From: 秦弋戈 <michaelbest002@126.com>
To: kernelnewbies <kernelnewbies@kernelnewbies.org>
Cc: linux-mm <linux-mm@kvack.org>
Subject: Why page fault handler behaved this way? Please help!
Date: Thu, 30 Oct 2014 15:10:52 +0800 (CST) [thread overview]
Message-ID: <771b3575.1fa3f.1495fe48476.Coremail.michaelbest002@126.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 1122 bytes --]
Dear all,
I am a kernel newbie who want's to learn more about memory management. Recently I'm doing some experiment on page fault handler. There happened something that I couldn't understand.
From reading the book Understanding the Linux Kernel, I know that the kernel loads a page as late as possible. It's only happened when the program has to reference (read, write, or execute) a page yet the page is not in memory.
However, when I traced all page faults in my test program, I found something strange. My test program is large enough, but there are only two page faults triggered in the code segment of the program, while most of the faults are not in code segment.
At first I thought that perhaps the page is not the normal 4K page. Thus I turned off the PAE support in the config file. But the log remains unchanged.
So why are there only 2 page faults in code segment? It shouldn't be like this in my opinion. Please help me.
The attachment is my kernel log. Limited by the mail size, I couldn't upload my program, but I believe that the log is clear enough.
Thank you very much.
Best regards
[-- Attachment #2: kernel_log --]
[-- Type: application/octet-stream, Size: 20723 bytes --]
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725730] Mapping result of ./rxpm
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725733] mm struct =========================.
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725735] No. 0 vma ----------
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725737] vm_start = 8048000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725739] vm_end = 806a000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725740] vm_flags = 874
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725742] No. 1 vma ----------
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725743] vm_start = 806a000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725745] vm_end = 806c000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725746] vm_flags = 100873
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725748] No. 2 vma ----------
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725749] vm_start = b7761000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725751] vm_end = b7763000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725752] vm_flags = 4044401
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725754] No. 3 vma ----------
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725755] vm_start = b7763000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725756] vm_end = b7764000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725758] vm_flags = 40075
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725759] No. 4 vma ----------
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725761] vm_start = b7764000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725762] vm_end = b7784000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725764] vm_flags = 875
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725765] No. 5 vma ----------
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725766] vm_start = b7784000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725768] vm_end = b7786000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725769] vm_flags = 100873
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725771] No. 6 vma ----------
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725772] vm_start = bfc11000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725774] vm_end = bfc33000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725775] vm_flags = 100173
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725777] mm struct end ======================
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725777]
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725780] A rxpm program started! pid = 2948.
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725782] filename = ./rxpm
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725785] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725787] error_code = 4
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725788] address = b77651a0
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725790] ip = b77651a0
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725791] vm_flags = 875
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725793] vm_start = b7764000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725799] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725801] error_code = 4
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725802] address = b777ce88
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725804] ip = b777ce88
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725805] vm_flags = 875
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725807] vm_start = b7764000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725811] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725813] error_code = 6
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725814] address = b7784ea0
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725815] ip = b7768b99
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725817] vm_flags = 100873
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725818] vm_start = b7784000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725828] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725830] error_code = 4
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725831] address = 8048034
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725832] ip = b7765c21
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725834] vm_flags = 874
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725835] vm_start = 8048000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725844] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725845] error_code = 4
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725846] address = 806af0c
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725848] ip = b7765d8b
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725849] vm_flags = 100873
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725851] vm_start = 806a000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725855] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725856] error_code = 4
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725858] address = b776301c
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725859] ip = b7765f82
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725861] vm_flags = 40075
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725862] vm_start = b7763000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725877] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725879] error_code = 6
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725880] address = b775f004
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725881] ip = b776beab
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725883] vm_flags = 100073
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725884] vm_start = b775f000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725889] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725891] error_code = 6
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725892] address = b7760838
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725894] ip = b777cd56
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725895] vm_flags = 100073
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725896] vm_start = b775f000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725901] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725902] error_code = 7
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725904] address = 806af78
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725905] ip = b77667ef
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725907] vm_flags = 100873
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725908] vm_start = 806a000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725917] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725918] error_code = 6
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725920] address = bfc30ffc
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725921] ip = b776c2c5
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725922] vm_flags = 100173
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725924] vm_start = bfc11000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725995] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725997] error_code = 4
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.725998] address = b774a000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726000] ip = b777cab0
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726001] vm_flags = 71
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726002] vm_start = b774a000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726012] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726014] error_code = 4
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726015] address = b775bacc
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726017] ip = b7778a7a
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726018] vm_flags = 71
