Re: running out of tags in 9P (was Re: [git pull] vfs part 2)

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On 07/02/2015 07:49 PM, Al Viro wrote:
> On Thu, Jul 02, 2015 at 05:43:32PM +0100, Al Viro wrote:
>>  	req->tc->tag = tag-1;
>> +	if (req->status != REQ_STATUS_IDLE)
>> +		pr_err("using tag %d with odd status (%d)", tag, req->status);
> 
> Should be tag - 1 here, actually.

So, with this change:

[   81.654695] 9pnet: late delivery, tag 2 already freed
[   81.655186] 9pnet: mismatched reply [tag = 2]
[   85.014795] 9pnet: late delivery, tag 4 already freed
[   85.015753] 9pnet: late delivery, tag 4 already freed
[   85.016473] 9pnet: late delivery, tag 4 already freed
[   87.275842] 9pnet: mismatched reply [tag = 5]
[   88.943223] 9pnet: late delivery, tag 4 already freed
[   88.943790] 9pnet: late delivery, tag 4 already freed
[   88.944320] 9pnet: late delivery, tag 4 already freed
[   88.945050] 9pnet: mismatched reply [tag = 4]
[  105.551220] 9pnet: late delivery, tag 3 already freed
[  105.552065] 9pnet: late delivery, tag 3 already freed
[  114.528467] 9pnet: late delivery, tag 4 already freed
[  164.791295] 9pnet: late delivery, tag 2 already freed
[  164.792156] 9pnet: using tag 2 with odd status (4)
[  164.864398] 9pnet: mismatched reply [tag = 4]
[  166.419993] 9pnet: mismatched reply [tag = 3]
[  174.062625] 9pnet: late delivery, tag 3 already freed
[  174.063121] 9pnet: late delivery, tag 3 already freed
[  174.063637] 9pnet: late delivery, tag 3 already freed
[  174.064018] 9pnet: late delivery, tag 3 already freed
[  174.064547] 9pnet: mismatched reply [tag = 3]
[  175.418729] 9pnet: late delivery, tag 3 already freed
[  177.911727] 9pnet: mismatched reply [tag = 1]
[  235.748520] 9pnet: late delivery, tag 1 already freed
[  235.749595] 9pnet: using tag 1 with odd status (4)
[  243.496782] 9pnet: late delivery, tag 6 already freed
[  243.497697] 9pnet: late delivery, tag 6 already freed
[  243.499079] 9pnet: mismatched reply [tag = 6]
[  243.736388] 9pnet: late delivery, tag 1 already freed
[  243.740019] 9pnet: late delivery, tag 1 already freed
[  248.337712] 9pnet: late delivery, tag 2 already freed
[  249.872950] 9pnet: mismatched reply [tag = 9]
[  252.448858] 9pnet: mismatched reply [tag = 8]
[  252.668878] 9pnet: mismatched reply [tag = 11]
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