On 2018/10/4 下午10:07, Eddie Chapman wrote:
> On 28/09/18 03:32, Coly Li wrote:
>>
>> On 9/27/18 11:53 PM, Eddie Chapman wrote:
>>> On 27/09/18 16:23, Coly Li wrote:
On 9/27/18 9:45 PM, guoju wrote:
> After write SSD completed, bcache schedule journal_write work to
> system_wq, tha
On 28/09/18 03:32, Coly Li wrote:
On 9/27/18 11:53 PM, Eddie Chapman wrote:
On 27/09/18 16:23, Coly Li wrote:
On 9/27/18 9:45 PM, guoju wrote:
After write SSD completed, bcache schedule journal_write work to
system_wq, that is a public workqueue in system, without WQ_MEM_RECLAIM
flag. s
On 9/27/18 11:53 PM, Eddie Chapman wrote:
On 27/09/18 16:23, Coly Li wrote:
On 9/27/18 9:45 PM, guoju wrote:
After write SSD completed, bcache schedule journal_write work to
system_wq, that is a public workqueue in system, without WQ_MEM_RECLAIM
flag. system_wq is also a bound wq, and there
Hi Stefan,
This bug was triggered by following condition:
1, few system memory available to allocate
2, journal delayed its operations to system_wq, which needs to allocate
memory to execute.
3, Due to lack of memory, kernel starts to reclaim system memory, and
trigger writeback to file sys
Hi Coly,
is this the deadlock I reported some weeks ago?
Greets,
Stefan
Excuse my typo sent from my mobile phone.
Am 27.09.2018 um 17:53 schrieb Eddie Chapman mailto:ed...@ehuk.net>>:
> On 27/09/18 16:23, Coly Li wrote:
>> On 9/27/18 9:45 PM, guoju wrote:
>>> After write SSD completed, bcache
On 27/09/18 16:23, Coly Li wrote:
On 9/27/18 9:45 PM, guoju wrote:
After write SSD completed, bcache schedule journal_write work to
system_wq, that is a public workqueue in system, without WQ_MEM_RECLAIM
flag. system_wq is also a bound wq, and there may be no idle kworker on
current processor.
On 9/27/18 9:45 PM, guoju wrote:
After write SSD completed, bcache schedule journal_write work to
system_wq, that is a public workqueue in system, without WQ_MEM_RECLAIM
flag. system_wq is also a bound wq, and there may be no idle kworker on
current processor. Creating a new kworker may unfortu
After write SSD completed, bcache schedule journal_write work to
system_wq, that is a public workqueue in system, without WQ_MEM_RECLAIM
flag. system_wq is also a bound wq, and there may be no idle kworker on
current processor. Creating a new kworker may unfortunately need to
reclaim memory first,
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