now I clear the situation for myself - all this problems is occur when using kernel with lowlatency patches by Andrew Morton. Maybe Jens know why its dont work or maybe Andrew ;) I can send kernel Oops and other data for analyzing to anyone who can make pktcdvd + lowlatency happy.
I use 2.6 and CONFIG_PREEMPT and haven't had any problems caused by the preemptible kernel. I think 2.6 + preempt gives you the same advantage as using 2.4 + lowlatency. Hmm. I'm also haven't problems when use pktcdvd + -ck patches for 2.6. But 2.4 + lowlatency kernel give oops when I try to mke2fs /dev/pktcdvd0, or when try to write something to pkt device and a strange timeout when
Hi Peter! Friday 22, at 08:04:48 PM you wrote: <skip> formatting with cdrwtool on /dev/srX device. Common Oops when writing something to pkt device: <skip> Oct 21 01:24:55 lks kernel: pktcdvd: inserted media is CD-RW Oct 21 01:24:55 lks kernel: pktcdvd: Fixed packets, 32 blocks, Mode-2 disc Oct 21 01:24:55 lks kernel: pktcdvd: enabled write caching on pktcdvd0 Oct 21 01:24:55 lks kernel: pktcdvd: Max. media speed: 10 Oct 21 01:24:59 lks kernel: pktcdvd: 590528kB available on disc Oct 21 01:25:01 lks kernel: elevator returned crap (-850920096) Oct 21 01:25:01 lks kernel: kernel BUG at ll_rw_blk.c:1108! Oct 21 01:25:01 lks kernel: invalid operand: 0000 Oct 21 01:25:01 lks kernel: CPU: 0 Oct 21 01:25:01 lks kernel: EIP: 1010:[__make_request+1211/2016] Tainted: P Oct 21 01:25:01 lks kernel: EIP: 1010:[<c01a536b>] Tainted: P Oct 21 01:25:01 lks kernel: EFLAGS: 00010096 Oct 21 01:25:01 lks kernel: eax: 00000024 ebx: 000000ff ecx: ffffffff edx: 00000000 Oct 21 01:25:01 lks kernel: esi: c3b11720 edi: cdff509c ebp: 00000004 esp: cd47fd38 Oct 21 01:25:01 lks kernel: ds: 1018 es: 1018 ss: 1018 Oct 21 01:25:01 lks kernel: Process mke2fs (pid: 2523, stackpage=cd47f000) Oct 21 01:25:01 lks kernel: Stack: c02542ff cd47fd60 00000000 00000000 00000000 cdff50a4 cbca3f80 000000ff Oct 21 01:25:01 lks kernel: 00000000 00000004 00000000 00000000 c01a57a8 00000000 ce9b03c0 00001000 Oct 21 01:25:01 lks kernel: 00000003 00000000 c013d5a8 00001000 c013d5b8 00001000 ce9b0120 00000004 Oct 21 01:25:01 lks kernel: Call Trace: [submit_bh+88/256] [block_read_full_page+648/688] [block_read_full_page+664/688] [create_buffers+98/224] [blkdev_get_block+30/80] Oct 21 01:25:01 lks kernel: Call Trace: [<c01a57a8>] [<c013d5a8>] [<c013d5b8>] [<c013caf2>] [<c014072e>] Oct 21 01:25:01 lks kernel: [ext3+141943050/256573440] [__refile_buffer+88/96] [__lock_page+186/208] [balance_dirty_state+15/96] [balance_dirty+6/32] [generic_make_request+166/192] Oct 21 01:25:01 lks kernel: [<d90246da>] [<c013c878>] [<c012b6da>] [<c013c6bf>] [<c013c756>] [<c01a5736>] Oct 21 01:25:01 lks kernel: [submit_bh+88/256] [write_locked_buffers+36/48] [write_some_buffers+262/352] [write_unlocked_buffers+22/32] [sync_buffers+34/96] [__block_fsync+37/80] Oct 21 01:25:01 lks kernel: [<c01a57a8>] [<c013b784>] [<c013b896>] [<c013b906>] [<c013ba12>] [<c01408f5>] Oct 21 01:25:01 lks kernel: [sys_fsync+85/160] [system_call+51/64] Oct 21 01:25:01 lks kernel: [<c013bc85>] [<c0109913>] Oct 21 01:25:01 lks kernel: Oct 21 01:25:01 lks kernel: Code: 0f 0b 54 04 ba 42 25 c0 5a 59 8b 44 24 18 85 c0 74 17 8b 4c -- WBR, Konstantin chat with ==>ICQ: 109916175 Lepikhov, speak to ==>JID: lakostis@jabber.org aka L.A. Kostis write to ==>mailto:lakostis@pisem.net.nospam ...The information is like the bank... (c) EC8OR