ing the filesystem to ext4.
Let's establish whether you deleted the file before or after
conversion? Depending on exactly when it was deleted makes a big
difference what the strategy for recovery is.
Once I know that I can answer more.
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Chris Murphy
___
referred Target) is
Tue 2021-03-16. We've got 3-4 weeks to stabilize before we'd be out of
the lane.
https://fedorapeople.org/groups/schedule/f-34/f-34-key-tasks.html
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To unsubscrib
them in the middle of the
timeout! That's pretty curious and unexpected, but I don't know what
it means.
Some of "getting more and better information" on what's happening has
been discussed as a needed systemd enhancement. I'm not sure about the
time
On Tue, Feb 16, 2021 at 4:10 PM Jeremy Linton wrote:
> On 2/14/21 2:20 PM, Chris Murphy wrote:
> > This isn't sufficiently qualified. It does work to reduce space
> > consumption and write amplification. It's just that there's a tradeoff
> > that you dislike, which is I
Upstream discussion.
https://lore.kernel.org/linux-btrfs/b311ab52-86f7-1e7d-c0b6-15b2d050e...@suse.com/T/#mb16ec76e76ef6b7259c09c9221b1593ed097d617
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On Sat, Feb 13, 2021 at 9:45 PM Jeremy Linton wrote:
>
> Hi,
>
> On 2/11/21 11:05 PM, Chris Murphy wrote:
> > On Thu, Feb 11, 2021 at 9:58 AM Jeremy Linton wrote:
> >>
> >> Hi,
> >>
> >> On 1/1/21 8:59 PM, Chris Murphy wrote:
> >
> &
n half flipped
to f35 packages. But it's not every package all at once, and some may
stay on f34 for a while longer.
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://bugzilla.redhat.com/show_bug.cgi?id=1928442
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gram to consider 100G of free space as 200G
accounting for compression. It's still just 100G, and compression
maybe gets you a 50-70G file for things like binaries. And for text
files it can be quite a lot. And for multimedia files you're not going
to see any compression.
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Chris Murphy
n shutdown (it doesn't stop properly
> and the timeout is 90 seconds). 4 minutes is a lot though, so you might
> be seeing something else as well?
This is the one I'm experiencing.
https://bugzilla.redhat.com/show_bug.cgi?id=1925320
With recent updates it's become transient, but st
On Thu, Feb 11, 2021 at 9:29 PM Matthew Miller wrote:
>
> On Thu, Feb 11, 2021 at 06:50:05PM -0700, Chris Murphy wrote:
> > OK it's updated.
> > https://fedoraproject.org/wiki/Releases/Rawhide#Questions_and_Answers
> >
> > I couldn't figure out the offline dis
On Thu, Feb 11, 2021 at 9:58 AM Jeremy Linton wrote:
>
> Hi,
>
> On 1/1/21 8:59 PM, Chris Murphy wrote:
> > Anyway, compress=zstd:1 is a good default. Everyone benefits, and I'm
> > not even sure someone with a very fast NVMe drive will notice a slow
> >
OK it's updated.
https://fedoraproject.org/wiki/Releases/Rawhide#Questions_and_Answers
I couldn't figure out the offline distrosync method, dnf complained
about it maybe being a plugin but couldn't help me find it.
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On Thu, Feb 11, 2021 at 4:29 PM Neal Gompa wrote:
>
> On Thu, Feb 11, 2021 at 6:24 PM Matthew Miller
> wrote:
> >
> > On Thu, Feb 11, 2021 at 01:44:42PM -0700, Chris Murphy wrote:
> > > sudo dnf config-manager --set-enabled
> > > fedora,fedora-modular,
his should work for systems updated before or after branch. The more
confusion with mixed Rawhide and current release packages, the more
distro-sync will have to clean up.
