http://blog.gmane.org/gmane.linux.newbie hourly 1 1901-01-01T00:00+00:00 http://gmane.org/img/gmane-25t.png http://gmane.org http://comments.gmane.org/gmane.linux.newbie/9437 <pre>I can get kdump to work with encrypted root in kvm, but not on raw iron. Can anyone help me figure out how to get it working? -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo&lt; at &gt;vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs </pre> Joseph D. Wagner 2013-05-20T05:28:11 http://comments.gmane.org/gmane.linux.newbie/9436 <pre>I am trying to use duplicity to backup my /home to an external hard drive (usb 2 interface). After running for a few minutes, my io slows to a crawl. My system reports using about 300-400MB of swap, even though only about 600MB / 4GB is in use. I am trying to isolate the cause. It may be duplicity in conjunction with the particulars of my configuration (see below). I get good performance under normal circumstances. I am using fedora 18, which has /tmp mounted using tmpfs, but duplicity never uses more than 1.0GB - 1.1GB. First, is this the correct forum for asking for this kind of help? Second, what information The particulars of my configuration: sda1 -&gt; win7 hidden boot sda2 -&gt; win7 regular sda3 -&gt; grub2 boot sda5 -&gt; luks swap sda6 -&gt; luks ext4 root sda7 -&gt; regular ext4 data sdb1 -&gt; luks userdata1 -&gt; md raid 0 with userdata1 &amp; userdata2-&gt; ext4 home sdc1 -&gt; luks userdata2 -&gt; md raid 0 with userdata1 &amp; userdata2-&gt; ext4 home My thinking in putting md raid on top of luks was that I would be able to better use multithreading (2 luks, 1 per physical drive), whereas putting luks on top of md raid might create a choke point (1 luks for 1 virtual drive). I'll admit that this might be the problem. However, it works fine under normal circumstances. I was hoping someone could help me either 1) isolate what is causing the swapping, or 2) tell me what is wrong with my configuration based upon their knowledge of how the kernel works. Thanks in advance. Joseph D. Wagner -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo&lt; at &gt;vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs </pre> Joseph D. Wagner 2013-05-13T23:28:25 http://comments.gmane.org/gmane.linux.newbie/9435 <pre>RE: UN COMPENSATION GRANT VALUE: US$500,000.00 VALIDATION NO: UN/CG/IMF/WB/TD/013C The United Nations through our monitoring works uncovered that you have sent so much with Western Union, Money gram, Bank to Bank Transfers in the pursuit of your Contract - Inheritance Project, Lotto/Lottery(s). As a result we have resolved at aiding you with the sum of US$500,000.00 to enable patch up with your life again. As a result, you are required to fill out the followings: 1: FULL NAME: 2: HOUSE ADDRESS : 3: MOBILE/CELL PHONE NUMBER: 4: MODE OF PAYMENT: 5. OCCUPATION: 6. DATE OF BIRTH: 7. MARITAL STATUS; 8. NUMBER OF CHILDREN: Let me hear from you immediately you have received this mail. Reply me on (vdwilfred&lt; at &gt;gmail.com) Yours faithfully, Denis Wilfred Coordinator UN Compensation Grant Agency -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo&lt; at &gt;vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs </pre> Denis Wilfred 2013-05-08T11:59:05 http://comments.gmane.org/gmane.linux.newbie/9428 <pre>Hi, I have an embedded system running 2.6.33 cross compiled for ARM OMAP with 1 GHZ uni-processor system. The application has many threads and processes (around 15 total). In that 1 thread is time critical and must run every interval confiurable as 2, 4 or 8 milli sec etc. There is another thread which transfers Images to a FTP or to HMI etc, whoever requested the image. With this image transfer enabled my critical process misses the deadline and timesout. This critical thread is at RR priority 50. I used a HR timer thread with RR pri 55 to wakeup the critical thread every 1 milli sec to do the job. If image transfer is enabled i see that real time thread misses deadlines. All traffic is flowing on common ethernet connection. Does it affect in any way ? How to find out where the kernel is waiting or delaying to schedule the critical thread even though it is at higher RR priority. How to measure the latency ? I am trying to use Oprofile tool, but got some error in cross compiling. Doesn't these tools add their own latency to the original problem ? Any tools ? which one is better. Please provide your input on this. Regards Ashoka. K -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo&lt; at &gt;vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs </pre> Ashoka K 2013-04-30T08:27:21 http://comments.gmane.org/gmane.linux.newbie/9425 <pre>Hi, I have a question on spinlock_irqsave api. Am not sure if this is the right place to ask. Any help is highly appreciated. let me know if my understanding is correct? spinlock_irqsave() &lt;== Disables the IRQ? &lt;== No IRQs (that means no KB interrupt,Interrupts from touch screen... etc..) spinlock_irqrestore() Is my understanding correct? So the "time spend between spinlock_irqsave and spinlock_restore should be very short? For