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Sat, 02 Mar 2019 02:05:59 +0100 Subject: Re: [bug] btrfs check clear-space-cache v1 corrupted file system To: Chris Murphy , Btrfs BTRFS References: From: Qu Wenruo Openpgp: preference=signencrypt Autocrypt: addr=quwenruo.btrfs@gmx.com; prefer-encrypt=mutual; keydata= mQENBFnVga8BCACyhFP3ExcTIuB73jDIBA/vSoYcTyysFQzPvez64TUSCv1SgXEByR7fju3o 8RfaWuHCnkkea5luuTZMqfgTXrun2dqNVYDNOV6RIVrc4YuG20yhC1epnV55fJCThqij0MRL 1NxPKXIlEdHvN0Kov3CtWA+R1iNN0RCeVun7rmOrrjBK573aWC5sgP7YsBOLK79H3tmUtz6b 9Imuj0ZyEsa76Xg9PX9Hn2myKj1hfWGS+5og9Va4hrwQC8ipjXik6NKR5GDV+hOZkktU81G5 gkQtGB9jOAYRs86QG/b7PtIlbd3+pppT0gaS+wvwMs8cuNG+Pu6KO1oC4jgdseFLu7NpABEB AAG0IlF1IFdlbnJ1byA8cXV3ZW5ydW8uYnRyZnNAZ214LmNvbT6JAVQEEwEIAD4CGwMFCwkI BwIGFQgJCgsCBBYCAwECHgECF4AWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCWdWCnQUJCWYC bgAKCRDCPZHzoSX+qAR8B/94VAsSNygx1C6dhb1u1Wp1Jr/lfO7QIOK/nf1PF0VpYjTQ2au8 ihf/RApTna31sVjBx3jzlmpy+lDoPdXwbI3Czx1PwDbdhAAjdRbvBmwM6cUWyqD+zjVm4RTG rFTPi3E7828YJ71Vpda2qghOYdnC45xCcjmHh8FwReLzsV2A6FtXsvd87bq6Iw2axOHVUax2 FGSbardMsHrya1dC2jF2R6n0uxaIc1bWGweYsq0LXvLcvjWH+zDgzYCUB0cfb+6Ib/ipSCYp 3i8BevMsTs62MOBmKz7til6Zdz0kkqDdSNOq8LgWGLOwUTqBh71+lqN2XBpTDu1eLZaNbxSI ilaVuQENBFnVga8BCACqU+th4Esy/c8BnvliFAjAfpzhI1wH76FD1MJPmAhA3DnX5JDORcga CbPEwhLj1xlwTgpeT+QfDmGJ5B5BlrrQFZVE1fChEjiJvyiSAO4yQPkrPVYTI7Xj34FnscPj /IrRUUka68MlHxPtFnAHr25VIuOS41lmYKYNwPNLRz9Ik6DmeTG3WJO2BQRNvXA0pXrJH1fN GSsRb+pKEKHKtL1803x71zQxCwLh+zLP1iXHVM5j8gX9zqupigQR/Cel2XPS44zWcDW8r7B0 q1eW4Jrv0x19p4P923voqn+joIAostyNTUjCeSrUdKth9jcdlam9X2DziA/DHDFfS5eq4fEv ABEBAAGJATwEGAEIACYWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCWdWBrwIbDAUJA8JnAAAK CRDCPZHzoSX+qA3xB/4zS8zYh3Cbm3FllKz7+RKBw/ETBibFSKedQkbJzRlZhBc+XRwF61mi f0SXSdqKMbM1a98fEg8H5kV6GTo62BzvynVrf/FyT+zWbIVEuuZttMk2gWLIvbmWNyrQnzPl mnjK4AEvZGIt1pk+3+N/CMEfAZH5Aqnp0PaoytRZ/1vtMXNgMxlfNnb96giC3KMR6U0E+siA 4V7biIoyNoaN33t8m5FwEwd2FQDG9dAXWhG13zcm9gnk63BN3wyCQR+X5+jsfBaS4dvNzvQv h8Uq/YGjCoV1ofKYh3WKMY8avjq25nlrhzD/Nto9jHp8niwr21K//pXVA81R2qaXqGbql+zo Message-ID: <4dfdc5a4-a6d7-e96b-afa1-a9c71b123a96@gmx.com> Date: Sat, 2 Mar 2019 09:05:54 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.5.1 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="HUz4QXihNTmascuQAGbpdbxWGp3Y5ilbm" X-Provags-ID: V03:K1:tXwYcnVZCWNAtIvzPhF1w37J4DVcFDci1uAV5T6NoLGB1K/lwZt 34NJLzHfo0iofjABgsym20hglH7aJq3h5mi6wSLmcbV2u+lcQAp22CxnkIrozdB3HmGpLAS CkCKw+sO0CW/fOLqSImK7vTZcUlMvOKnV2abFXwoUH2UIJx1SpuDULZ0LNF65pYp4+j0AW2 YzRhedGnMXzRHo7LHvOkA== X-UI-Out-Filterresults: notjunk:1;V03:K0:CItORgYMzCo=:PGePlldcQAWVoMBjxA23TU WSV7n1ePLxYCqe9VK7b/JCBPBN1LS6oqsCDxTP72QkKuQHbXJMGIyeyIluCmwhpuFHTcdRrFn CqYQ3ihR0OhL+Xv6qFc0fhfP8ogr7j8ZgH7m/jLsu7K1FYum14Do9sL55wAxw2f1blCAc7GYT Hn4MNY3GKqnSJpatULPVQCjo4aCu8QBEuH9jJCFaoXVG9AeVWwatOSCnDobmoqi0MdP5GOGI9 