#18419: logd / high load and eats memory if >1 (kernel-)mssage/sec - r43102
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Reporter: bittorf@… | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone:
Component: packages | Version: Trunk
Keywords: |
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when producing more than 1 (kernel-)logmssage/sec, the router has
high load, eats memory, hangs or the watchdog triggers.
reproduce with:
{{{
root@box:~ iptables -I INPUT -j LOG
root@box:~ uptime
11:08:19 up 27 min, load average: 6.67, 5.16, 2.54
root@box:~ free
total used free shared buffers
Mem: 28996 19636 9360 0 1280
-/+ buffers: 18356 10640
Swap: 14332 2784 11548
}}}
it does not happen with older revisions, e.g. r37631 or r38651
if the router reboots, even
/sys/kernel/debug/crashlog is empty.
we use a circular buffer via
system.@system[0].log_size=16
interesting is, that userspace seems unaffected?
{{{
root@box:~ MSSAGE="$( seq 1 256 )"
root@box:~ while :;do logger "$MSSAGE"; done
(wait...everything is ok, even after some minutes)
}}}
PS:
please fix track, when using the word 'm e s s a g e', it is always
rejected as spam even when the catcha is solved - tried with firefox and
chrome.
--
Ticket URL: <https://dev.openwrt.org/ticket/18419>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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