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    SubjectRe: scsi0: Unexpected busfree while idle - Adaptec 29160N Ultra160 SCSI adapter
    On 09/07/07, Jesper Juhl <jesper.juhl@gmail.com> wrote:
    > I just experienced a long hang and a lot of unpleasant messages in dmesg
    > while building randconfig kernels in a loop.
    >

    It just happened again without me doing anything special, just normal
    desktop use, surfing the net, reading email etc. This time the kernel
    version was 2.6.22-g1db6178c

    This time the start of the messages look like this (slightly different
    from last time - quoted below):

    [ 8039.510026] scsi0: Unexpected busfree while idle
    [ 8039.510036] SEQADDR == 0x18
    [ 8069.492318] sr 0:0:4:0: Attempting to queue an ABORT message
    [ 8069.492324] CDB: 0x0 0x0 0x0 0x0 0x0 0x0
    [ 8069.492342] scsi0: At time of recovery, card was not paused
    [ 8069.492353] >>>>>>>>>>>>>>>>>> Dump Card State Begins <<<<<<<<<<<<<<<<<
    [ 8069.492357] scsi0: Dumping Card State while idle, at SEQADDR 0x18
    [ 8069.492362] Card was paused
    [ 8069.492371] ACCUM = 0xa, SINDEX = 0x48, DINDEX = 0xe4, ARG_2 = 0x2
    [ 8069.492378] HCNT = 0x0 SCBPTR = 0xb
    [ 8069.492384] SCSIPHASE[0x0] SCSISIGI[0x0] ERROR[0x0]
    [ 8069.492406] SCSIBUSL[0x0] LASTPHASE[0x1] SCSISEQ[0x1a]
    [ 8069.492426] SBLKCTL[0xa] SCSIRATE[0x0] SEQCTL[0x10]
    [ 8069.492447] SEQ_FLAGS[0xc0] SSTAT0[0x0] SSTAT1[0x0]
    [ 8069.492467] SSTAT2[0x0] SSTAT3[0x0] SIMODE0[0x8]
    [ 8069.492487] SIMODE1[0xa4] SXFRCTL0[0x80] DFCNTRL[0x0]
    [ 8069.492507] DFSTATUS[0x89]
    [ 8069.492515] STACK: 0x0 0x164 0x179 0x17
    [ 8069.492536] SCB count = 24
    [ 8069.492540] Kernel NEXTQSCB = 12
    [ 8069.492545] Card NEXTQSCB = 17
    [ 8069.492549] QINFIFO entries: 17 18
    [ 8069.492561] Waiting Queue entries: 11:10
    [ 8069.492573] Disconnected Queue entries:
    [ 8069.492581] QOUTFIFO entries:
    [ 8069.492587] Sequencer Free SCB List: 3 1 13 14 5 6 0 17 10 19 4 8 7
    2 16 20 18 12 15 9 21 22 23 24 25
    26 27 28 29 30 31
    [ 8069.492694] Sequencer SCB Info:
    [ 8069.492698] 0 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    [ 8069.492723] SCB_TAG[0xff]
    [ 8069.492729] 1 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    [ 8069.492753] SCB_TAG[0xff]
    [ 8069.492759] 2 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    [ 8069.492784] SCB_TAG[0xff]
    [ 8069.492791] 3 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    [ 8069.492816] SCB_TAG[0xff]
    [ 8069.492822] 4 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    [ 8069.492845] SCB_TAG[0xff]
    [ 8069.492851] 5 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    [ 8069.492875] SCB_TAG[0xff]
    [ 8069.492880] 6 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    [ 8069.492904] SCB_TAG[0xff]
    [ 8069.492910] 7 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    [ 8069.492934] SCB_TAG[0xff]
    [ 8069.492940] 8 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    [ 8069.492964] SCB_TAG[0xff]
    [ 8069.492969] 9 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    [ 8069.492994] SCB_TAG[0xff]
