Re: What flash disks are supported?

2001-07-06 Thread Alexandr Andreev
Catalin BOIE wrote: >Hi, guys! > >Please, can you tell me your (in)success stories about some flash disks? >Thanks! > A MTD flash device database is now available at: http://www.embeddedlinuxworks.com/db.html - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body

Re: What flash disks are supported?

2001-07-06 Thread Alexandr Andreev
Catalin BOIE wrote: Hi, guys! Please, can you tell me your (in)success stories about some flash disks? Thanks! A MTD flash device database is now available at: http://www.embeddedlinuxworks.com/db.html - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a

Re: about linux mips ext2fs

2001-06-28 Thread Alexandr Andreev
Barry Wu wrote: > >I want port linux to our mipsel system. The kernel >can work and system stop at mount root file system. >I download root file system for mipsel from MIPS >company. Because our system have no ethernet >interface, >I have to copy root file system directly to our hard >disk. I

Re: about linux mips ext2fs

2001-06-28 Thread Alexandr Andreev
Barry Wu wrote: I want port linux to our mipsel system. The kernel can work and system stop at mount root file system. I download root file system for mipsel from MIPS company. Because our system have no ethernet interface, I have to copy root file system directly to our hard disk. I put hard

Re: about mips linux root file system

2001-06-25 Thread Alexandr Andreev
Qingbo Wu wrote: > >I think if I can use ramdisk using serail port. I do not know >how to combine kernel image with ramdisk root file image. >And where can I get small size root file image for mipsel? >If someone knows, please help me. >Thanks in advance! > There is a way which i use. Take a

Re: about mips linux root file system

2001-06-25 Thread Alexandr Andreev
Qingbo Wu wrote: I think if I can use ramdisk using serail port. I do not know how to combine kernel image with ramdisk root file image. And where can I get small size root file image for mipsel? If someone knows, please help me. Thanks in advance! There is a way which i use. Take a look at

Re: how to patch driver into kernel

2001-06-19 Thread Alexandr Andreev
[EMAIL PROTECTED] wrote: >hi: > I write a serial driver for linux , and have a personal test . I went >to patch this driver into kernel >but I don't know how to contact serial.c author .. >can any one help me ? > rich.liu > For

Re: Using cramfs as root filesystem on diskless machine

2001-06-19 Thread Alexandr Andreev
David L. Parsley wrote >>... >>RAMDISK driver initialized: 16 RAM disks of 4096K size 4096 blocksize >> > ^ >You also need to give the kernel 'ramdisk_size='. I've used >larger cramfs initrd's with no problem, but the kernel has to make

Re: Using cramfs as root filesystem on diskless machine

2001-06-19 Thread Alexandr Andreev
David L. Parsley wrote: >Mathias Killian wrote a patch to allow cramfs initrd's, see: >http://www.cs.helsinki.fi/linux/linux-kernel/2001-01/1064.html > Thank you. I applied this patch, and recompiled my kernel. All works fine, if the size of root filesystem less than 4096Kb. But when i create

Re: Using cramfs as root filesystem on diskless machine

2001-06-19 Thread Alexandr Andreev
David L. Parsley wrote: Mathias Killian wrote a patch to allow cramfs initrd's, see: http://www.cs.helsinki.fi/linux/linux-kernel/2001-01/1064.html Thank you. I applied this patch, and recompiled my kernel. All works fine, if the size of root filesystem less than 4096Kb. But when i create an

Re: Using cramfs as root filesystem on diskless machine

2001-06-19 Thread Alexandr Andreev
David L. Parsley wrote ... RAMDISK driver initialized: 16 RAM disks of 4096K size 4096 blocksize ^ You also need to give the kernel 'ramdisk_size='. I've used larger cramfs initrd's with no problem, but the kernel has to make larger

Re: how to patch driver into kernel

2001-06-19 Thread Alexandr Andreev
[EMAIL PROTECTED] wrote: hi: I write a serial driver for linux , and have a personal test . I went to patch this driver into kernel but I don't know how to contact serial.c author .. can any one help me ? rich.liu For future