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To u
On Tue, Feb 9, 2021 at 8:02 AM Phillip Susi wrote:
>
>
> Chris Murphy writes:
>
> > Basically correct. It will merge random writes such that they become
> > sequential writes. But it means inserts/appends/overwrites for a file
> > won't be located with the origina
On Tue, Feb 9, 2021 at 7:34 PM pmkel...@frontier.com
wrote:
>
>
>
> On 2/9/21 18:11, Chris Murphy wrote:
> > On Tue, Feb 9, 2021 at 3:29 PM pmkel...@frontier.com
> > wrote:
>
> >> As I understand f3 it just writes files to the flash and reads them back
>
On Tue, Feb 9, 2021 at 3:29 PM pmkel...@frontier.com
wrote:
>
>
>
> On 2/9/21 13:19, Chris Murphy wrote:
> > On Tue, Feb 9, 2021 at 10:23 AM pmkel...@frontier.com
> > wrote:
> >>
> >>
> >> I've seen several ISOs lately that after they we
On Tue, Feb 9, 2021 at 12:41 PM Matthew Miller wrote:
>
> On Tue, Feb 09, 2021 at 11:36:34AM -0700, Chris Murphy wrote:
> > Anaconda requires a new subvolume for / but doesn't require a
> > reformat. The Custom UI shows the / mountpoint's reformat checkbox
> > grayed out
On Tue, Feb 9, 2021 at 12:26 PM Chris Murphy wrote:
>
> On Tue, Feb 9, 2021 at 11:40 AM Martin Kolman wrote:
> >
> > On Tue, 2021-02-09 at 09:50 -0700, Chris Murphy wrote:
> > > On Tue, Feb 9, 2021 at 9:15 AM Michel Alexandre Salim
> > > wrote:
> > >
On Tue, Feb 9, 2021 at 11:40 AM Martin Kolman wrote:
>
> On Tue, 2021-02-09 at 09:50 -0700, Chris Murphy wrote:
> > On Tue, Feb 9, 2021 at 9:15 AM Michel Alexandre Salim
> > wrote:
> > > There's a further complication: Chris just informed me that on BIOS
&
checked, which might give the impression that whole
partition will be reformatted. It's confusing but just a cosmetic UI
anomaly.
There is a way to do this with kickstart, btrfs --mkfsoptions
https://pykickstart.readthedocs.io/en/latest/kickstart-docs.html#bt
On Tue, Feb 9, 2021 at 11:05 AM Stephen Snow wrote:
>
> To just maybe add to this, I have experienced the write/failure/rewrite
> cycle at time with media writer as well.
Curious because it does verify by re-reading the whole stick.
--
Chr
after
> completing the install. The restart ran normally and I have seen no
> problems. Though I havent tested 0207 extensively. I'll get started
> again when Branched F34 is available.
This could also be transient corruptions on read. USB sticks
notoriousl
ssed.
So if it's not difficult to exclude compression on /boot/ that's
probably preferred?
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On Mon, Feb 8, 2021 at 8:20 AM Phillip Susi wrote:
>
>
> Chris Murphy writes:
>
> > I showed that the archived journals have way more fragmentation than
> > active journals. And the fragments in active journals are
> > insignificant, and can even be reduced b
On Mon, Feb 8, 2021 at 7:56 AM Phillip Susi wrote:
>
>
> Chris Murphy writes:
>
> >> It sounds like you are arguing that it is better to do the wrong thing
> >> on all SSDs rather than do the right thing on ones that aren't broken.
> >
> > No I'm suggest
Snapshots results in nodatacow files being subject to
cow.
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On Mon, Feb 8, 2021 at 7:13 PM Kevin Kofler via devel
wrote:
>
> Chris Murphy wrote:
> > If you want to take the risk of acquiring a rootkit that can
> > permanently take control of your firmware, that is up to you. It
> > should not be a distribution recomme
eds
to go somewhere in:
https://github.com/storaged-project/blivet/blob/3.4-devel/blivet/devices/btrfs.py
Am I on the right track, or does it need to go somewhere else, or in
addition to that?
Thanks,
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On Mon, Feb 8, 2021 at 5:19 PM Kevin Kofler via devel
wrote:
>
> Chris Murphy wrote:
> > Yeah I definitely do not want Fedora in a position where anyone has to
> > give users advice like "you need to disable UEFI Secure Boot" in order
> > to do X. Be it testing R
On Mon, Feb 8, 2021 at 4:47 PM Martin Whitaker
wrote:
>
> On 07/02/2021 22:23, Chris Murphy wrote:
> > On Sun, Feb 7, 2021 at 2:08 AM Neal Gompa wrote:
> >>
> >> Hey all,
> >>
> >> I discovered today that there's a new replacement for memtest86+ th
onditionally already, even though it's a BIOS only
utility and there isn't a boot entry for it in the bootloader.
