Re: heads up: kernel-5.12-rc1 and swapfile corruption
On Fri, Mar 5, 2021 at 5:06 PM Kevin Kofler via devel wrote: > > Kevin Fenzi wrote: > > Just a heads up for anyone running rawhide and using swapfiles: There's > > some nasty corruption in 5.12-rc1. ;( > > Note that this corrupts not only the swapfile as hinted at in the subject, > but also random data and/or metadata on the entire containing partition! > > This is explained more in detail at the given link: > > https://lwn.net/Articles/848265/ has details. > If using btrfs: sudo btrfs scrub start / watch -n 10 sudo btrfs scrub status /#optional That'll read every data and metadata block. Corruptions are reported in dmesg. If there's redundancy (e.g. dup or raid1+) it'll try to repair it from a good copy. Without a scrub, the same error detection (and fixups if possible) happens passively as blocks are read. -- Chris Murphy ___ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
Re: heads up: kernel-5.12-rc1 and swapfile corruption
Kevin Fenzi wrote: > Just a heads up for anyone running rawhide and using swapfiles: There's > some nasty corruption in 5.12-rc1. ;( Note that this corrupts not only the swapfile as hinted at in the subject, but also random data and/or metadata on the entire containing partition! This is explained more in detail at the given link: > https://lwn.net/Articles/848265/ has details. Kevin Kofler ___ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
Re: heads up: kernel-5.12-rc1 and swapfile corruption
On Fri, Mar 5, 2021 at 7:06 PM Kevin Fenzi wrote: > > Just a heads up for anyone running rawhide and using swapfiles: There's > some nasty corruption in 5.12-rc1. ;( Note it's only for swap files, not partitions or zram/zswap, so most default Fedora use cases should be unaffected. ___ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
heads up: kernel-5.12-rc1 and swapfile corruption
Just a heads up for anyone running rawhide and using swapfiles: There's some nasty corruption in 5.12-rc1. ;( https://lwn.net/Articles/848265/ has details. kevin signature.asc Description: PGP signature ___ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
