Re: [PATCH] qed: fix possible unpaired spin_{un}lock_bh in _qed_mcp_cmd_and_union()

From: patchwork-bot+netdevbpf
Date: Thu Jul 15 2021 - 15:54:12 EST


Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Thu, 15 Jul 2021 16:08:21 +0800 you wrote:
> Liajian reported a bug_on hit on a ThunderX2 arm64 server with FastLinQ
> QL41000 ethernet controller:
> BUG: scheduling while atomic: kworker/0:4/531/0x00000200
> [qed_probe:488()]hw prepare failed
> kernel BUG at mm/vmalloc.c:2355!
> Internal error: Oops - BUG: 0 [#1] SMP
> CPU: 0 PID: 531 Comm: kworker/0:4 Tainted: G W 5.4.0-77-generic #86-Ubuntu
> pstate: 00400009 (nzcv daif +PAN -UAO)
> Call trace:
> vunmap+0x4c/0x50
> iounmap+0x48/0x58
> qed_free_pci+0x60/0x80 [qed]
> qed_probe+0x35c/0x688 [qed]
> __qede_probe+0x88/0x5c8 [qede]
> qede_probe+0x60/0xe0 [qede]
> local_pci_probe+0x48/0xa0
> work_for_cpu_fn+0x24/0x38
> process_one_work+0x1d0/0x468
> worker_thread+0x238/0x4e0
> kthread+0xf0/0x118
> ret_from_fork+0x10/0x18
>
> [...]

Here is the summary with links:
- qed: fix possible unpaired spin_{un}lock_bh in _qed_mcp_cmd_and_union()
https://git.kernel.org/netdev/net/c/6206b7981a36

You are awesome, thank you!
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