It's a bit obscure how to use it, given there's no menu entry for it.
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d, we'd use the BIOS version of the memory
tester; and with CSM disabled, we'd use the UEFI version of the memory
tester?
- As far as I'm aware, enabling CSM requires disabling UEFI Secure Boot.
* Any UEFI memory tester needs to be signed with Fedora's signing key,
same as grubx64.efi so that it works
On Fri, Feb 5, 2021 at 8:23 AM Phillip Susi wrote:
> Chris Murphy writes:
>
> > But it gets worse. The way systemd-journald is submitting the journals
> > for defragmentation is making them more fragmented than just leaving
> > them alone.
>
> Wait, doesn't it jus
ems accidental.
Defragmenting datacow files makes some sense on rotating media. But
that's the exception, not the rule.
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eeing the allocated storage
> blocks on host.
I think it's up to the application to free the pages, if they aren't
freed somehow then the kernel can't know what blocks to issue discards
for.
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https://pastebin.com/UggEiH2J
That behavior is no different for nodatacow fallocated journals on
Btrfs. There's no point in defragmenting these no matter the file
system. I don't have to profile this on HDD, I know that even in the
best case you're not likely to get (certainly not guaranteed)
for changing more than one thing at once.
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On Thu, Feb 4, 2021 at 2:07 PM Chris Murphy wrote:
>
> See the 2 minute gap? There are a bunch of user services that didn't
> quit when SIGTERM was issued, for reasons we don't know. There is a 2
> minute timer at which point systemd issues a SIGKILL to everything
> that's p
a bug for dbus-broker? I don't know. Maybe.
https://bugzilla.redhat.com/show_bug.cgi?id=1925320
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Fedora Code of
On Thu, Feb 4, 2021 at 6:28 AM Lennart Poettering
wrote:
>
> On Mi, 03.02.21 22:32, Chris Murphy (li...@colorremedies.com) wrote:
> > It doesn't. It waits indefinitely.
> >
> > [* ] A start job is running for
> > /dev/disk/by-uuid/cf9c9518-45d4-43d6-8a0a-294994c3
ate+nodatacow
which makes the journals behave the same as on ext4 where you also
don't do defragmentation.
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On Wed, Feb 3, 2021 at 10:32 PM Chris Murphy wrote:
>
> On Thu, Jan 28, 2021 at 7:18 AM Lennart Poettering
> wrote:
> >
> > On Mi, 27.01.21 17:19, Chris Murphy (li...@colorremedies.com) wrote:
> >
> > > Is it possible for a udev rule to have a timeout? For exa
has already happened by writing journal data into
this journal file during its lifetime. Just rename it on rotate.
That's the least IO impact possible at this point. Defragmenting it
means even more writes, and not much of a gain if any, unless it's
datacow which isn't the journald defaul
On Wed, Feb 3, 2021 at 9:41 AM Lennart Poettering
wrote:
>
> On Di, 05.01.21 10:04, Chris Murphy (li...@colorremedies.com) wrote:
>
> > f27a386430cc7a27ebd06899d93310fb3bd4cee7
> > journald: whenever we rotate a file, btrfs defrag it
> >
> > Since systemd-jo
On Thu, Jan 28, 2021 at 7:18 AM Lennart Poettering
wrote:
>
> On Mi, 27.01.21 17:19, Chris Murphy (li...@colorremedies.com) wrote:
>
> > Is it possible for a udev rule to have a timeout? For example:
> > /usr/lib/udev/rules.d/64-btrfs.rules
> >
> > This
https://bugs.kde.org/show_bug.cgi?id=427092
--- Comment #24 from Chris Murphy ---
There is quite a bit of information about a Btrfs file system in sysfs, once
it's mounted: /sys/fs/btrfs/$UUID/ including the number of and path to devices.
--
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You
bug report is both problem *and* hardware specific. When people do
me too when they don't have the same hardware as the report, it
renders the report useless and will be ignored.
