 6:05 ` Kenny Simpson
2005-11-16 7:45 ` Andrew Morton
2005-11-16 14:03 ` Trond Myklebust
2005-11-16 15:01 ` Kenny Simpson
2005-11-16 17:44 ` Trond Myklebust
2005-11-16 18:00 ` Andrew Morton
2005-11-16 18:34 ` Trond Myklebust
2005-11-16 18:38 ` Christoph Hellwig
2005-11-17 13:08 ` Nikita Danilov
2005-11-16 19:09 ` Andrew Morton
2005-11-16 20:05 ` Trond Myklebust
2005-11-16 20:56 ` Kenny Simpson
2005-11-16 21:02 ` Kenny Simpson
2005-11-16 21:09 ` Trond Myklebust
2005-11-16 21:17 ` Kenny Simpson
2005-11-16 21:41 ` Kenny Simpson
2005-11-16 21:57 ` Trond Myklebust
2005-11-16 22:04 ` Kenny Simpson
2005-11-16 22:39 ` Kenny Simpson
2005-11-16 23:06 ` Trond Myklebust
2005-11-17 15:40 ` Chuck Lever
2005-11-17 16:56 ` Kenny Simpson
2005-11-17 16:01 ` Kenny Simpson
2005-11-17 21:04 ` Andrew Morton
2005-11-17 21:15 ` Kenny Simpson
2005-11-18 16:55 ` Kenny Simpson
2005-11-18 17:26 ` Kenny Simpson [this message]
2005-11-18 21:57 ` Kenny Simpson
2005-11-21 17:13 ` infinite loop? with mmap, nfs, pwrite, O_DIRECT Kenny Simpson
2005-11-21 17:49 ` Chuck Lever
2005-11-21 18:40 ` Kenny Simpson
2005-11-21 20:39 ` Andrew Morton
2005-11-21 21:39 ` Kenny Simpson
2005-11-21 22:42 ` Trond Myklebust
2005-11-21 23:14 ` Kenny Simpson
2005-11-21 23:34 ` Andrew Morton
2005-11-21 23:58 ` Trond Myklebust
2005-11-22 0:09 ` Andrew Morton
2005-11-22 0:18 ` Trond Myklebust
2005-11-22 0:25 ` Trond Myklebust
2005-11-22 0:28 ` Andrew Morton
2005-11-22 0:49 ` Trond Myklebust
2005-11-30 20:04 ` nfs unhappiness with memory pressure Kenny Simpson
2005-11-30 21:42 ` Keith Mannthey
2005-11-30 22:18 ` Kenny Simpson
2005-12-01 14:49 ` Kenny Simpson
2005-12-05 18:01 ` Kenny Simpson
2005-12-05 19:44 ` Kenny Simpson
2005-12-05 20:14 ` Kenny Simpson
2005-12-05 20:13 ` Trond Myklebust
2005-12-05 20:33 ` Trond Myklebust
2005-12-05 20:52 ` Nick Piggin
2005-12-05 21:18 ` Trond Myklebust
2005-12-05 21:23 ` Trond Myklebust
2005-12-05 23:40 ` Nick Piggin
2005-12-06 0:48 ` Trond Myklebust
2005-12-05 21:51 ` Kenny Simpson
2005-12-05 21:04 ` Kenny Simpson
2005-12-05 22:39 ` Trond Myklebust
2005-12-06 3:36 ` Andrew Morton
2005-12-06 3:36 ` Andrew Morton
2005-12-06 4:40 ` Trond Myklebust
2005-12-06 5:42 ` Nick Piggin
2005-12-06 12:18 ` Trond Myklebust
2005-12-06 19:31 ` Kenny Simpson
2005-12-06 15:51 ` Kenny Simpson
2005-11-21 21:54 ` infinite loop? with mmap, nfs, pwrite, O_DIRECT Kenny Simpson
2005-11-21 20:12 ` Kenny Simpson
2005-11-17 17:02 ` mmap over nfs leads to excessive system load Chuck Lever
2005-11-17 17:07 ` Trond Myklebust
2005-11-18 19:59 ` Kenny Simpson
2005-11-16 21:31 ` Andrew Morton
2005-11-16 21:49 ` Trond Myklebust
2005-11-16 22:10 ` Andrew Morton
2005-11-16 22:23 ` Trond Myklebust
2005-11-16 22:38 ` Trond Myklebust
2005-11-16 22:50 ` Andrew Morton
2005-11-16 22:44 ` Andrew Morton
2005-11-16 23:10 ` Trond Myklebust
2005-11-17 0:06 ` Trond Myklebust
2005-11-17 0:25 ` Andrew Morton
2005-11-17 0:28 ` Trond Myklebust
2005-11-17 0:38 ` Andrew Morton
2005-11-17 0:47 ` Trond Myklebust
2005-11-16 18:48 ` Kenny Simpson
2005-11-16 19:06 ` Kenny Simpson
2005-11-08 19:25 Kenny Simpson
2005-11-08 20:01 ` Trond Myklebust
2005-11-08 20:18 ` Kenny Simpson
2005-11-08 20:57 ` Kenny Simpson
-- strict thread matches above, loose matches on Subject: below --
2005-11-08 18:47 Kenny Simpson
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