Re: Using cramfs as root filesystem on diskless machine

2001-06-15 Thread Alexandr Andreev
David Woodhouse wrote: >It's not polite to respond to private messages in public fora. > >On Fri, 15 Jun 2001, Alexandr Andreev wrote: > >>Bootloader only jumps to the kernel entry point. The initrd image is >>compiled inside the kernel. >> > >So i

Re: Using cramfs as root filesystem on diskless machine

2001-06-15 Thread Alexandr Andreev
Hi, David. David Woodhouse wrote: >Where does the bootloader get the initrd from? > Bootloader only jumps to the kernel entry point. The initrd image is compiled inside the kernel. ( special section in the ELF kernel binary ) .config: ... CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_SIZE=8192

Using cramfs as root filesystem on diskless machine

2001-06-15 Thread Alexandr Andreev
Hi, list. My MIPS machine has no any disks or flopies. So i obliged to use a RAM disk with a file system on it, which is mounted as root. I use gzipped initrd image, which is linked to the special section in the kernel during compilation. Now, the RAM disk size is really big, so i decide to use

Using cramfs as root filesystem on diskless machine

2001-06-15 Thread Alexandr Andreev
Hi, list. My MIPS machine has no any disks or flopies. So i obliged to use a RAM disk with a file system on it, which is mounted as root. I use gzipped initrd image, which is linked to the special section in the kernel during compilation. Now, the RAM disk size is really big, so i decide to use

Re: Using cramfs as root filesystem on diskless machine

2001-06-15 Thread Alexandr Andreev
Hi, David. David Woodhouse wrote: Where does the bootloader get the initrd from? Bootloader only jumps to the kernel entry point. The initrd image is compiled inside the kernel. ( special section in the ELF kernel binary ) .config: ... CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_SIZE=8192

Re: Using cramfs as root filesystem on diskless machine

2001-06-15 Thread Alexandr Andreev
David Woodhouse wrote: It's not polite to respond to private messages in public fora. On Fri, 15 Jun 2001, Alexandr Andreev wrote: Bootloader only jumps to the kernel entry point. The initrd image is compiled inside the kernel. So it's in a ROM or flash chip? Why copy it into memory

Does anybody know, where is the MIPS linux mailing list ?

2001-06-05 Thread Alexandr Andreev
Hi all! I need to ask some questions about linux-2.4.3 for MIPS. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at

Does anybody know, where is the MIPS linux mailing list ?

2001-06-05 Thread Alexandr Andreev
Hi all! I need to ask some questions about linux-2.4.3 for MIPS. - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at

Re: Disabling interrupts before block device request call

2001-05-28 Thread Alexandr Andreev
Jens Axboe wrote > >Even with dropping io_request_lock, it's not recommended to sleep inside >the request_fn. WIth plugging, you are basically preventing the other >plugged queues from being run until you return. > >You could use a timer or similar to call you on a specified timeout >instead. >

Re: Disabling interrupts before block device request call

2001-05-28 Thread Alexandr Andreev
Jens Axboe wrote Even with dropping io_request_lock, it's not recommended to sleep inside the request_fn. WIth plugging, you are basically preventing the other plugged queues from being run until you return. You could use a timer or similar to call you on a specified timeout instead. Does it

Disabling interrupts before block device request call

2001-05-25 Thread Alexandr Andreev
Hi, list In ll_rw_block.c, before calling block device specific request function ( i mean do_hd_request, do_ftl_request, ... ) the io_request_lock is locking, and all interrupts are disabling. I know, that request handler routine have to be atomic, but when we read data from a flash device (

Disabling interrupts before block device request call

2001-05-25 Thread Alexandr Andreev
Hi, list In ll_rw_block.c, before calling block device specific request function ( i mean do_hd_request, do_ftl_request, ... ) the io_request_lock is locking, and all interrupts are disabling. I know, that request handler routine have to be atomic, but when we read data from a flash device (