At this point I'd look in linux-bluetooth@ list to see if the person
in comment 25 actually pinged the list, and if
failure is on UEFI
(Secure Boot or not), or BIOS, and how the failure manifests on-screen
if at all, I'm a bit lost where to keep looking.
I'm not seeing anything unusual about LBA 0 where part 1 of the
isolinux bootloader is located, or the EFI system partition.
--
Chris Murphy
On Mon, Feb 1, 2021 at 2:01 PM Chris Murphy wrote:
>
> I'm seeing:
>
> [1.179693] Btrfs loaded, crc32c=crc32c-generic, zoned=yes
>
> Someone adventurous might want to figure out how to get it to use
> crc32c_intel instead.
Ignore the above.
As it turns out cr
NFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_CRC32C_INTEL=m
And then retest.
But also, the difference in performance between xxhash and crc32c is
pretty tiny. I'm using all four hashes on various file systems, and up
until there's a heavy IO workload, there's no performance difference
among them.
--
Chris Mu
e.g. right now none of these hashes are in
kernel 5.4 which is the current long term kernel. Upstream takes that
into account. Fedora doesn't need to. But since the work on xxh3 is
completed, it's an open question if that's a better candidate for a
default, or if some other c
ing state but there's no single API that apps can use
to do that.
https://pagure.io/fedora-workstation/blob/master/f/hibernationstatus.md
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t
some feedback with it set to 120 before pushing harder.
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ways to screw it up that this... I've forgotten to set count=
before and end up writing megabytes of zeros before I CTRL-C. That was
pretty funny.
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On Thu, Jan 28, 2021 at 2:08 PM Adam Williamson
wrote:
>
> On Thu, 2021-01-28 at 13:46 -0700, Chris Murphy wrote:
> >
> > OK I'm seeing this problem in a VM with
> > Fedora-Workstation-Live-x86_64-Rawhide-20210128.n.0.iso but I'm not
> > sure how consistent it is
On Thu, Jan 28, 2021 at 1:46 PM Chris Murphy wrote:
>
> VM 5.11.0-0.rc5.20210127git2ab38c17aac1.136.fc34.x86_64
> [0.701792] Memory: 3016992K/4190656K available (43019K kernel
> code, 11036K rwdata, 27184K rodata, 5036K init, 31780K bss, 1173408K
> reserved, 0K cma-reserved
On Thu, Jan 28, 2021 at 12:34 PM Alexander Bokovoy wrote:
>
> On to, 28 tammi 2021, Chris Murphy wrote:
> >> >> > ram + zram + in-memory-zwap in the check.
> >> >>
> >> >> For bare metal IPA uses the python3-psutil call:
> >> >&g
the free command). That is the same fractional difference as
you're reporting above - 70% less total memory. That could be a kernel
bug.
The zram-generator sets the zram device size as a fraction of total
memory, it doesn't have a way to affect total memory.
--
Chris Murphy
__
t; The estimate takes into account that the system needs some
> > page cache to function well, and that not all reclaimable
> > slab will be reclaimable, due to items being in use. The
> > impact of those factors will vary from sys
iptError: Less than the minimum 1.2GB of RAM is available,
> 0.77GB available.
We need more info. Something is consuming more memory than the provisioning
expects. If there was no swap, the problem would be worse.
Chris Murphy
___
devel
On Thu, Jan 28, 2021 at 1:03 AM Greg KH wrote:
>
> On Wed, Jan 27, 2021 at 05:19:38PM -0700, Chris Murphy wrote:
> >
> > Next, is it possible to enhance udev so that it can report the number
> > of devices expected for a Btrfs file system? This information is
> > cur
in the Btrfs superblock found on each device in the
num_devices field.
