linux-kernel - Re: [next-20250506][btrfs] Kernel OOPS while btrfs/001 TC

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Message-ID: <20250507170222.GJ9140@twin.jikos.cz>
Date: Wed, 7 May 2025 19:02:22 +0200
From: David Sterba <dsterba@...e.cz>
To: Venkat Rao Bagalkote <venkat88@...ux.ibm.com>
Cc: LKML <linux-kernel@...r.kernel.org>,
	linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
	linux-btrfs@...r.kernel.org, riteshh@...ux.ibm.com,
	Qu Wenruo <quwenruo.btrfs@....com>, disgoel@...ux.vnet.ibm.com
Subject: Re: [next-20250506][btrfs] Kernel OOPS while btrfs/001 TC

On Wed, May 07, 2025 at 02:14:34PM +0530, Venkat Rao Bagalkote wrote:
> Hello,
> 
> 
> I am observing kernel OOPS, while running btrfs/001 TC, from xfstests suite.
> 
> 
> This issue is introduced in next-20250506. This issue is not seen on 
> next-20250505 kernel.

Thanks for the report, the patch has been removed from linux-next.

> [  968.074163] NIP [c00800000f7fb5e0] btrfs_get_tree_subvol+0x32c/0x544 > [btrfs]
> [  968.074205] LR [c00800000f7fb3b4] btrfs_get_tree_subvol+0x100/0x544 > [btrfs]
> [  968.074241] Call Trace:
> [  968.074244] [c000000154747bc0] [c00800000f7fb3b4] > btrfs_get_tree_subvol+0x100/0x544 [btrfs] (unreliable)

This was the open coded fc_mount(), v3 is in the mailinglist,
https://lore.kernel.org/linux-btrfs/20250506195826.GU2023217@ZenIV/T/#u