#10375 closed defect (worksforme)
skbuff alloc of size 1926 failed
Reported by: | andrzejmleczko@… | Owned by: | developers |
---|---|---|---|
Priority: | normal | Milestone: | Barrier Breaker 14.07 |
Component: | base system | Version: | Trunk |
Keywords: | Cc: |
Description
After 4 days of uptime i got this kind of errors in dmesg:
size 1926 failed
skbuff alloc of size 1926 failed
skbuff alloc of size 1926 failed
alloc_pages_slowpath: 452 callbacks suppressed
swapper: page allocation failure. order:0, mode:0x4020
Call Trace:[<802537f4>] 0x802537f4
[<802537f4>] 0x802537f4
[<800adf34>] 0x800adf34
[<800d0018>] 0x800d0018
[<80076374>] 0x80076374
[<800d0b64>] 0x800d0b64
[<800d1944>] 0x800d1944
[<834a4080>] 0x834a4080
[<801cb76c>] 0x801cb76c
....
Logs are attached to ticket
using:
ATTITUDE ADJUSTMENT (bleeding edge, r28458) ----------
DIR-825B2
Attachments (3)
Change History (9)
Changed 6 years ago by Andrzej Mleczko <andrzejmleczko@…>
Changed 6 years ago by Andrzej Mleczko <andrzejmleczko@…>
Changed 6 years ago by Andrzej Mleczko <andrzejmleczko@…>
comment:1 Changed 6 years ago by Andrzej Mleczko <andrzejmleczko@…>
comment:2 Changed 6 years ago by jow
You are out of RAM. Limit the maximum allowed number of conntrack entries to 4096 and reduce the tcp idle timeout to 300 in sysctl.conf. No, swap does not help here.
comment:3 Changed 6 years ago by Andrzej Mleczko <andrzejmleczko@…>
I'll try this. Thx :)
comment:4 Changed 6 years ago by nbd
- Resolution set to worksforme
- Status changed from new to closed
comment:5 Changed 6 years ago by anonymous123
Just had the same issue on a TP-Link WR741ND on OpenWRT Backfire [r28263]. I did some iperf tests yesterday between one WR741ND, a WR1043ND, a Dlink DIR300, a Nokia N900 and a laptop (AR928X Wireless Network Adapter (PCI-Express) (rev 01)). This morning the laptop was still connected to the WR741ND, I could also ping its master interface just fine (usually < 5ms latency), the one I was connected to.
dmesg:
skbuff alloc of size 1926 failed [...] skbuff alloc of size 1926 failed skbuff alloc of size 1926 failed skbuff alloc of size 1926 failed skbuff alloc of size 1926 failed eth1: out of memory skbuff alloc of size 1926 failed ieee80211 phy0: failed to reallocate TX buffer ieee80211 phy0: failed to copy skb for wlan1
There still seems to be enough RAM left (at least this morning) on the according WR741ND:
# free total used free shared buffers Mem: 29372 15884 13488 0 1132 Swap: 0 0 0 Total: 29372 15884 13488
comment:6 Changed 4 years ago by jow
- Milestone changed from Attitude Adjustment 12.09 to Barrier Breaker 14.07
Milestone Attitude Adjustment 12.09 deleted
I forgot to mention that system is running on full ext-root