<html><body><div style="color:#000; background-color:#fff; font-family:Courier New, courier, monaco, monospace, sans-serif;font-size:10pt"><div> Hello, Following Paul's suggestion, I did the following: #> cd /tmp #> unlink cabal-install ... #> ls (-> nothing) #> cd .. #> umount /tmp #> zfs create rpool/export/tmp #> zfs set mountpoint=/tmp rpool/export/tmp #> cd /tmp; touch foo (-> ok, foo is there) #> cd ~; cabal install --global cabal-install tada! It's working It's probably a problem with tmpfs then... Hope this helps. Matthieu</div><div> </div> <div style="font-family: Courier New, courier, monaco, monospace, sans-serif; font-size: 10pt;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div dir="ltr"> <hr size="1"> De : Paul B. Henson <henson@acm.org> À : omnios-discuss@lists.omniti.com Envoyé le : Vendredi 10 mai 2013 2h50 Objet : Re: [OmniOS-discuss] cannot remove temp dir </div> <div class="y_msg_container"> > On 5/9/2013 7:28 AM, Matthieu Paindavoine wrote: > >> I am new to OmniOS. I am trying to setup a Haskell development >> environment and ran against a bump that's preventing me from completing >> the task. I mentioned this problem yesterday on IRC and got some help, >> but no definitive solution. > [...] >> execve("/usr/gnu/bin/rm", 0x08047D24, 0x08047D34) argc = 3 > [...] >> rmdir("cabal-install-1.16.0.2-21814") Err#17 EEXIST Matthieu provided remote access to the system he was working on, and I took a look at this. On the one hand, it's fairly clear why the directory can't be deleted: # ls -ld cabal-install-1.16.0.2-21814 drwx------ 3 root root 117 May 10 02:00 cabal-install-1.16.0.2-21814 ^^^ It's got a link count of 3, and per the tmpfs code: tmp_rmdir( [...] if (self->tn_nlink > 2) { mutex_exit(&self->tn_tlock); error = EEXIST; If a directory has a link count greater than two, it returns EEXIST. It's also fairly easy to replicate the scenario: # mkdir test # ls -ld test drwxr-xr-x 2 root root 117 May 10 02:27 test # link test test2 # ls -ld test test2 drwxr-xr-x 3 root root 117 May 10 02:27 test drwxr-xr-x 3 root root 117 May 10 02:27 test2 # rmdir test rmdir: failed to remove 'test': File exists # unlink test2 # rmdir test What's not so obvious is where the other link to the directory cabal-install-1.16.0.2-21814 is. For my simple test: # ls -lid test* 2675840857 drwxr-xr-x 3 root root 117 May 10 02:28 test 2675840857 drwxr-xr-x 3 root root 117 May 10 02:28 test2 The two links of course have the same inode, and if you search by inode: # find . -inum 267584085 ./test ./test2 They are both found. On the other hand, for the cabal directory: # ls -lid cabal-install-1.16.0.2-21814 2677295311 drwx------ 3 root root 117 May 10 02:00 cabal-install-1.16.0.2-21814 # find . -inum 2677295311 ./cabal-install-1.16.0.2-21814 There appears to only be one link with that inode on the file system. This is all in /tmp, mounted on tmpfs: # mount | grep tmp /tmp on swap read/write/setuid/devices/xattr/dev=83c0002 on Thu May 9 09:37:34 2013 So I don't really see that there's any other place a link could exist, it won't allow you to link across devices. Just for fun I tried a search starting at the root: # find / -inum 2677295311 /tmp/cabal-install-1.16.0.2-21814 Just the one link. So I'm a bit stumped. What I would probably do next is run whatever process generates the cabal directory under truss -f and see what's calling the link syscall. Matthieu, perhaps you could do that and make the output available? I think I might post this to the developer list, and see if anybody has any idea where that other link disappeared to. Matthieu, I'd also be curious to see what would happen if you unmounted /tmp from tmpfs and used just a regular zfs filesystem, perhaps the build is doing something weird that's poking a bug in tmpfs resulting in a dangling reference? _______________________________________________ OmniOS-discuss mailing list <a ymailto="mailto:OmniOS-discuss@lists.omniti.com" href="mailto:OmniOS-discuss@lists.omniti.com">OmniOS-discuss@lists.omniti.com</a> <a href="http://lists.omniti.com/mailman/listinfo/omnios-discuss" target="_blank">http://lists.omniti.com/mailman/listinfo/omnios-discuss</a> </div> </div> </div> </div></body></html>