Re: permission denied: /gnu/store/...guile...

[Ludovic Courtès]

rekado <address@hidden> skribis:

> build error: executing 
> `/gnu/store/cnqmkmj40jmssnx6fkf9n0n3bqj5x426-guile-2.0.11/bin/guile': 
> Permission denied
> builder for 
> `/gnu/store/ni0hz29nyd051fsp2n73icjnwx28fajz-ibus-pinyin-1.5.0.tar.gz.drv' 
> failed with exit code 1
> @ build-failed 
> /gnu/store/ni0hz29nyd051fsp2n73icjnwx28fajz-ibus-pinyin-1.5.0.tar.gz.drv - 1 
> builder for 
> `/gnu/store/ni0hz29nyd051fsp2n73icjnwx28fajz-ibus-pinyin-1.5.0.tar.gz.drv' 
> failed with exit code 1
> cannot build derivation 
> `/gnu/store/gbdfw3z89dxw5nh3qw5gq3y2p5i2l1a2-ibus-pinyin-1.5.0.drv': 1 
> dependencies couldn't be built
> killing process 2391
> guix build: error: build failed: build of 
> `/gnu/store/gbdfw3z89dxw5nh3qw5gq3y2p5i2l1a2-ibus-pinyin-1.5.0.drv' failed
> address@hidden guix $ 
> ~~~~~~ 
>
> I have confirmed that this particular guile binary can be executed, so I 
> don't know what permission problem it encounters.  I attached strace to the 
> guix-daemon and it produced a long log which I have uploaded here: 
> http://elephly.net/downies/guile-permission-denied.txt

So this happens only with this derivation?

Looking at the strace output, I can’t see anything suspicious;
everything seems to happen as expected, namely this part:

--8<---------------cut here---------------start------------->8---
[pid 16379] statfs("/gnu/store", {f_type="EXT2_SUPER_MAGIC", f_bsize=4096, 
f_blocks=6417799, f_bfree=4940413, f_bavail=4608638, f_files=1641600, 
f_ffree=1378343, f_fsid={-557300761, 437310106}, f_namelen=255, f_frsize=4096}) 
= 0
[pid 16379] unshare(CLONE_NEWNS)        = 0
[pid 16379] mount(NULL, "/gnu/store", NULL, MS_REMOUNT|MS_BIND, NULL) = 0
--8<---------------cut here---------------end--------------->8---

The only thing that could go wrong is if the store somehow ended up
being mounted with MS_NOEXEC, but I don’t see that happening here.

I suppose you’re on Linux-libre 4.0.2, right?

> I have installed GuixSD from the 0.8.2 USB image onto a new, empty partition. 
>  I'm reusing only my home directory, which is located on a luks LVM.  I have 
> pulled the latest version of Guix and reconfigured the system a few hours 
> ago. 

... which means that other derivations build just fine, right?

> Derive([("out","/gnu/store/vvs2c9zzl9zwrq0zwrayjlih9cpwjbcq-ibus-pinyin-1.5.0.tar.gz","sha256","a85d458dcc51ea9fd65849e63002428b3fcb3b39adcbea9214b5cb4a4cbdbc96")],[("/gnu/store/479gki04zgbysxipcb1wdl56mh1bldbx-guile-2.0.11.drv",["out"]),("/gnu/store/p20cih7k80cpqka6f06100j1ycgf3fl1-module-import.drv",["out"]),("/gnu/store/s8bacxxryg87p2ag6gl46qz6jvpdm5qs-gnutls-3.4.0.drv",["out"]),("/gnu/store/w9g2dqsfgr6n8pslwmm2lgbka96qwig4-module-import-compiled.drv",["out"])],["/gnu/store/yhds5m08mgp3a3yb2gj9imn7pkap0fc1-ibus-pinyin-1.5.0.tar.gz-builder"],"x86_64-linux","/gnu/store/cnqmkmj40jmssnx6fkf9n0n3bqj5x426-guile-2.0.11/bin/guile",["--no-auto-compile","-L","/gnu/store/6fnbs4j7dsn6rc598d72caay00yggvh7-module-import","-C","/gnu/store/ww9kwrbs4h468vll6a3swg6dc3hr9f8i-module-import-compiled","/gnu/store/yhds5m08mgp3a3yb2gj9imn7pkap0fc1-ibus-pinyin-1.5.0.tar.gz-builder"],[("impureEnvVars","http_proxy
>  
> https_proxy"),("out","/gnu/store/vvs2c9zzl9zwrq0zwrayjlih9cpwjbcq-ibus-pinyin-1.5.0.tar.gz")])

However I don’t see this derivation mention in the strace log.  Could
you try to strace again the daemon, but this time just run:

  guix build -S ibus-pinyin

?

Thanks,
Ludo’.