D25559.id74099.diff
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D25559.id74099.diff
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	Index: sys/compat/linux/linux_stats.c
	===================================================================
	--- sys/compat/linux/linux_stats.c
	+++ sys/compat/linux/linux_stats.c
	@@ -165,6 +165,20 @@

	bzero(&tbuf, sizeof(tbuf));
	tbuf.st_dev = dev_to_ldev(buf->st_dev);
	+
	+ /*
	+ * Return the same st_dev for every devfs instance. The reason
	+ * for this is to work around an idiosyncrasy of glibc getttynam()
	+ * implementation: it checks whether st_dev returned for fd 0
	+ * is the same as st_dev returned for the target of /proc/self/fd/0
	+ * symlink, and with linux chroots having their own devfs instance,
	+ * the check will fail if you chroot into it.
	+ */
	+ if ((S_ISCHR(buf->st_mode) \|\| S_ISBLK(buf->st_mode)) &&
	+ rootdevmp != NULL) {
	+ tbuf.st_dev = dev_to_ldev(rootdevmp->mnt_stat.f_fsid.val[0]);
	+ }
	+
	tbuf.st_ino = buf->st_ino;
	tbuf.st_mode = buf->st_mode;
	tbuf.st_nlink = buf->st_nlink;