Re: [sparc64] lockdep: Fix lockdep recursion - call trace

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On Thu, Oct 22, 2020 at 12:21:55PM +0300, Anatoly Pugachev wrote:
> Hello!
> 
> Bisected the following linux calltrace after v5.9 :
> 
> [    8.650198] systemd[1]: Started Journal Service.
> [    9.028125] ------------[ cut here ]------------
> [    9.028171] WARNING: CPU: 11 PID: 499 at
> net/netfilter/nf_tables_api.c:622 nft_chain_parse_hook+0x7c/0x360
> [nf_tables]
> [    9.028185] Modules linked in: nf_tables nfnetlink sunrpc ip_tables
> x_tables ipv6 crc_ccitt autofs4 ext4 crc16 mbcache jbd2 raid10 raid456
> async_raid6_recov async_mem
> cpy async_pq async_xor xor async_tx raid6_pq raid1 raid0 multipath
> linear md_mod crc32c_sparc64
> [    9.028243] CPU: 11 PID: 499 Comm: nft Tainted: G        W
> 5.9.0-rc8-00209-gbaffd723e44d #111
> [    9.028255] Call Trace:
> [    9.028269] [<00000000004727e8>] __warn+0xa8/0x120
> [    9.028278] [<0000000000472c20>] warn_slowpath_fmt+0x34/0x74
> [    9.028291] [<00000000100c19fc>] nft_chain_parse_hook+0x7c/0x360 [nf_tables]

> commit 4d004099a668c41522242aa146a38cc4eb59cb1e

What's unexpected.. while I just queued a another fix for that commit:

  https://lkml.kernel.org/r/20201022103028.GC2611@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

I don't think that explains this WARN. Let me go prod at it.



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