Hi. I thought you would want this feedback on the 2.4.19-pre2 patch. This message might be a bit long because I'm pretty new to Linux so I want to make sure what I am finding is not my fault. Before I forget, my CDRW is a Mitsumi CR4802TE (8x4x2x) and I'm compiling for i386 (AMD K6-III+). I took the 2.4.18 sources from kernel.org and patched them with the 2.4.19-pre2 kernel patch. Then I applied the packet-cd 2.4.19-pre2 patch. I configured pktcdvd and udf to compile into the kernel rather than as modules. Compiled and installed OK. After reboot: mknod /dev/pktcdvd0 b 97 0 pktsetup /dev/pktcdvd0 /dev/hdc mount /dev/pktcdvd0 /cdrw -t udf -o rw,noatime Drive whirrs a bit and ls /cdrw shows that a couple of files written under Win98 are present - in fact, I can cat the files. But after about 20 seconds I get: Unable to handle kernel NULL pointer dereference at virtual address 00000018 *pde = 00000000 Ooops: 0000 CPU: 0 EIP: 0010:[<c012d67f>] Not tainted EFLAGS: 00010202 eax: 00000000 ebx: cdfdb860 ecx: 00002000 edx 00000588 esi: 00000000 edi: 00000000 ebp: cdfdb860 esp: ce463e44 ds: 0018 es: 0018 ss: 0018 Process pktcdvd0 (pid: 166, stackpage - ce Stack: cdfdb860 00000000 00000000 00000000 c01c5d46 00000000 cdfdb860 cdfdb860 00001600 00000000 ce210380 00000000 00002000 c032b6ec 00000000 00000004 00000000 00000000 00000588 00000788 c01c6308 c032b6ec 00000000 cdfdb860 Call Trace: [<c01c5d46>] [<c01c6308>] [<c01d18cf>] [<c01d1acd>] [<c01d1c90>] [<c01d20ac>] [<c01d2207>] [<c01057ac>] Code: 8b 40 18 f6 c4 08 75 09 89 e8 e9 08 01 00 00 89 f6 e8 5f ff I've also tried applying the packet cd patch to the "raw" 2.4.18 kernel source (i.e. not patching the kernel to 2.4.19-pre2), but after compiling etc I get the same crash. I hope this helps. Chris This only happens if I mount rw, a ro mount seems fine. --- This message has been virus checked by Grisoft AVG during dispatch. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.332 / Virus Database: 186 - Release Date: 06/03/02