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    Subject"mount: could not find filesystem" - aacraid? (was: Re: 2.6.26-git0: IDE oops during boot)
    Date

    Hi,

    On Thursday 14 February 2008, Kamalesh Babulal wrote:
    > Bartlomiej Zolnierkiewicz wrote:
    > > Hi,
    > >
    > > On Tuesday 12 February 2008, Kamalesh Babulal wrote:
    > >> Bartlomiej Zolnierkiewicz wrote:
    > >>> Hi,
    > >>>
    > >>> On Monday 11 February 2008, Kamalesh Babulal wrote:
    > >>>> Nish Aravamudan wrote:
    > >>>>> On 2/7/08, Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> wrote:
    > >>>>>> On Thursday 07 February 2008, Kamalesh Babulal wrote:
    > >>>>>>> Bartlomiej Zolnierkiewicz wrote:
    > >>>>>>>> Hi,
    > >>>>>>>>
    > >>>>>>>> On Wednesday 06 February 2008, Pavel Machek wrote:
    > >>>>>>>>> On Wed 2008-02-06 11:53:34, Pavel Machek wrote:
    > >>>>>>>>>> Hi!
    > >>>>>>>>>>
    > >>>>>>>>>> Trying to boot 2.6.25-git0 (few days old), I get
    > >>>>>>>>>>
    > >>>>>>>>>> BUG: unable to handle kernel paging request at ffff..ffb0
    > >>>>>>>>>> IP at init_irq+0x42e
    > >>>>>>>> init_irq? hmm...
    > >>>>>>>>
    > >>>>>>>>>> Call trace:
    > >>>>>>>>>> ide_device_add_all
    > >>>>>>>> this comes from ide-generic
    > >>>>>>>> (Generic IDE host driver)
    > >>>>>>>>
    > >>>>>>>>>> ide_generic_init
    > >>>>>>>>>> kernel_init
    > >>>>>>>>>> child_rip
    > >>>>>>>>>> vgacon_cursor
    > >>>>>>>>>> kernel_init
    > >>>>>>>>>> child_rip
    > >>>>>>>>>>
    > >>>>>>>>>> Excerpt from config:
    > >>>>>>>>>>
    > >>>>>>>>>> CONFIG_IDE=y
    > >>>>>>>>>> CONFIG_BLK_DEV_IDE=y
    > >>>>>>>>> Disabling CONFIG_IDE made my machine boot, as it was using libata
    > >>>>>>>>> anyway.
    > >>>>>>>> Kamalesh/Pavel:
    > >>>>>>>>
    > >>>>>>>> Could you try latest git and see if the OOPS is still there?
    > >>>>>>>>
    > >>>>>>>> [ Yeah, I'm unable to reproduce it. :( ]
    > >>>>>>>>
    > >>>>>>>> Thanks,
    > >>>>>>>> Bart
    > >>>>>>> Hi Bart,
    > >>>>>>>
    > >>>>>>> The panic is reproducible with the 2.6.24-git16 kernel, the call trace is
    > >>>>>>> similar to the previous one
    > >>>>>> Thanks, I again reviewed ide-probe.c changes but nothing seems wrong...
    > >>>>>>
    > >>>>>> Could you please bisect it down to the guilty commit?
    > >>>>> Kamalesh, were you able to bisect this down? I just got hit by the
    > >>>>> same panic on a 4-way x86_64, with 2.6.24-git22.
    > >>>>>
    > >>>>> Thanks,
    > >>>>> Nish
    > >>>> Hi Nish,
    > >>>>
    > >>>> I tried bisecting and the guilty patch seems to be
    > >>>>
    > >>>> 36501650ec45b1db308c3b51886044863be2d762 is first bad commit
    > >>>> commit 36501650ec45b1db308c3b51886044863be2d762
    > >>>> Author: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
    > >>>> Date: Fri Feb 1 23:09:31 2008 +0100
    > >>>>
    > >>>> ide: keep pointer to struct device instead of struct pci_dev in ide_hwif_t
    > >>>>
    > >>>>
    > >>>> the gdb output, also points to the changes made by the guilty patch
    > >>>>
    > >>>> (gdb) p ide_device_add_all
    > >>>> $1 = {int (u8 *, const struct ide_port_info *)} 0xffffffff804176ac <ide_device_add_all>
    > >>>> (gdb) p/x 0xffffffff804176ac+0xb60
    > >>>> $2 = 0xffffffff8041820c
    > >>>> (gdb) l *0xffffffff8041820c
    > >>>> 0xffffffff8041820c is in ide_device_add_all (drivers/ide/ide-probe.c:1249).
    > >>>> 1244 goto out;
    > >>>> 1245 }
    > >>>> 1246