    [ 8069.493000] 10 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    [ 8069.493024] SCB_TAG[0xff]
    [ 8069.493030] 11 SCB_CONTROL[0x40] SCB_SCSIID[0x47] SCB_LUN[0x0]
    [ 8069.493054] SCB_TAG[0xa]
    [ 8069.493060] 12 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    [ 8069.493085] SCB_TAG[0xff]
    [ 8069.493090] 13 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    [ 8069.493114] SCB_TAG[0xff]
    [ 8069.493120] 14 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    [ 8069.493145] SCB_TAG[0xff]
    [ 8069.493150] 15 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    [ 8069.493175] SCB_TAG[0xff]
    [ 8069.493181] 16 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    [ 8069.493206] SCB_TAG[0xff]
    [ 8069.493212] 17 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    [ 8069.493235] SCB_TAG[0xff]
    [ 8069.493241] 18 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    [ 8069.493266] SCB_TAG[0xff]
    [ 8069.493272] 19 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    [ 8069.493296] SCB_TAG[0xff]
    [ 8069.493302] 20 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    [ 8069.493316] SCB_TAG[0xff]
    [ 8069.493323] 21 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff]
    [ 8069.493348] SCB_TAG[0xff]
    [ 8069.493354] 22 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff]
    [ 8069.493378] SCB_TAG[0xff]
    [ 8069.493383] 23 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff]
    [ 8069.493407] SCB_TAG[0xff]
    [ 8069.493413] 24 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff]
    [ 8069.493437] SCB_TAG[0xff]
    [ 8069.493443] 25 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff]
    [ 8069.493469] SCB_TAG[0xff]
    [ 8069.493475] 26 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff]
    [ 8069.493501] SCB_TAG[0xff]
    [ 8069.493507] 27 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff]
    [ 8069.493531] SCB_TAG[0xff]
    [ 8069.493537] 28 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff]
    [ 8069.493562] SCB_TAG[0xff]
    [ 8069.493568] 29 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff]
    [ 8069.493593] SCB_TAG[0xff]
    [ 8069.493599] 30 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff]
    [ 8069.493625] SCB_TAG[0xff]
    [ 8069.493631] 31 SCB_CONTROL[0x0] SCB_SCSIID[0xff] SCB_LUN[0xff]
    [ 8069.493656] SCB_TAG[0xff]
    [ 8069.493664] Pending list:
    [ 8069.493669] 18 SCB_CONTROL[0x40] SCB_SCSIID[0x57] SCB_LUN[0x0]
    [ 8069.493687] 17 SCB_CONTROL[0x60] SCB_SCSIID[0x67] SCB_LUN[0x0]
    [ 8069.493706] 10 SCB_CONTROL[0x40] SCB_SCSIID[0x47] SCB_LUN[0x0]
    [ 8069.493727] Kernel Free SCB list: 23 22 3 13 16 1 11 14 2 9 8 5 21
    15 19 0 4 7 6 20
    [ 8069.493780] Untagged Q(4): 10
    [ 8069.493788] Untagged Q(5): 18
    [ 8069.493796]
    [ 8069.493797] <<<<<<<<<<<<<<<<< Dump Card State Ends >>>>>>>>>>>>>>>>>>
    [ 8069.493819] scsi0:0:4:0: Cmd aborted from QINFIFO
    [ 8069.493892] aic7xxx_abort returns 0x2002
    [ 8079.485432] sr 0:0:4:0: Attempting to queue an ABORT message
    [ 8079.485438] CDB: 0x0 0x0 0x0 0x0 0x0 0x0
    [ 8079.485455] scsi0: At time of recovery, card was not paused
    ...

    The complete dmesg log is attached in gzip'ed form.



