Cannot allocate memory

[WorldDrknss]

Working previous to 25.1.6 Update
Still present in `25.1.7`
Even running in emulation mode still fails with the same response.
The same results in IDS logs (as both utilize netmap)

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opening devname netmap:lagg0/R failed: Cannot allocate memory


[sy]

Hi,

Please run the command sysctl -a | grep "dev.netmap.buf_num". The value should be max 1000000.

[thistle]

Hi,

Please run the command sysctl -a | grep "dev.netmap.buf_num". The value should be max 1000000.

I'm having the same issue, whether IDS is turned on or off. 

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root@router:~ # sysctl -a | grep "dev.netmap.buf_num"
dev.netmap.buf_num: 1000000

I also tried doubling the value and packet engine still fails within a few seconds.  Hardware is Minisforum MS-01.  Zenarmor mode is L3 w/ native netmap driver.

[WorldDrknss]

Hi,

Please run the command sysctl -a | grep "dev.netmap.buf_num". The value should be max 1000000.

I have mine running much higher as I was having buffer issues. Again this all worked before the 25.1.6 update.

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dev.netmap.buf_num: 2097152
dev.netmap.ring_num: 256
dev.netmap.buf_size: 4096


[sy]

Hi,

Could you please provide the logs and configuration by following the steps outlined in the link below? I kindly request that you select all checkboxes. 
https://www.zenarmor.com/docs/support/reporting-bug
 
 
Best regards,

[dirtyfreebooter]

if you set

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dev.netmap.buf_num > 1000000 does that even work? i tried that and got a message like

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081.363854 [1363] netmap_config_obj_allocator requested objtotal 2000000 out of range [4, 1000000] which seem to set the actual buf_num to the default, not even 1000000...

i am using ixl driver on X710-DA2 with native netmap driver.

[sy]

Hi,

It must be max 1000000.

[WorldDrknss]

Sent

Hi,

Could you please provide the logs and configuration by following the steps outlined in the link below? I kindly request that you select all checkboxes.
https://www.zenarmor.com/docs/support/reporting-bug
 
 
Best regards,

[WorldDrknss]

I got this up and running again by setting the following in tunables

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dev.netmap.buf_num: 1000000
dev.netmap.admode: 0
dev.netmap.ring_num: 256
dev.netmap.buf_size: 4096

and then setting the MTU (instead of leaving blank) the interfaces to 1500.

Reboot Opnsense