    > >>>> 1247 sg_init_table(hwif->sg_table, hwif->sg_max_nents);
    > >>>> 1248
    > >>>> 1249 if (init_irq(hwif) == 0)
    > >>>> 1250 goto done;
    > >>>> 1251
    > >>>> 1252 old_irq = hwif->irq;
    > >>>> 1253 /*
    > >>>> (gdb)
    > >>>>
    > >>>>
    > >>>> (gdb) p init_irq
    > >>>> $1 = {int (ide_hwif_t *)} 0xffffffff8041721f <init_irq>
    > >>>> (gdb) p/x 0xffffffff8041721f+0x1a4
    > >>>> $2 = 0xffffffff804173c3
    > >>>> (gdb) l *0xffffffff804173c3
    > >>>> 0xffffffff804173c3 is in init_irq (include/asm/pci.h:101).
    > >>>> 96 /* Returns the node based on pci bus */
    > >>>> 97 static inline int __pcibus_to_node(struct pci_bus *bus)
    > >>>> 98 {
    > >>>> 99 struct pci_sysdata *sd = bus->sysdata;
    > >>>> 100
    > >>>> 101 return sd->node;
    > >>>> 102 }
    > >>>> 103
    > >>>> 104 static inline cpumask_t __pcibus_to_cpumask(struct pci_bus *bus)
    > >>>> 105 {
    > >>>> (gdb)
    > >>> Thanks for the detailed analysis and sorry for the bug.
    > >>>
    > >>> I think that this may has been just fixed by Andi's recent hwif_to_node()
    > >>> fix (patch below, it is in Linus' tree already), could please verify this?
    > >>>
    > >>> commit 1f07e988290fc45932f5028c9e2a862c37a57336
    > >>> Author: Andi Kleen <andi@firstfloor.org>
    > >>> Date: Mon Feb 11 01:35:20 2008 +0100
    > >>>
    > >>> Prevent IDE boot ops on NUMA system
    > >>>
    > >>> Without this patch a Opteron test system here oopses at boot with
    > >>> current git.
    > >>>
    > >>> Calling to_pci_dev() on a NULL pointer gives a negative value so the
    > >>> following NULL pointer check never triggers and then an illegal address
    > >>> is referenced. Check the unadjusted original device pointer for NULL
    > >>> instead.
    > >>>
    > >>> Signed-off-by: Andi Kleen <ak@suse.de>
    > >>> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    > >>>
    > >>> diff --git a/include/linux/ide.h b/include/linux/ide.h
    > >>> index 23fad89..a3b69c1 100644
    > >>> --- a/include/linux/ide.h
    > >>> +++ b/include/linux/ide.h
    > >>> @@ -1295,7 +1295,7 @@ static inline void ide_dump_identify(u8 *id)
    > >>> static inline int hwif_to_node(ide_hwif_t *hwif)
    > >>> {
    > >>> struct pci_dev *dev = to_pci_dev(hwif->dev);
    > >>> - return dev ? pcibus_to_node(dev->bus) : -1;
    > >>> + return hwif->dev ? pcibus_to_node(dev->bus) : -1;
    > >>> }
    > >>>
    > >>> static inline ide_drive_t *ide_get_paired_drive(ide_drive_t *drive)
    > >> Hi Bart,
    > >> Thanks !! the patch solves the kernel panic but when after applying the patch,kernel is not
    > >> able to mount the filesystem and panics, am i not sure what is likely causing the panic.
    > >
    > > Is
    > >
    > > - the commit 36501650ec45b1db308c3b51886044863be2d762 with Andi's fix applied
    > >
    > > or
    > >
    > > - the commit f6fb786d6dcdd7d730e4fba620b071796f487e1b
    > > (the one before commit 36501650ec45b1db308c3b51886044863be2d762)
    > >
    > > working for you?
    >
    > No, the commit before the commit 36501650ec45b1db308c3b51886044863be2d762 did not either work, i
    > get the same kernel panic.
    >
    > >
    > >> Creating root device.
    > >> Mounting root filesystem.
    > >> mount: could not find filesystem
    > >> Kernel panic - not syncing: Attempted to kill init!
    > >
    > > Is IDE actually used for the boot device?
    > >
    > > [ Please send a dmesg output from the working system. ]