    > Here's the beginning of the messages (full dmesg output attached)
    >
    > ...
    > [ 9997.057000] scsi0: Unexpected busfree while idle
    > [ 9997.057000] SEQADDR == 0x18
    > [10030.588000] sr 0:0:5:0: Attempting to queue an ABORT message
    > [10030.588000] CDB: 0x0 0x0 0x0 0x0 0x0 0x0
    > [10030.588000] scsi0: At time of recovery, card was not paused
    > [10030.588000] >>>>>>>>>>>>>>>>>> Dump Card State Begins <<<<<<<<<<<<<<<<<
    > [10030.588000] scsi0: Dumping Card State while idle, at SEQADDR 0x18
    > [10030.588000] Card was paused
    > [10030.588000] ACCUM = 0x4, SINDEX = 0x48, DINDEX = 0xe4, ARG_2 = 0x1
    > [10030.588000] HCNT = 0x0 SCBPTR = 0xf
    > [10030.588000] SCSIPHASE[0x0] SCSISIGI[0x0] ERROR[0x0]
    > [10030.588000] SCSIBUSL[0x0] LASTPHASE[0x1] SCSISEQ[0x1a]
    > [10030.588000] SBLKCTL[0xa] SCSIRATE[0x0] SEQCTL[0x10]
    > [10030.588000] SEQ_FLAGS[0xc0] SSTAT0[0x0] SSTAT1[0x0]
    > [10030.588000] SSTAT2[0x0] SSTAT3[0x0] SIMODE0[0x8]
    > [10030.588000] SIMODE1[0xa4] SXFRCTL0[0x80] DFCNTRL[0x0]
    > [10030.588000] DFSTATUS[0x89]
    > [10030.588000] STACK: 0x0 0x164 0x179 0x17
    > [10030.588000] SCB count = 40
    > [10030.588000] Kernel NEXTQSCB = 31
    > [10030.588000] Card NEXTQSCB = 0
    > [10030.588000] QINFIFO entries: 0 9 28 30 13 19 2 21 25 20 16 17 18 32 34 11 22 7
    > [10030.588000] Waiting Queue entries: 15:4
    > [10030.588000] Disconnected Queue entries:
    > [10030.588000] QOUTFIFO entries:
    > [10030.588000] Sequencer Free SCB List: 3 30 19 23 11 16 25 17 18 10 4 6 26 24 7 28 20 27 12 0 2 8 21 14 22 5 1 31 13 29 9
    > [10030.588000] Sequencer SCB Info:
    > [10030.588000] 0 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 1 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 2 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 3 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 4 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 5 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 6 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 7 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 8 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 9 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 10 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 11 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 12 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 13 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 14 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 15 SCB_CONTROL[0x40] SCB_SCSIID[0x57] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0x4]
    > [10030.588000] 16 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 17 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 18 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 19 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 20 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 21 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 22 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 23 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 24 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 25 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 26 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 27 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 28 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 29 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 30 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] 31 SCB_CONTROL[0xe0] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] SCB_TAG[0xff]
    > [10030.588000] Pending list:
