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Tue, 10 Sep 2024 23:37:48 +0200 Message-ID: <3fa8f466-7da9-4333-9af7-36dabc2a2047@gmx.com> Date: Wed, 11 Sep 2024 07:07:45 +0930 Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Critical error from Tree-checker From: Qu Wenruo To: Archange , linux-btrfs@vger.kernel.org References: <9541deea-9056-406e-be16-a996b549614d@archlinux.org> <244f1d2b-f412-4860-af34-65f630e7f231@gmx.com> Content-Language: en-US Autocrypt: addr=quwenruo.btrfs@gmx.com; keydata= xsBNBFnVga8BCACyhFP3ExcTIuB73jDIBA/vSoYcTyysFQzPvez64TUSCv1SgXEByR7fju3o 8RfaWuHCnkkea5luuTZMqfgTXrun2dqNVYDNOV6RIVrc4YuG20yhC1epnV55fJCThqij0MRL 1NxPKXIlEdHvN0Kov3CtWA+R1iNN0RCeVun7rmOrrjBK573aWC5sgP7YsBOLK79H3tmUtz6b 9Imuj0ZyEsa76Xg9PX9Hn2myKj1hfWGS+5og9Va4hrwQC8ipjXik6NKR5GDV+hOZkktU81G5 gkQtGB9jOAYRs86QG/b7PtIlbd3+pppT0gaS+wvwMs8cuNG+Pu6KO1oC4jgdseFLu7NpABEB AAHNIlF1IFdlbnJ1byA8cXV3ZW5ydW8uYnRyZnNAZ214LmNvbT7CwJQEEwEIAD4CGwMFCwkI BwIGFQgJCgsCBBYCAwECHgECF4AWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCY00iVQUJDToH pgAKCRDCPZHzoSX+qNKACACkjDLzCvcFuDlgqCiS4ajHAo6twGra3uGgY2klo3S4JespWifr BLPPak74oOShqNZ8yWzB1Bkz1u93Ifx3c3H0r2vLWrImoP5eQdymVqMWmDAq+sV1Koyt8gXQ XPD2jQCrfR9nUuV1F3Z4Lgo+6I5LjuXBVEayFdz/VYK63+YLEAlSowCF72Lkz06TmaI0XMyj jgRNGM2MRgfxbprCcsgUypaDfmhY2nrhIzPUICURfp9t/65+/PLlV4nYs+DtSwPyNjkPX72+ LdyIdY+BqS8cZbPG5spCyJIlZonADojLDYQq4QnufARU51zyVjzTXMg5gAttDZwTH+8LbNI4 mm2YzsBNBFnVga8BCACqU+th4Esy/c8BnvliFAjAfpzhI1wH76FD1MJPmAhA3DnX5JDORcga CbPEwhLj1xlwTgpeT+QfDmGJ5B5BlrrQFZVE1fChEjiJvyiSAO4yQPkrPVYTI7Xj34FnscPj /IrRUUka68MlHxPtFnAHr25VIuOS41lmYKYNwPNLRz9Ik6DmeTG3WJO2BQRNvXA0pXrJH1fN GSsRb+pKEKHKtL1803x71zQxCwLh+zLP1iXHVM5j8gX9zqupigQR/Cel2XPS44zWcDW8r7B0 q1eW4Jrv0x19p4P923voqn+joIAostyNTUjCeSrUdKth9jcdlam9X2DziA/DHDFfS5eq4fEv ABEBAAHCwHwEGAEIACYCGwwWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCY00ibgUJDToHvwAK CRDCPZHzoSX+qK6vB/9yyZlsS+ijtsvwYDjGA2WhVhN07Xa5SBBvGCAycyGGzSMkOJcOtUUf tD+ADyrLbLuVSfRN1ke738UojphwkSFj4t9scG5A+U8GgOZtrlYOsY2+cG3R5vjoXUgXMP37 INfWh0KbJodf0G48xouesn08cbfUdlphSMXujCA8y5TcNyRuNv2q5Nizl8sKhUZzh4BascoK DChBuznBsucCTAGrwPgG4/ul6HnWE8DipMKvkV9ob1xJS2W4WJRPp6QdVrBWJ9cCdtpR6GbL iQi22uZXoSPv/0oUrGU+U5X4IvdnvT+8viPzszL5wXswJZfqfy8tmHM85yjObVdIG6AlnrrD In-Reply-To: <244f1d2b-f412-4860-af34-65f630e7f231@gmx.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:r74gAeCtcfsMweL/OoS1FoGws0ykfgfR/zyrZyf4qcJvUcQyu9E wa5W9mr9HKqBaXiEu/i8079tHpGd44RDXDWG9U1YclOZ6HQK6URSWOC8HDhlu3yZDrmW1Lb Yain5Iqbd73yiLUZRGcIM+KWjrlbHSg5/HtMhYgbpHSMADcJl46Ckd2ept+GMeBUT5Alpkx TqUsK5FYwbpbL0RUXiR3g== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:LN1l7z0SSbI=;JXzpgjx0j30TeJlDcGHUJlVLgin AqmJ3mG094dvFtFDuAw7c5JI12D64i3eCKdsPF5ZE9aIlK8DPo59IWKOLcEhkmXTxwYi1DDqH sXPwpiW5wr9GIey+Jsy39gD4L3YwabhOsQZ0RzQt+kYN90F7w8KCyjAKoZ7CK91lCv6YdvbD3 q7gl5jLpCzmdgzSdIFxWQfXS5tt+0nsHWxPGOQKKecArMmrX0WfrZRymN8/gooSef+YlYGTHn TR7yvh33f+IrDUYX2ADimz2VSPoGF0U8M8GdtysJ/65UdBiX9gYlLLcgM+Mr+sAwapq6LugH1 fOC+k8htM/1K6NZdM5t62TMY7xcqWC1UE6vzQlBpGmkKW40wOyFiguq7+Von2FxSCVdFEa5Bw