    Hmm, it is not (from dmesg):

    Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
    ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
    Probing IDE interface ide0...
    hda: HL-DT-STCD-RW/DVD DRIVE GCC-4244N, ATAPI CD/DVD-ROM drive
    Probing IDE interface ide1...
    ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
    hda: ATAPI 24X DVD-ROM CD-R/RW drive, 2048kB Cache
    Uniform CD-ROM driver Revision: 3.20

    [...]

    Adaptec aacraid driver 1.1-5[2449]-ms
    ACPI: PCI Interrupt 0000:01:02.0[A] -> GSI 25 (level, low) -> IRQ 25
    AAC0: kernel 5.2-0[11835] Jan 9 2007
    AAC0: monitor 5.2-0[11835]
    AAC0: bios 5.2-0[11835]
    AAC0: serial 1625D1
    AAC0: 64bit support enabled.
    AAC0: 64 Bit DAC enabled
    scsi0 : ServeRAID
    scsi 0:0:0:0: Direct-Access IBM x366 V1.0 PQ: 0 ANSI: 2
    scsi 0:1:0:0: Direct-Access IBM-ESXS ST973401SS B519 PQ: 0 ANSI: 5
    scsi 0:1:1:0: Direct-Access IBM-ESXS ST973401SS B519 PQ: 0 ANSI: 5
    scsi 0:1:2:0: Direct-Access IBM-ESXS ST973401SS B519 PQ: 0 ANSI: 5
    scsi 0:3:0:0: Enclosure IBM SAS SES-2 DEVICE 0.09 PQ: 0 ANSI: 5
    sd 0:0:0:0: [sda] 429459456 512-byte hardware sectors (219883 MB)
    sd 0:0:0:0: [sda] Write Protect is off
    sd 0:0:0:0: [sda] Mode Sense: 06 00 10 00
    sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and FUA
    sd 0:0:0:0: [sda] 429459456 512-byte hardware sectors (219883 MB)
    sd 0:0:0:0: [sda] Write Protect is off
    sd 0:0:0:0: [sda] Mode Sense: 06 00 10 00
    sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and FUA
    sda: sda1 sda2 sda3 sda4 < sda5 sda6 >
    sd 0:0:0:0: [sda] Attached SCSI removable disk
    sd 0:0:0:0: Attached scsi generic sg0 type 0
    scsi 0:1:0:0: Attached scsi generic sg1 type 0
    scsi 0:1:1:0: Attached scsi generic sg2 type 0
    scsi 0:1:2:0: Attached scsi generic sg3 type 0
    scsi 0:3:0:0: Attached scsi generic sg4 type 13

    [...]

    kjournald starting. Commit interval 5 seconds
    EXT3-fs: mounted filesystem with ordered data mode.

    [...]

    EXT3 FS on sda1, internal journal
    kjournald starting. Commit interval 5 seconds
    EXT3 FS on sda2, internal journal
    EXT3-fs: mounted filesystem with ordered data mode.

    I worry that another git-bisect session will be needed unless SCSI
    developers are already aware of the problem source.

    Thanks,
    Bart


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