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Thu, 02 Jan 2025 16:46:02 -0800 (PST) Date: Thu, 02 Jan 2025 16:46:02 -0800 In-Reply-To: <6756b479.050a0220.a30f1.0196.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6777334a.050a0220.3a8527.0058.GAE@google.com> Subject: Re: [syzbot] [mm?] INFO: rcu detected stall in mas_preallocate (2) From: syzbot To: Liam.Howlett@oracle.com, akpm@linux-foundation.org, davem@davemloft.net, jannh@google.com, jhs@mojatatu.com, jiri@resnulli.us, liam.howlett@oracle.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, lorenzo.stoakes@oracle.com, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, vbabka@suse.cz, vinicius.gomes@intel.com, xiyou.wangcong@gmail.com Content-Type: text/plain; charset="UTF-8" X-Stat-Signature: a7tkcyczr9k1rbjec54zu11n87bbctg9 X-Rspamd-Queue-Id: 429081A0017 X-Rspam-User: X-Rspamd-Server: rspam01 X-HE-Tag: 1735865110-885657 X-HE-Meta: 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 q2cUvT+r 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 yIuoGZnG 44XPdvWPXEF7gkPIxCUoEtFfouij8EqMVLDami32U3LHtiU+5CBLZZwAdpPOxYd7ncWDl/+IPTHO/QXMLspPuI0tFHCqKofShI7rkFXoUVOTfeDEYtvcYYqcK+q/XgGQ86WoaxYqia36KSyORqCYjYNlDzHgIAXhxt2gZ2lv1/mR3+KT8Jw2+sbdG2EVrRzoStGH1xj4Hb3YzBmpbrL7wA== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: syzbot has bisected this issue to: commit 5a781ccbd19e4664babcbe4b4ead7aa2b9283d22 Author: Vinicius Costa Gomes Date: Sat Sep 29 00:59:43 2018 +0000 tc: Add support for configuring the taprio scheduler bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=117df818580000 start commit: feffde684ac2 Merge tag 'for-6.13-rc1-tag' of git://git.ker.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=137df818580000 console output: https://syzkaller.appspot.com/x/log.txt?x=157df818580000 kernel config: https://syzkaller.appspot.com/x/.config?x=50c7a61469ce77e7 dashboard link: https://syzkaller.appspot.com/bug?extid=882589c97d51a9de68eb syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10e8a8df980000 Reported-by: syzbot+882589c97d51a9de68eb@syzkaller.appspotmail.com Fixes: 5a781ccbd19e ("tc: Add support for configuring the taprio scheduler") For information about bisection process see: https://goo.gl/tpsmEJ#bisection