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<p>I was using bcache at one point at World Gaming, with a borrowed flash card, but luckily stopped doing so just before a (possibly different) corruption problem.</p>
<p>--dave<br>
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<div class="moz-cite-prefix">On 2019-05-14 5:12 p.m., Christopher Browne via talk wrote:<br>
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<div>I just saw a report of corruption problems with bcache in conjunction with GCC 9, and realized I had never actually heard of bcache before.</div>
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<div><a href="https://en.wikipedia.org/wiki/Bcache" target="_blank" moz-do-not-send="true">https://en.wikipedia.org/wiki/Bcache</a></div>
<div>- a layer in the kernel for using fast storage (e.g. - NAND, SSD) as a cache for spinning rust</div>
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<div>That's pretty cool; I don't have enough lurking SSD/NAND to have that be of *too* much interest. But wait, they kept working on it, so there's a filesystem...<br>
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<div><a href="https://en.wikipedia.org/wiki/Bcachefs" target="_blank" moz-do-not-send="true">https://en.wikipedia.org/wiki/Bcachefs</a></div>
<div>- a COW (Copy On Write) filesystem running atop BCache that has the modern stuff people seem to like such as snapshotting, encryption, checksums, compression (ala ZFS, Btrfs)<br>
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<div>Here's the corruption reference: <a href="https://bugzilla.kernel.org/show_bug.cgi?id=203573" target="_blank" moz-do-not-send="true">
https://bugzilla.kernel.org/show_bug.cgi?id=203573</a></div>
<div>And some more diagnosis here: <a href="https://bugzilla.redhat.com/show_bug.cgi?id=1708315" target="_blank" moz-do-not-send="true">
https://bugzilla.redhat.com/show_bug.cgi?id=1708315</a></div>
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<div>Sounds like it may be the wrong moment in time to be adopting BCache-related stuff ;-)</div>
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<div>Has anyone been poking at this sort of stuff? A *loooong* time ago, I used to follow ReiserFS pretty closely, back when that project was a technical matter, as opposed to being (rather properly!) overshadowed by a murder investigation :-(<br>
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<div>-- <br>
<div dir="ltr" class="m_3842636414283256945gmail_signature">When confronted by a difficult problem, solve it by reducing it to the<br>
question, "How would the Lone Ranger handle this?"<br>
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<pre class="moz-signature" cols="72">--
David Collier-Brown, | Always do right. This will gratify
System Programmer and Author | some people and astonish the rest
<a class="moz-txt-link-abbreviated" href="mailto:dave.collier-brown@indexexchange.com">dave.collier-brown@indexexchange.com</a> | -- Mark Twain
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