Print Page - Cannot allocate memory

Title: Cannot allocate memory
Post by: WorldDrknss on May 19, 2025, 10:55:47 PM

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

Title: Re: Cannot allocate memory
Post by: sy on May 20, 2025, 07:21:53 AM

Hi,

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

Title: Re: Cannot allocate memory
Post by: thistle on May 20, 2025, 04:57:56 PM

Quote from: sy on May 20, 2025, 07:21:53 AMHi,

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.

Title: Re: Cannot allocate memory
Post by: WorldDrknss on May 20, 2025, 06:07:38 PM

Quote from: sy on May 20, 2025, 07:21:53 AMHi,

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

Title: Re: Cannot allocate memory
Post by: sy on May 23, 2025, 12:56:32 PM

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,

Title: Re: Cannot allocate memory
Post by: dirtyfreebooter on May 27, 2025, 08:35:53 PM

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.

Title: Re: Cannot allocate memory
Post by: sy on May 28, 2025, 06:22:11 PM

Hi,

It must be max 1000000.

Title: Re: Cannot allocate memory
Post by: WorldDrknss on May 29, 2025, 12:47:12 AM

Sent

Quote from: sy on May 23, 2025, 12:56:32 PMHi,

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,

Title: Re: Cannot allocate memory
Post by: WorldDrknss on May 31, 2025, 04:01:44 AM

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

OPNsense Forum

English Forums => Zenarmor (Sensei) => Topic started by: WorldDrknss on May 19, 2025, 10:55:47 PM