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    SubjectRe: 2.5.39 Oops on boot (device_attach+0x3a)
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    On Mon, 2002-09-30 at 20:50, Thomas Molina wrote:
    > On 30 Sep 2002, Steven Cole wrote:
    >
    > > I tried to boot 2.5.39 on my home machine and got the
    > > following oops on boot with CONFIG_KALLSYMS=y (thanks Ingo!).
    > >
    > > *pde = 00000000
    > > Oops: 0002
    > >
    > > CPU: 0
    > > EIP: 0060:[<c01a7979>] Not tainted
    > > EFLAGS: 00010286
    > > EIP is at attach+0x1d/0x30
    > > eax: c0276724 ebx: 00000000 ecx: c40c8060 edx: c40c8078
    > > esi: c0276700 edi: 00000000 ebp: 00000000 esp: c40ddf94
    > > ds: 0068 es: 0068 ss: 0068
    > > Process swapper (pid: 1, threadinfo=c40dc000 task=c40da040)
    > > Stack: 00000000 c01a7a5a c40c8060 c40c8060 c01a7c20 c40c8060 c40c8060 c40c8060
    > > c40d7720 c028b879 c40c8060 00000001 c02b9bf4 00000000 00000000 00000000
    > > c027e6f2 c0105030 c010504c c0105030 00000000 00000000 00000000 c0105495
    > > Call Trace:
    > > [<c01a7a5a>] device_attach+0x3a/0x40
    > > [<c01a7c20>] device_register+0xd0/0x120
    > > [<c0105030>] init+0x0/0x160
    > > [<c010504c>] init+0x1c/0x160
    > > [<c0105030>] init+0x0/0x160
    > > [<c0105495>] kernel_thread_helper+0x5/0x10
    > >
    >
    > I believe the oops on boot people have been seeing in 2.5.39 may be
    > related to problems inserting ide-scsi modules (sr_mod, mod_scsi,
    > ide-scsi). Since I have to get up early tomorrow I'm going to beg off for
    > tonight, but I can reliably produce the above oops. I'll provide full
    > data and explanations when I'm not so tired.
    >
    It's good that the above oops can be reproduced, so here is some more
    info on my setup:

    [steven@localhost linux-2.5.39-linus]$ grep "=m" .config
    CONFIG_PARPORT=m
    CONFIG_PARPORT_PC=m
    CONFIG_PARPORT_PC_CML1=m
    CONFIG_PRINTER=m
    CONFIG_AUTOFS_FS=m
    CONFIG_FAT_FS=m
    CONFIG_MSDOS_FS=m
    CONFIG_VFAT_FS=m
    CONFIG_NLS_ISO8859_1=m

    [steven@localhost linux-2.5.39-linus]$ grep SCSI .config
    # SCSI device support
    # CONFIG_SCSI is not set
    # Old non-SCSI/ATAPI CD-ROM drives
    # CONFIG_CD_NO_IDESCSI is not set
    [steven@localhost linux-2.5.39-linus]$ find . -name Makefile | xargs grep sr_mod
    ./drivers/scsi/Makefile:obj-$(CONFIG_BLK_DEV_SR) += sr_mod.o
    ./drivers/scsi/Makefile:sr_mod-objs := sr.o sr_ioctl.o sr_vendor.o
    [steven@localhost linux-2.5.39-linus]$ grep BLK_DEV_SR .config
    [steven@localhost linux-2.5.39-linus]$

    So, I'm not sure that a scsi-related module is the cause here.

    Cheers,
    Steven



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