example there should not be something like this? Am i correct? spinlock_irqsave() mdelay(1000); spinlock_irqrestore() Also, what is meant by "spinlock_irqsave" disabled irq locally? What is locally here? Thanks, Ryan -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo&lt; at &gt;vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs </pre> Ryan 2013-04-29T08:30:48 http://comments.gmane.org/gmane.linux.newbie/9422 <pre>There is a random probability that cause the kernel panic (debian with kernel 3.2.41), when I execute: "sudo umount /media/data /media/big". Things are like this: I use "udisks --mount /dev/sda3" to mount "data" which is a ntfs filesystem. similarly, I use "udisks --mount /dev/wd5000bpvt/big" to mount "big" which is a ext4 filesystem. After finish using these filesystems, I use "sudo umount /media/data /media/big" to umount the filesystems, and the hole system just suddenly halt (mouse is not moving). using alt-sysrq-b to reboot the system. nothing record in the /var/log/messages. So, How could I record the kernel error/info, when system was halt ? Thanks a lot! -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo&lt; at &gt;vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs </pre> disnoir 2013-04-24T17:18:24 http://comments.gmane.org/gmane.linux.newbie/9421 <pre> At boot stage ,the process 1 will execute '/bin/sh' . as it needs ld.so to help loading other .so , it loads ld.so into memory and execute ld.so first . My question is when and how does ld.so transfer its execution to code of /bin/sh ? Thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo&lt; at &gt;vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs </pre> ishare 2013-04-06T13:46:47 http://comments.gmane.org/gmane.linux.newbie/9419 <pre>Hello , As discussed in this[1] discussion, i am reserving a memory chunk at the boot time using a kernel boot parameter memmap=8G$64G I have written a character driver [2] kernel module which , during initialization does a ioremap of this reserved memory chunk. As explained here , in my driver mmap all i need to do is remap_pfn_range for this memory chunk pointer returned by the ioremap. I am running this on 3.x linux kernel. My user space application opens this memory chunk as a device mounted by the driver. When i do mmap from the use space application i see a system hang. my dmesg don't provide me much information. So questions are : 1 ) Does remap_pfn_range function have some upper limit on the size of the memory that can be remaped to ? Note that i am trying to reserve a comparatively large chunks of memory at the boot time of the order of 64GB to about 150GB. The system can have 128 to 256 GB of ram. 2) I tried by disabling the ioremap from the initialization and thus directly doing the page frame numbers remapping in the mmap ioctl routing. But that also results in a hang. 3) I tried with a page-fault handler , but that doesn't seem to help either. Regards, -Jay P.S. code can be found here [4] [1] http:// stackoverflow.com/q/1911473/143897 [2] http:// pete.akeo.ie/2011/08/writing-linux-device-driver-for-kernels.html [3] http:// www. linuxquestions.org/questions/linux-kernel-70/mmap-of-several-gb-of-reserved-memory-using-805818/#post3972954 [4] http:// stackoverflow.com/questions/12790382/mapping-memory-reserved-by-mmap-kernel-boot-param-into-user-space -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo&lt; at &gt;vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs </pre> Jayram Déshpandé 2013-04-01T05:11:56 http://comments.gmane.org/gmane.linux.newbie/9416 <pre> After kernel mount the real device to "/" , is the initramfs still usefull ? If so ,it is mounted at which entry? At the end stage of boot , kernel will execute a init file , whether this file locates at initramfs address space *or* the device mounted at "/" ? I feel confused of this point . -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo&lt; at &gt;vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs </pre> ishare 2013-03-30T09:11:13 http://comments.gmane.org/gmane.linux.newbie/9414 <pre> why I have not find the definiton of ntohl in kernel source ? is there anyone can give some clues to me ? thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo&lt; at &gt;vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs </pre> ishare 2013-03-29T11:33:22 http://comments.gmane.org/gmane.linux.newbie/9413 <pre> Can I mount two different device on the same dir ? If I first mount a superblock of vitual filesystem on / , then I mount another real device /dev/sda1 also on / , then, if I type " ls / " command , Are all files in the two device show up to me? thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo&lt; at &gt;vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs </pre> ishare 2013-03-27T13:17:03 http://comments.gmane.org/gmane.linux.newbie/9412 <pre>nice to meet you hello dear my name is miss joy i am looking for friendship i will like you to write back so that i will tell you more about me and also send you my pictures.thanks -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo&lt; at &gt;vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs </pre> joywili 2013-03-26T14:26:47 http://comments.gmane.org/gmane.linux.newbie/9411 <pre> At user level ,is there system interface to help printing the call stack of one system api ? for example: I want to print the send/receive call stack from kernel , is there helper for user application to achieve this? thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo&lt; at &gt;vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs </pre> ishare 2013-03-26T13:21:48 http://comments.gmane.org/gmane.linux.newbie/9404 <pre> If I send a buffer with tcp protocol , the data is separated to serveral packets , each packet will have a seq number with it ,which ensures the recipient read this buffer in right orfer . my question is : how the recipient know which is the end packet of this queue ? Is there data indicate the total quantity of packets composing this buffer ? thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo&lt; at &gt;vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs </pre> ishare 2013-03-22T13:30:08 http://comments.gmane.org/gmane.linux.newbie/9403 <pre> BUSINESS OPPORTUNITY VIEW THE ATTACHMENT </pre> BUSINESS PROPOSAL 2013-03-20T11:33:25 http://comments.gmane.org/gmane.linux.newbie/9402 <pre>As the title indicates, I want to know how to add a system call under the source code of version 3.8.2, As It really puzzles me a lot on how the sys_call_table get initialized, Thanks. -------------------------------------------------------------- BUAA, Beijing China-- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo&lt; at &gt;vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs </pre> ZHANG, Benlong 2013-03-20T02:12:07 http://comments.gmane.org/gmane.linux.newbie/9401 <pre> If do not set -O2 to kernel compile option , I will get somw error aue to several symboles is undefined reference to ,for example: in ext3/super.c : undefined reference to `ntohl' I take a lppk at the definition in source code for ntohl, it seems affected by the __OPTIMIZE__ macro , which make this symbole defined as a macro .just like this : #define ntohl(x) ___ntohl(x) But if I do not define __OPTIMIZE__ ,which means I need not any optimization, How can I compile successfully? Is there the corresponding ntohl() function in kernel ? I kave not found that yet. Does this mean I must use __OPTIMIZE__ by -O2 ? thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo&lt; at &gt;vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs </pre> ishare 2013-03-19T04:39:20 http://comments.gmane.org/gmane.linux.newbie/9400 <pre> Need I set "root_fs_names=xxx" at grub booting command line? If I have not pass root_fs_names to kernel,which filesystem will be used to mount /dev/root? thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo&lt; at &gt;vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs </pre> ishare 2013-03-18T11:44:47 http://comments.gmane.org/gmane.linux.newbie/9397 <pre>Is there much of a difference between these two lists? -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo&lt; at &gt;vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs </pre> Raymond Jennings 2013-03-15T13:48:40 http://comments.gmane.org/gmane.linux.newbie/9396 <pre> there is a member *i_dentry* with type list_head in struct inode , what is the use of it ? after doing inode_init() , in the inode_cache , is every inode and thier i_dentry member valid and can be linked to other list_head? thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo&lt; at &gt;vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs </pre> ishare 2013-03-15T04:21:17 http://comments.gmane.org/gmane.linux.newbie/9395 <pre> At boot stage , my kernel get into loop restart due to page_fault. I have catched the source . here is the backtrace : #3 0xc01c686e in new_inode (sb=0xc8df5800) at fs/inode.c:551 #4 0xc01d076d in get_sb_pseudo (fs_type=0xc02e1d00, name=0xc02c3747 "futex", ops=0x0, magic=195894762) at fs/libfs.c:201 #5 0xc015cbbf in futexfs_get_sb (fs_type=0xc02e1d00, flags=0, dev_name=0xc02c374d "futexfs", data=0x0) at kernel/futex.c:679 #6 0xc01a62c5 in do_kern_mount (fstype=0xc02c374d "futexfs", flags=0, name=0xc02c374d "futexfs", data=0x0) at fs/super.c:718 code at the frame 3 is : struct inode *root = new_inode(s); after return from the new_inode , the root-&gt;i_dentry=(0x1,0x3). then calling the function d_instantiate(entry, root),here entry is of type struct entry*, this calls do list_add(&amp;entry-&gt;d_alias, root-&gt;i_dentry), Obviously,this need to address the inode-&gt;i_dentry-&gt;next,which is ox3, but 0x3 is low address ,addressing to it causes a page_fault ,then make system restart . I doubt that the returned root inode need to be initialized using a applicable i_dentry . If so ,what value can be used ? If not , where am I wrong? thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo&lt; at &gt;vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs </pre> ishare 2013-03-11T01:10:40 Search the mailing list at Gmane query http://search.gmane.org/?group=$group=gmane.linux.newbie