# Pynq Allocate failed :RuntimeError: Allocate failed: 4294967295

**URL:** https://discuss.pynq.io/t/pynq-allocate-failed-allocate-failed-4294967295/7593
**Category:** Support
**Created:** [October 12, 2024, 7:47pm UTC](https://discuss.pynq.io/t/pynq-allocate-failed-allocate-failed-4294967295/7593 "2024-10-12T19:47:06Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![ayush\_dixit](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/ayush_dixit/32/6381_2.png) [@ayush\_dixit](https://discuss.pynq.io/u/ayush_dixit)
#### Post date: [October 12, 2024, 7:47pm UTC](https://discuss.pynq.io/t/pynq-allocate-failed-allocate-failed-4294967295/7593/1 "2024-10-12T19:47:06Z")

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- PYNQ version = 3.0.1 & Board name = Pynq Z2 & Tool Version
- While allocating input buffer i am getting runtime error

 ![pynqZ2](https://us1.discourse-cdn.com/flex019/uploads/pynq1/original/2X/9/92313b55bc580149c6e7ab73199d7149aee12059.png)

- Error message:  
RuntimeError: Allocate failed: 4294967295

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### Author: ![matthew](https://avatars.discourse-cdn.com/v4/letter/m/ed655f/32.png) [@matthew](https://discuss.pynq.io/u/matthew)
#### Post date: [October 12, 2024, 8:35pm UTC](https://discuss.pynq.io/t/pynq-allocate-failed-allocate-failed-4294967295/7593/2 "2024-10-12T20:35:19Z")

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Hi,  
Could it be linked to **allocate** max size, detailed in this previous request ( [PYNQ Allocate() Max. Size?](https://discuss.pynq.io/t/pynq-allocate-max-size/7378)) ?