Recently got this patch working on 13.1, quiets the fans down on my Late 2003 PowerBook5,2. In fact the fans are barely on as far as I can tell, I'll have to investigate temperatures.

This was superseded by https://reviews.freebsd.org/D36420

In D36234#835283, @alfredo wrote:

Make this change powerpc* only in order to unbreak pfsync module and
the test infrastructure.

I'm also seeing this issue when zfs tries to mount my partition.

Considering PowerPC has been broken for quite some time, this seems a good approach, while the real issue on LLD or the kernel linker is not resolved.

Make this change powerpc* only in order to unbreak pfsync module and
the test infrastructure.

In D36234#822496, @markj wrote:

This is rather strange. The description makes it sound like there is a bug somewhere in powerpc relocation handling, nothing specifically to do with cpuset code.

working with gsoc student on ppc64 Linuxulator we see the same relocation problem with copyin/copyout calls from loadable modules

In D36234#822496, @markj wrote:

This is rather strange. The description makes it sound like there is a bug somewhere in powerpc relocation handling, nothing specifically to do with cpuset code.
Until the problem is better understood, I don't think it's appropriate to commit something like this - how do you know that the bug won't require another workaround next week?

This is rather strange. The description makes it sound like there is a bug somewhere in powerpc relocation handling, nothing specifically to do with cpuset code.

I think this is fine as is.
There's no need to check for nfs in the middle of a string, unless there's some use case I'm unaware of...

In D33603#796461, @alfredo wrote:

I like the idea! However I burned an DVD for a PowerBook G4 and I only see the regular disc icon.
What's your device model? (based on other sources your patch looks correct. Maybe my firmware is too old for this feature)

Seems legit

I like the idea! However I burned an DVD for a PowerBook G4 and I only see the regular disc icon.
What's your device model? (based on other sources your patch looks correct. Maybe my firmware is too old for this feature)

It really needs someone familiar with bootstrapping to review this.
(Except for being the nfs case, it really has nothing to do with nfs.)

@rmacklem, 'vfs.root.mountroot' is used as a kernel parameter to specify (or override) where is the root filesystem to be mounted and its partition type. It's usually something like "vfs.root.mountroot=ufs:/dev/da0s1a" if you use a local disk, or "vfs.root.mountroot=nfs:192.168.0.1:/tftpboot/root" if using nfs.

use strncmp instead of strstr in order to match only the beginning of the string

Beyond changing strstr() to a check for "nfs:" at the beginning of the
string, as suggested by sjg@, I don't see a problem with this.

Anything new on this?

edit: commented on wrong revision

Suspending this since it requires changes to continue.
The OS revision part is now being discussed in D34429.

Abandoned due to https://cgit.freebsd.org/src/commit/?id=298c3e8d6b6405cbea13a7a1a1fbc1ad5a45c378

You may cherry pick https://github.com/llvm/llvm-project/commit/53fc5d9b9a0110f097c6e9f7aa3bff3621eaf268 to avoid the local changes.