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8mT2Eh9SkH+YVOmaKsajgZgrBxA7fWmGoxXswEVxJIFj3vW7yNc0C5HaUdYa5iGOMs4kg2ht4s7yy7NRQuh7BifWjo6BQ6k4S1H+6axZucxhSV1L6zN9d+lr3Xo/vy1unzA== Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.50.3 X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 On Wed, 2025-11-05 at 14:16 +0100, Christian Brauner wrote: > On Wed, Nov 05, 2025 at 08:09:03AM -0500, James Bottomley wrote: > > On Wed, 2025-11-05 at 12:47 +0100, Christian Brauner wrote: [...] > > > And suspend/resume works just fine with freeze/thaw. See commit > > > eacfbf74196f ("power: freeze filesystems during suspend/resume") > > > which implements exactly that. > > >=20 > > > The reason this didn't work for you is very likely: > > >=20 > > > cat /sys/power/freeze_filesystems > > > 0 > > >=20 > > > which you must set to 1. > >=20 > > Actually, no, that's not correct.=C2=A0 The efivarfs freeze/thaw logic > > must run unconditionally regardless of this setting to fix the > > systemd bug, so all the variable resyncing is done in the thaw > > call, which isn't conditioned on the above (or at least it > > shouldn't be). >=20 > It is conditioned on the above currently but we can certainly fix it > easily to not be. It still seems to be unconditional in upstream 6.18-rc4 kernel/power/hibernate.c with only freeze being conditioned on the setting of the filesystem_freeze variable but I haven't checked -next. However, if there's anything in the works to change that we would need an exception for efivarfs, please ... we can't have a bug fix conditioned on a user setting. Regards, James