kl7ylHDco5kWetdWvoUb5LEk28cPpqgVnad3WQpjU28pAnqxaUGVVc+19pM6NrDvoXslu6/o8 laY2Q4QsZJZtra/zhfrM1HbsLlsTHsvgu3iTJ8t5OBme5NDK6kADXlbSiMSK4QNAcwFZTGd4t tprKKQFz92E6t+MI0MvPn5isv/fgyImWpFbpCBbTavvhufup5fi2RJCfbDiFzccOqogZkw/2k mKZApPXVnqxaZl1NH34Dgo0z6WB+o/krUDedOQ17NKhNNm13ir0hKs7TAeTPg9utOe1qeHpmU UPjB/8uXiLRsb1C2nlwlEqffdUGyNg13i9ztq8iprYuw1/RDgsgr6xWFqlWgFPhVOjdu/JxbY ICZOUfd18UOi8RZFrKLNO3ZBFT9+06O2WQsMwoYi2hN5gBRU0m7oJth+08aaGOWR9lGusPJA4 Z6eu6hw5PA9++XLqBvqghl5ZpahlGCSGGwUFFYa+72fNo= =E5=9C=A8 2024/9/11 06:58, Qu Wenruo =E5=86=99=E9=81=93: > > > =E5=9C=A8 2024/9/11 06:35, Archange =E5=86=99=E9=81=93: >> Hi there, >> >> Since today, my system started randomly becoming read-only. At that >> point I can still run dmesg in an open terminal, so I=E2=80=99ve seen i= t was >> related to a btrfs error, but did not try anything since I could not >> open a web browser anymore. But I=E2=80=99ve seen the error to be =E2= =80=9CBTRFS >> critical=E2=80=9D and related to a =E2=80=9Ccorrupt leaf=E2=80=9D. >> >> I=E2=80=99ve tried to run `btrfs scrub` on the device after rebooting, = and in >> fact it aborted almost right away triggering the same error in dmesg >> (but not turning the system read-only, so I can copy paste it here): >> >> [=C2=A0 365.268769] BTRFS info (device dm-0): scrub: started on devid 1 >> [=C2=A0 385.788000] page: refcount:3 mapcount:0 mapping:00000000d0054ca= e >> index:0x9678888 pfn:0x11ce15 >> [=C2=A0 385.788015] memcg:ffff9fc94db8f000 >> [=C2=A0 385.788021] aops:btree_aops [btrfs] ino:1 >> [=C2=A0 385.788235] flags: >> 0x2ffffa000004020(lru|private|node=3D0|zone=3D2|lastcpupid=3D0x1ffff) >> [=C2=A0 385.788248] raw: 02ffffa000004020 ffffea9a8574ff88 ffffea9a8473= 85c8 >> ffff9fc95b8365b0 >> [=C2=A0 385.788255] raw: 0000000009678888 ffff9fc9ae554000 00000003ffff= ffff >> ffff9fc94db8f000 >> [=C2=A0 385.788259] page dumped because: eb page dump >> [=C2=A0 385.788264] BTRFS critical (device dm-0): corrupt leaf: >> block=3D646267305984 slot=3D92 extent bytenr=3D1182031872 len=3D106496 = invalid >> data ref objectid value 257 > > Full dmesg please. > > Normally it should dump the full content of the tree block, to help > debugging the problem. Nevermind, the code doesn't dump the full leaf for debug anyway. In that case please dump that corrupted leaf by: # btrfs ins dump-tree -b 1182031872 /dev/dm-0 Thanks, Qu > > Thanks, > Qu >> [=C2=A0 385.788283] BTRFS error (device dm-0): read time tree block >> corruption detected on logical 646267305984 mirror 1 >> [=C2=A0 385.796803] BTRFS info (device dm-0): scrub: not finished on de= vid 1 >> with status: -5 >> >> According to https://btrfs.readthedocs.io/en/latest/Tree-checker.html >> this is not really expected, and the last paragraph says to report >> troubles here. So here I am, in the search for advice about this error >> (web searches returned nothing with this specific error except the >> commit/ml messages that added the code for it) and how to fix my random >> lockups. >> >> Regards. >> >> P.S.: I=E2=80=99m not subscribed to the list, so please keep me in copy= when >> answering. >> >> >