Hello,
I have an Adaptec AIC-7881U (rev 1) controller and kernel 2.4.6.
When I try to mount a CD the kernel segfaults.
This is the lines it prints:
>sr0: unsupported sector size 2336.
And then not so usefull things like:
>Unable to handle kernel NULL pointer dereference at virtual address 00000018
> printing eip:
>c683a61f
>*pde = 00000000
>Oops: 0000
[.....]
I have looked in the source code:
drivers/scsi/sr.c:
In line 604 begins a switch statement:
switch (sector_size) {
case 0:
case 2340:
case 2352:
sector_size = 2048;
/* fall through */
case 2048:
scsi_CDs[i].capacity *= 4;
/* fall through */
case 512:
break;
default:
kernel message --> printk("sr%d: unsupported sector size %d.\n",
i, sector_size);
scsi_CDs[i].capacity = 0;
scsi_CDs[i].needs_sector_size = 1;
//
// here it still has the "wrong" sector_size
//
}
scsi_CDs[i].device->sector_size = sector_size;
// and here it stores it.
I think that the "unsupported" sector size then leads to a segfault
somewhere later in the code.
Martin
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This archive was generated by hypermail 2b29 : Mon Jul 23 2001 - 21:00:11 EST