https://github.com/storaged-project/udisks/pull/838#issuecomment-768372627
Thanks,
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On Tue, Jan 5, 2021 at 10:04 AM Chris Murphy wrote:
>
> f27a386430cc7a27ebd06899d93310fb3bd4cee7
> journald: whenever we rotate a file, btrfs defrag it
>
> Since systemd-journald sets nodatacow on /var/log/journal the journals
> don't really fragment much. I typical
https://bugs.kde.org/show_bug.cgi?id=427092
--- Comment #23 from Chris Murphy ---
First step in udisks for duplicate mount points, and possible way forward for
additional work needed:
https://github.com/storaged-project/udisks/pull/838
https://gitlab.gnome.org/GNOME/gvfs/-/issues/519
On Sat, Jan 23, 2021 at 4:39 PM Matthew Miller wrote:
>
> On Sat, Jan 23, 2021 at 03:11:32PM -0700, Chris Murphy wrote:
> > - low memory (4G or less, somewhat subjective)
>
> From what I can see in my informal survey, a lot of 8GB users are benefiting
> too, with 1-2GB i
/var/swap/swapfile1
swapon /var/swap/swapfile1
Be sure to read the limitations in 'man 5 btrfs' - the above takes
care of most concerns, the other one is it needs to be a single device
Btrfs. Other arrangements are possible. Ping me on irc (cmurf) if you
have questions about alternatives.
--
Ch
rier to adopting this.
It's file system specific. The interface is the same for ext4, XFS,
Btrfs - but on-disk representation is different. XFS has three
different representations depending on xattr size, so it might seem to
be no cost (preallocated). I'm not sure
rnald[555]: System Journal
(/var/log/journal/6a8c936a3d3048dfb12c1e99bd3a2ad5) is 48.0M, max
4.0G, 3.9G free.
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Fedo
e once the revocation database is pushed. Fedora hasn't
decided to push the revocation database automatically, but other
distros do so aggressively. Microsoft has thus far delayed pushing the
post-BootHole revocation db, but eventually they will sometime this
yea
On Wed, Jan 20, 2021 at 1:45 AM Frantisek Zatloukal wrote:
>
> On Wed, Jan 20, 2021 at 4:45 AM Chris Murphy wrote:
>>
>>
>> It's a teeny modification but you could make it macOS 10.13 High
>> Sierra as the cutoff. There's a chunk of hardware for which 10.13 is
>
system,
APFS, that integrates a volume manager. That write up is probably
easily adapted for APFS - the use case is to get an exact
out-of-the-box setup for back to back test installs without having to
clean install macOS. If it's useful, I can help with a refresh.
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What kernel version? I suggest updating it. You can use a Fedora 32 kernel
on Fedora 31.
Even better, upgrade to 33. :D
There have been recent changes in the kernel related to random entropy
generation during boot. Touching the keyboard helps produce more entropy.
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On Fri, Jan 15, 2021 at 1:17 AM Tim via users
wrote:
>
> On Thu, 2021-01-14 at 19:56 -0700, Chris Murphy wrote:
> > Clearly those lifetime numbers are bogus, as well as sometimes
> > reporting a lower lifetime value than the test before it. It's
> > getting younger!! M
On Thu, Jan 14, 2021 at 6:58 PM Gordon Messmer wrote:
>
> On 1/13/21 11:21 PM, Chris Murphy wrote:
> > 548 hours is not an old drive. It shouldn't have any write errors. But
> > as a drive ages there might be some and they should be handled
> > transparently and not af
Hmmm
https://bugzilla.redhat.com/show_bug.cgi?id=1908005
https://bugzilla.redhat.com/show_bug.cgi?id=1911038
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Fedora Code of
ld be concerned about?
Anything in dmesg or journalctl, at the time of this message?
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Fedora Co
U/Linux distributions?
> These distributions can also switch to the same GRUB2 configuration.
> They will all start fighting for the same file. That's why a separate
> /boot/efi/EFI/$distro_name/grub.cfg configuration file was introduced.
That's Fedora specific. Upstream puts it in /boot/grub/ regardless
?
GRUB can read EBRs.
For bootloaders that don't understand EBR, they'll need to stick to
the simple ways they're doing things already.
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On Wed, Jan 13, 2021 at 1:09 PM Sreyan Chakravarty wrote:
>
> On Tue, Jan 12, 2021 at 9:04 AM Chris Murphy wrote:
> >
> > Because of the --init-csum-tree failure i'm a bit concerned that it's
> > possible the --repair step didn't completely repair things. So... just
&
D.
I missed that this is a 2.5 inch drive.
Probably time for it to have a dirt nap. Or use it for torture testing
file systems!
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On Wed, Jan 13, 2021 at 2:41 AM Sreyan Chakravarty wrote:
>
> On Tue, Jan 12, 2021 at 9:16 AM Chris Murphy wrote:
> >
> >
> > -x has more information that might be relevant including firmware
> > revision and some additional logs for recent drive reported error
limitations that won't matter.
