On Monday, November 23, 2015 at 17:32 UTC+8, Maxime Ripard wrote:
> On Mon, Nov 23, 2015 at 10:51:15PM -0800, Sugar Wu wrote:
>> On Monday, November 23, 2015 at 8:43:59 PM UTC+8, Maxime Ripard wrote:
>>>
>>> Hi,
>>>
>>> On Mon, Nov 23, 2015 at 09:02:48AM +0100, Josef Gajdusek wrote:
Add a no
于 2013年03月14日 22:05, Greg KH 写道:
On Thu, Mar 14, 2013 at 09:51:34PM +0800, Shuge wrote:
Hi all,
When the kernel printk too many log, the cpu is failed to come online.
The problem is this:
For example, cpu0 bring up cpu1:
a. cpu0 call cpu_up:
cpu_up()
->_cpu
Hi all,
When the kernel printk too many log, the cpu is failed to come online.
The problem is this:
For example, cpu0 bring up cpu1:
a. cpu0 call cpu_up:
cpu_up()
->_cpu_up()
->__cpu_notify(CPU_UP_PREPARE)
->__cpu_up()
->boot_seco
Hi all
The bounce accept slab pages from jbd2, and flush dcache on them.
When enabling VM_DEBUG, it will tigger VM_BUG_ON in page_mapping().
So, check PageSlab to avoid it in __blk_queue_bounce().
Bug URL: http://lkml.org/lkml/2013/3/7/56
...
..
That sure is strange. I didn't see any o
The bounce accept slab pages from jbd2, and flush dcache on them.
When enabling VM_DEBUG, it will tigger VM_BUG_ON in page_mapping().
So, check PageSlab to avoid it in __blk_queue_bounce().
Bug URL: http://lkml.org/lkml/2013/3/7/56
Signed-off-by: shuge
---
mm/bounce.c |3 ++-
1 file
e(from->bv_page);
vto = page_address(to->bv_page) + to->bv_offset;
vfrom = kmap(from->bv_page) + from->bv_offset;
memcpy(vto, vfrom, to->bv_len);
Who can give some suggestions to me.
Thanks
Shuge
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