extremly slow startup of firefox if a nfs-share is not reachable

[scoopex]

Binary package hint: firefox

Firefox needs a few minutes for startup if a mounted filesystem is not reachable (i.e. a nfs-share).

The "/usr/bin/firefox" wrapper-script uses "/bin/pwd" to gather the current working directory.
--- Strace output
fstat64(3, {st_mode=S_IFDIR|0755, st_size=792, ...}) = 0
close(4) = 0
fstat64(3, {st_mode=S_IFDIR|0755, st_size=792, ...}) = 0
fcntl64(3, F_GETFL) = 0x8000 (flags O_RDONLY|O_LARGEFILE)
fcntl64(3, F_SETFD, FD_CLOEXEC) = 0
getdents64(3, /* 30 entries */, 4096) = 808
fstatat64(3, "bin", {st_mode=S_IFDIR|0755, st_size=2688, ...}, AT_SYMLINK_NOFOLLOW) = 0
fstatat64(3, "dev", {st_mode=S_IFDIR|0755, st_size=13960, ...}, AT_SYMLINK_NOFOLLOW) = 0
fstatat64(3, "etc", {st_mode=S_IFDIR|0755, st_size=8760, ...}, AT_SYMLINK_NOFOLLOW) = 0
fstatat64(3, "lib", {st_mode=S_IFDIR|0755, st_size=5576, ...}, AT_SYMLINK_NOFOLLOW) = 0
fstatat64(3, "nas", <unfinished ...>
---

The last fstat is blocking for a long time - replacing "/bin/pwd" by the shell-builtin "pwd" solves the problem.

$ diff -u /usr/bin/firefox mozilla.fixed
--- /usr/bin/firefox 2007-12-04 12:00:28.000000000 +0100
+++ mozilla.fixed 2008-01-15 16:34:03.000000000 +0100
@@ -106,7 +106,7 @@
   dist_bin="$curdir"
   found=1
 else
- here=`/bin/pwd`
+ here=`pwd`
   while [ -h "$progname" ]; do
     bn=`basename "$progname"`
     cd `dirname "$progname"`
----

Please submit this change to the firefox developer team if you think this change is useful....

[Alexander Sack (asac)]

On Tue, Jan 15, 2008 at 04:01:19PM -0000, scoopex wrote:
>
> The last fstat is blocking for a long time - replacing "/bin/pwd" by the
> shell-builtin "pwd" solves the problem.
>
> $ diff -u /usr/bin/firefox mozilla.fixed
> --- /usr/bin/firefox 2007-12-04 12:00:28.000000000 +0100
> +++ mozilla.fixed 2008-01-15 16:34:03.000000000 +0100
> @@ -106,7 +106,7 @@
> dist_bin="$curdir"
> found=1
> else
> - here=`/bin/pwd`
> + here=`pwd`
> while [ -h "$progname" ]; do
> bn=`basename "$progname"`
> cd `dirname "$progname"`
> ----
>

Thanks for that info/patch.

 affects ubuntu/firefox
 status inprogress
 affects ubuntu/firefox-3.0
 status incomplete

Could you verify if this is still an issue in firefox-3.0 ?

 - Alexander

[Marc Schoechlin (ms-256bit)]

Hi !

On Mon, Feb 25, 2008 at 04:45:06PM -0000, Alexander Sack wrote:
> Could you verify if this is still an issue in firefox-3.0 ?

I don`t thinks so - the firefox 3.0 script looks completly different
and does not make use of /bin/pwd.

Best regards
Marc Schöchlin

[Alexander Sack (asac)]

not a firefox 3 issue.

[Launchpad Janitor (janitor)]

[Expired for firefox (Ubuntu) because there has been no activity for 60 days.]

[scoopex (ms-ubuntu)]

Seems to be solved, you can close the issue.