> 5) When you say "checksum errors in the month's old report" - which
> report are you referring to ? The thin-LVM crash or the smartctl crash
> ?
LVM thin.
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n it could be 1MiB. If the core.img is pushing that, and
if there's some idea to implement an A/B approach in this partition
for atomic updating, then 2MiB is fine, even 20MiB is fine - to me
those are all the same size :D Even coming from the SD Card in a
Raspberry Pi type use case.
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__
hich the BLS actually
> prefers over the ESP if found.
I tentatively agree. We should ensure coordination with coreos/bootupd
folks and boot loader spec folks that we're all on the same page.
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On Tue, Jan 12, 2021 at 6:21 AM Richard Shaw wrote:
>
> On Mon, Jan 11, 2021 at 11:49 PM Chris Murphy wrote:
>>
>> On Mon, Jan 11, 2021 at 12:57 PM Richard Shaw wrote:
>>
>> > I'm playing around with cryptocurrency and the current one downloads the
>&
On Mon, Jan 11, 2021 at 12:24 AM Sreyan Chakravarty wrote:
>
> On Sun, Jan 10, 2021 at 3:10 AM Chris Murphy wrote:
> > Sreyan, is the drive that this file system is on the same drive as in
> > this reported thread?
> > https://lists.fedoraproject.org/archives/list/users
ot the best UX as a hint that an
adjustment needs to be made. But I want to make sure there isn't
something else going wrong.
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eally
obvious).
Ideally have the sysrq+t ready to just hit enter. When the
sluggishness happens, hit return.
If that's all normal we might have to get into bcc-tools or something.
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T
hemselves surely operate on
uncompressed data, and then it's compressed upon being written to
disk.
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Fedora
67301
188 Command_Timeout 0x0032 100 100 000Old_age
Always - 98785820672
But the value is well above threshold for both so I'm not worried about it.
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To
s for the
init-csum-tree. It really should not be a lot, it's less complicated
than the repair by a lot. Glad that worked though, phew!
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Chris Murphy
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e. People have
better things to do than debug stuff. But it's sometimes a necessary
effort because we really are at significant confidence in Btrfs
stability equivalent to other file systems, even though we're aware of
its fragility in certain bad failure cases like this one. The only way
it gets better i
r this particular kind of damage.
https://lists.fedoraproject.org/archives/list/users@lists.fedoraproject.org/message/4G52PRZ4ETFSXCSOJYFBGP6H64FRSRZT/
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Chris Murphy
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<-->nodatacow, is a
conventional copy operation. It also means as long as you aren't
switching between them, you automatically get a reflink copy because
the default on Fedora 33 is cp --reflink=auto, i.e. it'll try to
reflink copy if it can, and if it can't it'll fall back to a
conventional
ctory has the attribute now, the duplicate will inherit the
> > attribute.
>
> That's somewhat painful as the file is over 900GB and will need to be
> copied to another drive and then back again, but thanks anyway.
As long as the cache mode is writeback or none, it'll be OK.
--
Chris Mur
On Sun, Jan 10, 2021, 3:52 AM Patrick O'Callaghan
wrote:
On Sat, 2021-01-09 at 18:01 -0700, Chris Murphy wrote:
> > > Does this mean that my VM image subvolume is being included in the
> > > compression? If that's the case I'll cease and desist.
> >
> > Did you
On Sat, Jan 9, 2021 at 7:25 PM Richard Shaw wrote:
>
> On Sat, Jan 9, 2021 at 6:25 PM Chris Murphy wrote:
>>
>> On Sat, Jan 9, 2021 at 6:11 AM Richard Shaw wrote:
>> >
>> > On Fri, Jan 8, 2021 at 10:12 AM Qiyu Yan wrote:
>> >>
>> >> I
On Sat, Jan 9, 2021 at 4:15 AM Patrick O'Callaghan
wrote:
>
> On Fri, 2021-01-08 at 00:03 -0700, Chris Murphy wrote:
> > On Thu, Jan 7, 2021 at 5:52 AM Patrick O'Callaghan
> > wrote:
> > >
> > > I did the following:
> > >
> >
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