From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 0242C8834; Wed, 24 Jun 2026 22:34:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782340448; cv=none; b=uSycMPV38YLsTDRxd5ysISHuV2YDCK8fDeMrA4nZ8j1NUqPOFPgSFQhNLXrfPnJ71sF8TSpujg6LmVRwTa3zSairDLXLVyr5zcbmeFQQiCwMS+o8pKPraV0siB94QoO0NfvaoCNHldJYHoGru02eiIWNuurx4o7SlOWl8Xkdk+Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782340448; c=relaxed/simple; bh=jii3cJiVzwMrZB4rB2WKhpoWQtBuM+AjGlyEzg1nA6M=; h=Date:Message-ID:From:To:Cc:Subject:In-Reply-To:References; b=dvqjtMoNtvXV4LGWQxYSlc7lc32CWlM8W6qQ2z+YTWZO1eObstyYDHTvQItJLZdE9ir4QE9NtziVkRnOgxiY2RL/GWDs19Hpw5OGw4Lbe8mdduLRUxQOSEC0beAJ1LtGpsJDX30FpxdOPKxE0B7jDRww7PgNsPfBD4Ab0DTuumI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KGR132xp; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="KGR132xp" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6B2C01F000E9; Wed, 24 Jun 2026 22:34:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1782340447; bh=jii3cJiVzwMrZB4rB2WKhpoWQtBuM+AjGlyEzg1nA6M=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=KGR132xp4zKrvrBYJBccPaNSdBiSD0Bs6OC0/6nmN8DFF5KhKV62NFad/GK3gwRa4 Q/jURN8ktJGPK2feIYHxp5IlKZgx+cj2o85I99MxnECh1M7Slw3cYMl5r6l/9sityk 3r/cM8cSkQnrMeHQ9NvNisLq2WL/SnDBGH4Gh1yhHoTVmPF8EeVpYL0Rpy+jMYL5te GZsp3yMsaVu4dQOfewsFNFw54830FLoHSQ5N/tK6UzhQm1oqTJkjLQNtg0CL0VwL6Y PphDxGJdsGfUbvuE1i6oJDUC5TIXb0mTdIhYAHT3+nJCRACK7Q7UzgwXocNmZPB1qu FLaSelRUQuEkA== Date: Wed, 24 Jun 2026 12:34:06 -1000 Message-ID: From: Tejun Heo To: syzbot+bb2e19a1190a556c01b1@syzkaller.appspotmail.com Cc: cgroups@vger.kernel.org, hannes@cmpxchg.org, linux-kernel@vger.kernel.org, mkoutny@suse.com, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [cgroups?] INFO: task hung in cgroup_subtree_control_write (2) In-Reply-To: <6a2fb248.8812e0fc.3c3fa4.001a.GAE@google.com> References: <6a23a4b4.e4db5ad2.3b7dfb.0000.GAE@google.com> <6a2fb248.8812e0fc.3c3fa4.001a.GAE@google.com> Precedence: bulk X-Mailing-List: cgroups@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: I tried to reproduce this locally with the syz reproducer on a matching PREEMPT_RT + KASAN build and could not trigger it, including looping the minimized reproducer with the matched controller set and high concurrency over many VM-hours. Thanks. -- tejun