request at virtual address 56000050An error occurred during kernel access with 56000050来PGD = c3eb0000[56000050] *pgd=00000000Internal Error:oops:5 [#1]Modules linked In:first_drvCpu:0 not tainted (2.6.22.6 #1)PC is at first_drv_open+0x18 (offset of this instruction)/0x3c (total size of the function) [First_drv]The PC is the address of the instruction where the error occurredMost of the time, the PC value will only give an address, not to indicate in which functionLR is at chrdev_open+0x14c/0x1
-aliasing-fomit-frame-pointerEndif-Fstrict-aliasing indicates that the compiler does not direct different types of objects to the same address.-The fomit-frame-pointer option allows the compiler to save fp registers in function calls to improve efficiency.
3) directly optimize performance by replacing C language functions with AssemblyIfeq ($ (TARGET_ARCH), arm)PIXELFLINGER_SRC_FILES + = t32cb16blend. SEndif
4) perform special optimization on different ARM versionsIfeq ($ (TARGET_ARCH), arm)LOCA
Implementation Analysis of osctxsw Based on ARM920T:
First, you must understand that when porting uCOS-II to ARM920T, the following structure of the task stack is used:
Program list: Based onARM920TOfOsctxswImplementation AnalysisNote:ArmSave manuallyPCAndPsw
Osctxsw; Special optimised code below:1. Press the stack separately based on the task stack structure to save the site of the old taskStmf
1). Cam uses a digital camera to connect to the cinema. (Standard Edition)2 ). telesync (TS) uses external audio sources (usually the ear holes set for people with poor hearing ability on the cinema seat), and telesysnc (TS) it is the same as the label of cam. It is in an empty cinema, or using an operator's camera in the projection room. The quality of images is better than that of cam.3). telecine (TC) uses a digital phone to copy data directly from a video. The image and audio quality should
++, GDB, PCRE, PCRE-devel, gawk, make a total of 12 packages;
Test whether cygwin has been installed:
Run cygwin. In the displayed command line window, enter the cygcheck-C cygwin command to print the current cygwin version and running status. If the status is OK, cygwin runs normally.
Input gcc-version, G ++ -- version, make-version, and GDB-version in sequence for testing. If both print the published version and some description information, your cygwin installation is complete!
3. Configure
general HD conversion.Example: Stardust.2007.hdrip.x264.a720.ac3-c-silu.mkv (Stardust Hdrip version)under 8.bdrip--HD, the King of general sharpnessBDRip = Blue-ray Disc Rip, that is, Blu-ray HD conversion, the effect is better than hdrip.Example: awake.2007.bdrip.x264-tlf.mkv (BDRip version of the operation)9.r5--Impatient, you can see this.Most of the R5 are Russia's 5-zone edition, as the North American
kernel, you need to ensure that the extracted kernel code does not overwrite the original kernel image. And the entry address zrealaddr that sets the kernel code.. textADR R0, LC0Ldmia R0, {r1, R2, R3, R4, R5, R6, IP, SP}. Type LC0, #objectLC0:. Word LC0 @ r1. Word __bss_start @ r2. Word _end @ R3. Word zreladdr @ R4. Word _start @ R5. Word _got_start @ r6. Word _got_end @ IP. Word user_stack+4096 @ spThe
A file operation similar to a node, a key value format, There is already a R5 jar tool provided by Com.nikhaldimann, however, if the frequent operation and the attributes are particularly large, even if the common method of extraction is still to write a lot of code, is the entire structure of the code is bloated, and the attributes are particularly many cases, R5 tools will be slightly more trouble, so ini
the RAID group (the source disk), and [ E1:S1] is not a disk in a RAID group (destination disk)
4, Megacli-adpgetprop smartcpybkenbl-a0 when a disk appears the first smart error, you can do between this disk and hot spare copyback operation, hot spare as the destination disk, complete the copyback operation, The smart error disk is marked as a failed state.
5. If the RAID group is removed at Copyback, the destination disk is returned to the hot spare state or unconfigured good
Vi. Log
1, ch
_software_interrupt:. Word software_interrupt _prefetch_abort:.word Prefetch_abort _data_abort: .word data_abort _not_used: . Word not_used _IRQ: .word IRQ _fiq: .word Fiq _pad: .word 0x12345678/* Now 16*4=64 */#endif//Config_spl_build */. Word is the unique pseudo-operator for ARM assembly with the following syntax:. Word {,} ... Function: Inserts a 32-bit data queue. (Same as DCD in Armasm). BALIGNL 16,0xdeadbeef. Align pseudo-action is used to indicate alignment: the current positio
Although Network Performance Analysis in enterprises and the access market has traditionally focused on data forwarding performance, the current and next-generation routers need to analyze the scalability of the OSPF protocol. Once the implementation of OSPF is analyzed in an isolated manner, the data forwarding performance of the router needs to be evaluated under the condition of stable and changed routing information.
Displays the devices to be tested in a medium-sized enterprise network. R1
compress the video, or compress it into a multimedia file. Generally, DVDRip consists of AVI and Subtitle files.
HR-HDTV
Compared with DVDRip, The HR-HDTV adopts the MPEG4 compression technology such as DivX/Xvid/x264 to compress the video image with high quality, and then encapsulates the video and audio into one. avi or. the video format formed by adding the external subtitle file to the MKV file. The image quality is higher.
Hdrip
Hdrip = HD-DVD rip, that is, HD-DVD HD conversion, the
corresponding Uncached mming MMU [Luther. gliethttp].
LDR R5, = 0x1ff00000And R2, R2, R5; VA needs 512 MB, 1 MB aligned. // align the VA virtual address MB [Luther. gliethttp]// That is, the upper limit of R2 cannot exceed 0x20000000 or 512 M, because R10 now points to the 0x80000000 virtual address of the level 1 ing table,// Because the address 0x80000000 + 0x20000000 = 0xa0000000 is used to store the Un
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