On Fri, 21 Jan 2011 15:34:31 +0900 Toshiyuki Okajima <toshi.okajima@xxxxxxxxxxxxxx> wrote: > Hi. > > I executed fsstress and then found that the system hung up. > At that time, I took the crash dump. Here is the backtrace of the process > which causes this hangup. > > [long description] > > --- a/lib/radix-tree.c > +++ b/lib/radix-tree.c > @@ -736,10 +736,11 @@ next: > } > } > /* > - * The iftag must have been set somewhere because otherwise > - * we would return immediated at the beginning of the function > + * We need not to tag the root tag if there is no tag which is set with > + * settag within the range from *first_indexp to last_index. > */ > - root_tag_set(root, settag); > + if (tagged > 0) > + root_tag_set(root, settag); > *first_indexp = index; > > return tagged; Thanks. It should be fairly simple to reproduce this hang with the userspace test harness (http://userweb.kernel.org/~akpm/stuff/rtth.tar.gz) and to then demonstrate that the fix fixes it. If you have time, could you please do that and then send the rtth updates to me? -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
