From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EDFB117C9FA; Wed, 16 Oct 2024 07:14:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729062872; cv=none; b=dZ4FjuFyQkh3KAgl4FpfG/0tajT/88ueugnwkDmzQRoVQEQveq0DhY+bWLk4zIdHOeQRhzr3KGlNlVlHP79+GdKX/PsMTvqzDu2v9XxkFIwb5j6FwdNuUmFQqZEOp3rnCD89UGqKg6S99ge2Opa+t8AE4UftzN0ink+3/Y2YUJI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729062872; c=relaxed/simple; bh=Q3kHXLQbSrondJ+e0RuvEzqQ7FhbPieKfYcghLcIaCo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=uTuVEwswqITng4qUHrWX2r9Yz7ATdvUWQjxRKLTx5hT8s+GX6YfQ24ALpa+J8xaNlzUA84HBqMy6cOX1ow4E4CNbYQ1f33JjYe4iRlNIjTi+cXtHU6EMP6s3inRgeH0CwoC1UqKjvTjLP1Ga1rltEbXYdHpJnamaYGjFtMrFV+A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Fkn+hu38; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="Fkn+hu38" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 130ACC4CEC5; Wed, 16 Oct 2024 07:14:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1729062870; bh=Q3kHXLQbSrondJ+e0RuvEzqQ7FhbPieKfYcghLcIaCo=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Fkn+hu38z7AP8NlYdvO8HyOhHOiyzDgVchxtkIsLL+158xNsQ0+t1g/fzt+121x2A vi1TEBsEEfVpLJrihR3Tu04P+/oKK/akV1RcJpcoXwQ9+EHiTaQXJtgvRjqLJZsHCJ gRa3w/06F7B1h2GxsG7xPmOENsXINTvn+c8oSOQs= Date: Wed, 16 Oct 2024 09:14:27 +0200 From: Greg Kroah-Hartman To: Lorenzo Stoakes Cc: syzbot , akpm@linux-foundation.org, liam.howlett@oracle.com, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-usb@vger.kernel.org, syzkaller-bugs@googlegroups.com, vbabka@suse.cz, Marcello Sylvester Bauer , Jiri Kosina , Benjamin Tissoires Subject: Re: [syzbot] [input?] [usb?] [mm?] INFO: rcu detected stall in vma_link_file Message-ID: <2024101602-skintight-crawfish-ebab@gregkh> References: <670ed017.050a0220.d9b66.0156.GAE@google.com> Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Wed, Oct 16, 2024 at 08:06:20AM +0100, Lorenzo Stoakes wrote: > + some people from USB/HID subsystem. > > This is really not looking mm-related, as for a second time we've asked > syzbot to re-run and for a second time it's not hit any mm-specific code - > I think this is misattributed - could somebody from the USB/HID side take a > look? > > It looks to be something that isn't reproduced by a specific C program but > by a syzkaller USB configuration [0]? There's a lot of odd usb syzbot issues right now dealing with the dummy hcd controller, so maybe this is another one of them... thanks, greg k-h