Date: Fri, 25 Feb 2022 20:03:51 -0600 From: Larry Rosenman <ler@lerctr.org> To: Alexander Leidinger <Alexander@leidinger.net> Cc: Rob Wing <rob.fx907@gmail.com>, Alexander Motin <mav@freebsd.org>, Freebsd current <freebsd-current@freebsd.org> Subject: Re: ZFS PANIC: HELP. Message-ID: <d1db05269410cb5d8b0ba00b264d26e9@lerctr.org> In-Reply-To: <20220225091120.Horde.76VjoVNtr5BsqAw_5ftjpRZ@webmail.leidinger.net> References: <07c0c9c34b4a4133acab597c96867d27@lerctr.org> <95c7c326-e2f9-6e66-7b97-b9fb2671f4ad@FreeBSD.org> <1b6b2017ba69e6fda1ca237c3016ac61@lerctr.org> <a5f379a6-c2bd-f1e9-a281-bb657f3ccb75@FreeBSD.org> <6182c57bf1859482e72af78037c399e4@lerctr.org> <7abcbe88-446f-44b9-c3a7-0997d3430b57@FreeBSD.org> <2bc12c9ee3e6dd71b65079116ff2b845@lerctr.org> <5930f3d2b71c0932f903bb5b88a3c87d@lerctr.org> <e9b95fed-9a3c-623c-c046-f0a7fd609eb6@FreeBSD.org> <CAF3%2Bn_fYSHLxYGp0jUbFg8%2BPFkEJAp7QMCX2BWMk4ePrn0=1yA@mail.gmail.com> <a414d6f4ad21af3044444b22acbe42bd@lerctr.org> <CAF3%2Bn_cevarxBYMJ5%2BGeTex6C%2Be-A79TbpDL-Pd7jsWPKfu=SA@mail.gmail.com> <36d3896af19acc4fdd1712822ba9d420@lerctr.org> <9f6a8ad62fc0dbd6f3a19c7d695bd302@lerctr.org> <c2fb568ba91c61974cb439f6bda1aec3@lerctr.org> <20220225091120.Horde.76VjoVNtr5BsqAw_5ftjpRZ@webmail.leidinger.net>
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--=_c7968c98c9db15b5ca066756c67c3273 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; format=flowed On 02/25/2022 2:11 am, Alexander Leidinger wrote: > Quoting Larry Rosenman <ler@lerctr.org> (from Thu, 24 Feb 2022 20:19:45 > -0600): > >> I tried a scrub -- it panic'd on a fatal double fault. >> >> Suggestions? > > The safest / cleanest (but not fastest) is data export and pool > re-creation. If you export dataset by dataset (instead of recursively > all), you can even see which dataset is causing the issue. In case this > per dataset export narrows down the issue and it is a dataset you don't > care about (as in: 1) no issue to recreate from scratch or 2) there is > a backup available) you could delete this (or each such) dataset and > re-create it in-place (= not re-creating the entire pool). > > Bye, > Alexander. > > http://www.Leidinger.net Alexander@Leidinger.net: PGP > 0x8F31830F9F2772BF > http://www.FreeBSD.org netchild@FreeBSD.org : PGP > 0x8F31830F9F2772BF I'm running this script: #!/bin/sh for i in $(zfs list -H | awk '{print $1}') do FS=$1 FN=$(echo ${FS} | sed -e s@/@_@g) sudo zfs send -vecLep ${FS}@REPAIR_SNAP | ssh ler@freenas.lerctr.org cat - \> $FN done How will I know a "Problem" dataset? -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 214-642-9640 E-Mail: ler@lerctr.org US Mail: 5708 Sabbia Dr, Round Rock, TX 78665-2106 --=_c7968c98c9db15b5ca066756c67c3273 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=UTF-8 <html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; charset= =3DUTF-8" /></head><body style=3D'font-size: 10pt; font-family: Arial,Helve= tica,sans-serif'> <p id=3D"reply-intro">On 02/25/2022 2:11 am, Alexander Leidinger wrote:</p> <blockquote type=3D"cite" style=3D"padding: 0 0.4em; border-left: #1010ff 2= px solid; margin: 0"> <div id=3D"replybody1"> <div style=3D"font-family: Arial; font-size: 14px;"> <p>Quoting Larry Rosenman <<a href=3D"mailto:ler@lerctr.org" rel=3D"nore= ferrer">ler@lerctr.org</a>> (from Thu, 24 Feb 2022 20:19:45 -0600):</p> <blockquote style=3D"border-left: 2px solid blue; margin-left: 2px; padding= -left: 12px;"> <p>I tried a scrub -- it panic'd on a fatal double fault. </p> <p>Suggestions?</p> </blockquote> <p>The safest / cleanest (but not fastest) is data export and pool re-creat= ion. If you export dataset by dataset (instead of recursively all), you can= even see which dataset is causing the issue. In case this per dataset expo= rt narrows down the issue and it is a dataset you don't care about (as in: = 1) no issue to recreate from scratch or 2) there is a backup available) you= could delete this (or each such) dataset and re-create it in-place (=3D no= t re-creating the entire pool).<br /><br />Bye,<br />Alexander.</p> <div><a href=3D"http://www.Leidinger.net" target=3D"_blank" rel=3D"noopener= noreferrer">http://www.Leidinger.net</a>; <a href=3D"mailto:Alexander@Leidi= nger.net" rel=3D"noreferrer">Alexander@Leidinger.net</a>: PGP 0x8F31830F9F2= 772BF<br /><a href=3D"http://www.FreeBSD.org" target=3D"_blank" rel=3D"noop= ener noreferrer">http://www.FreeBSD.org</a> <a href=3D"mailto:= netchild@FreeBSD.org" rel=3D"noreferrer">netchild@FreeBSD.org</a> : P= GP 0x8F31830F9F2772BF</div> </div> </div> </blockquote> <p>I'm running this script:<br />#!/bin/sh<br />for i in $(zfs list -H | aw= k '{print $1}')<br />do<br /> FS=3D$1<br /> FN=3D$(echo ${FS} |= sed -e s@/@_@g)<br /> sudo zfs send -vecLep ${FS}@REPAIR_SNAP | ssh = ler@freenas.lerctr.org cat - \> $FN<br />done</p> <p><br /></p> <p>How will I know a "Problem" dataset?</p> <p><br /></p> <div id=3D"signature"> <div class=3D"pre" style=3D"margin: 0; padding: 0; font-family: monospace">= <span class=3D"sig">-- <br />Larry Rosenman &n= bsp;  = ; <a href=3D"http://www.lerctr.org/~ler" target=3D"_blank"= rel=3D"noopener noreferrer">http://www.lerctr.org/~ler</a><br />Phone: +1 = 214-642-9640 &n= bsp; E-Mail: <a href=3D"mailto:ler@lerctr.org"= >ler@lerctr.org</a><br />US Mail: 5708 Sabbia Dr, Round Rock, TX 78665-2106= <br /></span></div> </div> </body></html> --=_c7968c98c9db15b5ca066756c67c3273--
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