Re: [courier-users] courier breaks under linux kernel 4.9

[AndCycle <and...@an...>]

On 2017/02/08 21:53, Sam Varshavchik wrote:
> AndCycle writes:
>
>> Gentoo Linux dist.
>> Linux bacztwo 4.9.6-gentoo-r1 #2 SMP Wed Feb 8 04:09:10 CST 2017 x86_64
>> Intel(R) Xeon(R) CPU E3-1231 v3 @ 3.40GHz GenuineIntel GNU/Linux
>> mail-mta/courier-0.76.4
>>
>> I recently upgrade by linux kernel to 4.9.2, which result in courier
>> spit out following error message
>>
>> Feb  8 05:10:24 bacztwo courieresmtpd[8789]: started,ip=[190.173.150.46]
>> Feb  8 05:10:25 bacztwo courieresmtpd[18270]: gdbm fatal: couldn't init
>> cache
>> Feb  8 05:10:25 bacztwo courieresmtpd[8789]: submitclient: EOF from 
>> submit.
>> Feb  8 05:10:25 bacztwo courieresmtpd[8789]:
>> error,relay=190.173.150.46,msg="502 ESMTP command error",cmd: DATA
>>
>> as it complain gdbm fatal error, courier won't accept any smtp mail,
>> in the end I have to put an boot option "ignore_rlimit_data" to solve
>> this issue,
>>
>> is there other proper way to fix this issue?
>
> No issues with kernel 4.9.6 in Fedora.
>
> What is ULIMIT set to, in your esmtpd configuration file? The default 
> setting is 16384. Increase it.
>
it's at default.
ULIMIT=16384

I will try to increase the value and remove the boot option at next 
reboot to see if it helps,

thanks for you advice.