Re: HEADS UP! ATAng committed

From: Thomas Quinot (thomas_at_FreeBSD.ORG)
Date: 08/28/03

  • Next message: Nate Lawson: "Re: Please test: USB floppies" 
    Date: Thu, 28 Aug 2003 00:39:59 +0200
To: Matt <matt@xtaz.co.uk>

    Le 2003-08-25, Matt écrivait :

    > Fatal trap 12: page fault while in kernel mode
    > fault virtual address = 0x0
    > fault code = supervisor write, page not present
    > instruction pointer = 0x8:0xc015e59e
    > stack pointer = 0x10:0xd717bac0
    > frame pointer = 0x10:0xd717bacc
    > code segment = base 0x0, limit 0xfffff, type 0x1b
    > = DPL 0, pres 1, def32 1, gran 1
    > processor eflags = interrupt enabled, resume, IOPL = 0
    > current process = 18 (swi3: cambio)
    > kernel: type 12 trap, code=0
    > Stopped at free_hcb+0x2e: movl %eax,0(%edx)

    OK, trivial one. Thanks to all who contributed feedback on this issue.

    Thomas.

    Index: atapi-cam.c
    ===================================================================
    RCS file: /home/ncvs/src/sys/dev/ata/atapi-cam.c,v
    retrieving revision 1.20
    diff -u -r1.20 atapi-cam.c
    --- atapi-cam.c 24 Aug 2003 17:48:05 -0000 1.20
    +++ atapi-cam.c 27 Aug 2003 22:35:56 -0000
    @@ -465,9 +465,10 @@
             if ((ccb_h->flags & CAM_DIR_MASK) == CAM_DIR_IN && (len & 1)) {
                 /* ATA always transfers an even number of bytes */
                 if (!(buf = hcb->dxfer_alloc = malloc(++len, M_ATACAM,
    - M_NOWAIT | M_ZERO)))
    + M_NOWAIT | M_ZERO))) {
                     printf("cannot allocate ATAPI/CAM buffer\n");
                     goto action_oom;
    + }
             }
             request->device = dev;
             request->driver = hcb; 

    -- 
    Thomas.Quinot@Cuivre.FR.EU.ORG
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