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726020] vm_start = b774a000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726046] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726048] error_code = 6
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726050] address = b7746edc
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726051] ip = b777cc37
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726052] vm_flags = 100073
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726054] vm_start = b7744000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726062] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726063] error_code = 4
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726065] address = b7745d9c
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726066] ip = b776aa93
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726068] vm_flags = 100073
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726069] vm_start = b7744000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726073] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726074] error_code = 7
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726076] address = b7745dc8
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726077] ip = b776aaa8
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726079] vm_flags = 100073
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726080] vm_start = b7744000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726085] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726087] error_code = 4
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726088] address = b75961b8
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726090] ip = b776e75b
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726091] vm_flags = 75
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726092] vm_start = b7596000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726098] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726100] error_code = 4
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726101] address = b75a8f41
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726103] ip = b777c364
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726104] vm_flags = 75
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726106] vm_start = b7596000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726118] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726119] error_code = 6
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726120] address = b7595000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726122] ip = b7764c4b
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726123] vm_flags = 100073
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726125] vm_start = b7595000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726132] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726134] error_code = 7
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726135] address = b77441cc
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726136] ip = b776f451
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726138] vm_flags = 100073
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726139] vm_start = b7744000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726177] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726179] error_code = 4
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726180] address = b7614820
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726182] ip = b7614820
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726183] vm_flags = 75
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726185] vm_start = b7596000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726190] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726192] error_code = 4
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726193] address = b76c41f3
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726195] ip = b76c41f3
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726196] vm_flags = 75
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726198] vm_start = b7596000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726203] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726204] error_code = 4
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726206] address = b77496c0
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726207] ip = b761482c
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726208] vm_flags = 100073
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726210] vm_start = b7747000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726213] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726214] error_code = 7
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726215] address = b77496c4
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726217] ip = b75afcdc
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726218] vm_flags = 100073
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726220] vm_start = b7747000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726224] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726226] error_code = 4
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726227] address = b762f880
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726229] ip = b762f880
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726230] vm_flags = 75
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726232] vm_start = b7596000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726261] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726262] error_code = 6
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726264] address = b7747e24
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726265] ip = b75af7d6
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726267] vm_flags = 100073
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726268] vm_start = b7747000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726271] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726273] error_code = 4
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726274] address = b7687d50
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726276] ip = b7687d50
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726277] vm_flags = 75
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726278] vm_start = b7596000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726284] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726286] error_code = 4
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726287] address = b75bdf70
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726288] ip = b75bdf70
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726290] vm_flags = 75
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726291] vm_start = b7596000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726298] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726299] error_code = 4
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726300] address = b75c81d0
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726302] ip = b75c81d0
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726303] vm_flags = 75
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726305] vm_start = b7596000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726310] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726311] error_code = 4
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726313] address = b76fb830
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726314] ip = b762efd8
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726316] vm_flags = 75
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726317] vm_start = b7596000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726329] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726331] error_code = 4
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726332] address = 805dbf0
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726333] ip = 805dbf0
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726335] vm_flags = 874
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726336] vm_start = 8048000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726344] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726346] error_code = 4
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726347] address = b760a6a0
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726349] ip = b760a6a0
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726350] vm_flags = 75
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726351] vm_start = b7596000
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726358] Page fault in rxpm! info ========
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726359] error_code = 4
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726361] address = b7650b14
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726362] ip = b7650b14
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726363] vm_flags = 75
Oct 29 20:25:59 Michael-HP-Compaq-6280-Pro-MT-PC kernel: [14296.726365] vm_start = b7596000
[-- Attachment #3: Type: text/plain, Size: 169 bytes --]
_______________________________________________
Kernelnewbies mailing list
Kernelnewbies@kernelnewbies.org
http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
next reply other threads:[~2014-10-30 7:10 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-30 7:10 秦弋戈 [this message]
2014-11-04 12:41 ` Why page fault handler behaved this way? Please help! Mulyadi Santosa
2014-11-04 13:13 ` Kirill A. Shutemov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=771b3575.1fa3f.1495fe48476.Coremail.michaelbest002@126.com \
--to=michaelbest002@126.com \
--cc=kernelnewbies@kernelnewbies.org \
--cc=linux-mm@kvack.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).