KU8EIg9tF/XoJd+XzJlpiBRpOJ0ceKkvfFISTfooiGGtnmXG7mH91LWoCwRXLNho5/ngaMSLx 04jb9QSgzFGh9rG4fYbtwYsgJVd7aAX+lCImC36Nk9QqH1FYIE7gaGcT15bzrSgWcbjuStRjG KFjgFZercCs/187bT300DchOiqPWa7i8heXPuZgw2hLx0+oUhqR+G6btkE2zApBggjwuxVuUK wDq5Qod4nC5H6QqlBZgIXfAUN9pswf8Ai45RI/BVKNzfumFiOsE7jcm8fsAasSm6xNFDyw4O4 oGu1vx9jQVIhZHHDAE5AENBuhlmb+0XlYP1DVe9SaGT8/HbcomoYdx/EnBrSNMDcE6zintokK IGvar2jEHrdCRSKaRoqU/U8NMNDVGlkMdMaMyD/h66zVvlIGVQ1eDxUA4bIXfecoad0jC8RvP FekUJhftRGnj3Q4O6qEv4hs9bM3yKp+rRP9wLnZNWjmSUYxVxaEZRlUmxfb5fS5789zZGEOV6 TIqKUX6gMug+NJhrivfm4YMFH/e9QN/xTI+/oqL9mjxeDBNIEsMZxNDjc6X1qRh0AGpCLRCOt BufO/TA9hUrNpbhsLVi28J4kHeaSgQqd2lax5IFX1CRuSePRUYgKV1jdIHUeY/lOU0D9RjVE/ 30M+FgVhj3giirKOM794BE0nr0zczb4dckoXUfBgoyRNGGyh8WePEQ+BsW3rCO Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --HUz4QXihNTmascuQAGbpdbxWGp3Y5ilbm Content-Type: multipart/mixed; boundary="7q9h6V50b7ydsmbXIVqjprKXgfoh3hI1Y"; protected-headers="v1" From: Qu Wenruo To: Chris Murphy , Btrfs BTRFS Message-ID: <4dfdc5a4-a6d7-e96b-afa1-a9c71b123a96@gmx.com> Subject: Re: [bug] btrfs check clear-space-cache v1 corrupted file system References: In-Reply-To: --7q9h6V50b7ydsmbXIVqjprKXgfoh3hI1Y Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 2019/3/2 =E4=B8=8A=E5=8D=888:20, Chris Murphy wrote: > Problem happens with btrfsprogs 4.19.1 >=20 > https://bugzilla.kernel.org/show_bug.cgi?id=3D202717 >=20 > That bug report includes the trace in user space; but I've also > processed the resulting coredump file with gdb and attached that to > the bug report. >=20 > Before using --clear-space-cache v1, btrfs scrub and btrfs check came > up clean no errors. Following the crash, I compiled brfsprogs 4.20.2 > and ran 'btrfs check' which finds corruption. >=20 > I've taken no further action, and the btrfs check output gives me no > useful plain language information what the next steps are. So I'm just > gonna leave it alone since it's a backup volume anyway. Is the backup volume binary dump of the original fs? I'm interesting why clear space cache v1 doesn't work, to find out that, we need tree dump of the original fs. And is the original check done by latest btrfs-progs or v4.19.1? Thanks, Qu --7q9h6V50b7ydsmbXIVqjprKXgfoh3hI1Y-- --HUz4QXihNTmascuQAGbpdbxWGp3Y5ilbm Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEELd9y5aWlW6idqkLhwj2R86El/qgFAlx51vIACgkQwj2R86El /qihjQf+LLj6P91VUUyQ9d20VOT8EAVr/HhE0or6YZBM+1L7jlSASIX5Oeo9qfKZ 0X+0LRXTdfun1lxSuXAPc5SSF02J+zfxyO9vZXS31Yv+TLQvueYCvWrWUDZ/KG3X 11ojmQq1nNACkMt4Nczja+/+50oqdRS+NgGfDGCp90CTTEGXfRguQoPfzqSPi5qI RAVSMK6CcllS16xsie6x3wrLX+tw9aGlP3meB0a475Y+0iUl7qgCwkRwPBK+YjVp 2ZGpHJp5shZjbUZbFU7HIwbITs50iWeh6sh18WxZfq90wtq2lIa1c4YOdxH20xHj SMN6QjW6wViZZKIsKDFjoCy/Fc5tWg== =4npl -----END PGP SIGNATURE----- --HUz4QXihNTmascuQAGbpdbxWGp3Y5ilbm--