[sent this to ext2-devel but haven't seen any other traffic there, so cc-ing it here] [Last week] while configuring a new box I came across a site suggesting: chattr -R -S +j +A /var/spool/postifx to improve postfix's speed on ext3, in lieu of mounting a separate fs there w/ data=journal. So I tried it. Both on the new box (2.4.21-7um) and on my laptop (about three csets shy of the v2.6.0-test6 tag). Both bombed out in the journal. My uml provider forwarded this from the uml console: Assertion failure in journal_revoke() at revoke.c:329: "!(__builtin_constant_p(BH_Revoked) ? constant_test_bit((BH_Revoked),(&bh->b_state)) : variable_test_bit((BH_Revoked),(&bh->b_state)))" Kernel panic: kernel BUG at revoke.c:329! I was able to use dmesg(1) to see the prink() the laptop generated but was unable to copy it down. It did reference journal... and var was remounted ro, so I presume it is a similar issue. I thought the earlier issues with data != ordered were corrected? Do known issues remain, or is this something new? -JimC