Re: [net PATCH v2] octeontx2-pf: Avoid use of GFP_KERNEL in atomic context

From: patchwork-bot+netdevbpf
Date: Mon Jan 16 2023 - 09:27:42 EST


Hello:

This patch was applied to netdev/net.git (master)
by David S. Miller <davem@xxxxxxxxxxxxx>:

On Fri, 13 Jan 2023 11:49:02 +0530 you wrote:
> Using GFP_KERNEL in preemption disable context, causing below warning
> when CONFIG_DEBUG_ATOMIC_SLEEP is enabled.
>
> [ 32.542271] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274
> [ 32.550883] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 1, name: swapper/0
> [ 32.558707] preempt_count: 1, expected: 0
> [ 32.562710] RCU nest depth: 0, expected: 0
> [ 32.566800] CPU: 3 PID: 1 Comm: swapper/0 Tainted: G W 6.2.0-rc2-00269-gae9dcb91c606 #7
> [ 32.576188] Hardware name: Marvell CN106XX board (DT)
> [ 32.581232] Call trace:
> [ 32.583670] dump_backtrace.part.0+0xe0/0xf0
> [ 32.587937] show_stack+0x18/0x30
> [ 32.591245] dump_stack_lvl+0x68/0x84
> [ 32.594900] dump_stack+0x18/0x34
> [ 32.598206] __might_resched+0x12c/0x160
> [ 32.602122] __might_sleep+0x48/0xa0
> [ 32.605689] __kmem_cache_alloc_node+0x2b8/0x2e0
> [ 32.610301] __kmalloc+0x58/0x190
> [ 32.613610] otx2_sq_aura_pool_init+0x1a8/0x314
> [ 32.618134] otx2_open+0x1d4/0x9d0
>
> [...]

Here is the summary with links:
- [net,v2] octeontx2-pf: Avoid use of GFP_KERNEL in atomic context
https://git.kernel.org/netdev/net/c/87b93b678e95

You are awesome, thank you!
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