On Tue, 2007-07-03 at 12:47 +0300, Jarkko Lavinen wrote:
> On Tue, Jun 19, 2007 at 11:00:54AM +0100, Richard Purdie wrote:
> > Its not a case of formatting the whole partition. The whole point of
> > this code is the following use case:
> >
> > 1. Device crashes
> > 2. Device reboots
> > 3. mtdoop
On Tue, Jun 19, 2007 at 11:00:54AM +0100, Richard Purdie wrote:
> Its not a case of formatting the whole partition. The whole point of
> this code is the following use case:
>
> 1. Device crashes
> 2. Device reboots
> 3. mtdoops partition has a log of why it crashed
The oops logger uses oops_in_p
On Tue, 2007-06-19 at 11:52 +0100, Richard Purdie wrote:
> > Error
> > code means that something very bad and sever is going on and you have to
> > just refuse working with this device.
>
> In this case, it will just move on to the next EB. There is code to
> handle no available EBs at which poin
On Tue, 2007-06-19 at 13:29 +0300, Artem Bityutskiy wrote:
> On Tue, 2007-06-19 at 11:00 +0100, Richard Purdie wrote:
> > > Well, mtd->block_isbad() may return error, unlikely, bu still. You also
> > > ignore the error at other places.
> >
> > Ignoring that is deliberate since it doesn't really ma
On Tue, 2007-06-19 at 11:00 +0100, Richard Purdie wrote:
> On Tue, 2007-06-19 at 10:55 +0300, Artem Bityutskiy wrote:
> > On Mon, 2007-06-18 at 17:31 +0100, Richard Purdie wrote:
> > > + if (mtd->erasesize < OOPS_PAGE_SIZE)
> > > + erase.len = OOPS_PAGE_SIZE;
> >
> > It seems to me that yo
On Tue, 2007-06-19 at 10:55 +0300, Artem Bityutskiy wrote:
> On Mon, 2007-06-18 at 17:31 +0100, Richard Purdie wrote:
> > + if (mtd->erasesize < OOPS_PAGE_SIZE)
> > + erase.len = OOPS_PAGE_SIZE;
>
> It seems to me that your code won't work if mtd->erasesize <
> OOPS_PAGE_SIZE anyway, s
On Mon, 2007-06-18 at 17:31 +0100, Richard Purdie wrote:
> +static int mtdoops_erase_block(struct mtd_info *mtd, int offset)
> +{
> + struct erase_info erase;
> + DECLARE_WAITQUEUE(wait, current);
> + wait_queue_head_t wait_q;
> + int ret;
> +
> + init_waitqueue_head(&wait_q);
>
On Mon, 2007-06-18 at 17:31 +0100, Richard Purdie wrote:
> +static int mtdoops_erase_block(struct mtd_info *mtd, int offset)
> +{
> + struct erase_info erase;
> + DECLARE_WAITQUEUE(wait, current);
> + wait_queue_head_t wait_q;
> + int ret;
> +
> + init_waitqueue_head(&wait_q);
>
Kernel oops and panic messages are invaluable when debugging crashes.
These messages often don't make it to flash based logging methods (say a
syslog on jffs2) due to the overheads involved in writing to flash.
This patch allows you to turn an MTD partition into a circular log
buffer where kernel
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