    > [10030.588000] 7 SCB_CONTROL[0x60] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] 22 SCB_CONTROL[0x60] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] 11 SCB_CONTROL[0x60] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] 34 SCB_CONTROL[0x60] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] 32 SCB_CONTROL[0x60] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] 18 SCB_CONTROL[0x60] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] 17 SCB_CONTROL[0x60] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] 16 SCB_CONTROL[0x60] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] 20 SCB_CONTROL[0x60] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] 25 SCB_CONTROL[0x60] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] 21 SCB_CONTROL[0x60] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] 2 SCB_CONTROL[0x60] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] 19 SCB_CONTROL[0x60] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] 13 SCB_CONTROL[0x60] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] 30 SCB_CONTROL[0x60] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] 28 SCB_CONTROL[0x60] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] 9 SCB_CONTROL[0x60] SCB_SCSIID[0x67] SCB_LUN[0x0]
    > [10030.588000] 0 SCB_CONTROL[0x40] SCB_SCSIID[0x47] SCB_LUN[0x0]
    > [10030.588000] 4 SCB_CONTROL[0x40] SCB_SCSIID[0x57] SCB_LUN[0x0]
    > [10030.588000] Kernel Free SCB list: 24 10 23 5 3 14 33 1 26 15 35 6 29 12 39 27 8 38 37 36
    > [10030.588000] Untagged Q(4): 0
    > [10030.588000] Untagged Q(5): 4
    > [10030.588000]
    > [10030.588000] <<<<<<<<<<<<<<<<< Dump Card State Ends >>>>>>>>>>>>>>>>>>
    > [10030.588000] scsi0:0:5:0: Cmd aborted from QINFIFO
    > [10030.588000] aic7xxx_abort returns 0x2002
    > [10040.588000] sr 0:0:5:0: Attempting to queue an ABORT message
    > [10040.588000] CDB: 0x0 0x0 0x0 0x0 0x0 0x0
    > [10040.588000] scsi0: At time of recovery, card was not paused
    > ...
    > (see attached file for remaining (long) output)
    >
    >
    > Here's output from scripts/ver_linux :
    >
    > juhl@dragon:~/kernel/linux-2.6$ scripts/ver_linux
    > If some fields are empty or look unusual you may have an old version.
    > Compare to the current minimal requirements in Documentation/Changes.
    >
    > Linux dragon 2.6.22-rc7-g4e99325b #1 SMP PREEMPT Sun Jul 8 21:24:48 CEST 2007 i686 AMD Athlon(tm) 64 X2 Dual Core Processor 4400+ AuthenticAMD GNU/Linux
    >
    > Gnu C 4.1.2
    > Gnu make 3.81
    > binutils Binutils
    > util-linux 2.12r
    > mount 2.12r
    > module-init-tools 3.2.2
    > e2fsprogs 1.39
    > jfsutils 1.1.11
    > reiserfsprogs 3.6.19
    > xfsprogs 2.8.16
    > pcmciautils 014
    > quota-tools 3.13.
    > PPP 2.4.4
    > Linux C Library > libc.2.5
    > Dynamic linker (ldd) 2.5
    > Linux C++ Library 6.0.8
    > Procps 3.2.7
    > Net-tools 1.60
    > Kbd 1.12
    > oprofile 0.9.2
    > Sh-utils 6.9
    > udev 111
    > Modules Loaded dm_mod snd_seq_oss snd_seq_midi_event snd_seq snd_pcm_oss snd_mixer_oss agpgart lp snd_emu10k1 snd_rawmidi firmware_class snd_ac97_codec ac97_bus snd_pcm snd_seq_device snd_timer snd_page_alloc snd_util_mem via_rhine snd_hwdep ehci_hcd sg evdev k8temp
    >

    except for the slightly newer kernel, the above userspace info is still valid.

    >
    > and here's /proc/scsi/scsi :
    >
    > juhl@dragon:~/kernel/linux-2.6$ cat /proc/scsi/scsi
    > Attached devices:
    > Host: scsi0 Channel: 00 Id: 04 Lun: 00
    > Vendor: PIONEER Model: DVD-ROM DVD-305 Rev: 1.03
    > Type: CD-ROM ANSI SCSI revision: 02
    > Host: scsi0 Channel: 00 Id: 05 Lun: 00
    > Vendor: PLEXTOR Model: CD-R PX-W1210S Rev: 1.01
    > Type: CD-ROM ANSI SCSI revision: 02
    > Host: scsi0 Channel: 00 Id: 06 Lun: 00
    > Vendor: IBM Model: DDYS-T36950N Rev: S96H
    > Type: Direct-Access ANSI SCSI revision: 03
    >

    This scsi info is still valid.

    >
    > uname -a is :
    >
    > juhl@dragon:~/kernel/linux-2.6$ uname -a
    > Linux dragon 2.6.22-rc7-g4e99325b #1 SMP PREEMPT Sun Jul 8 21:24:48 CEST 2007 i686 AMD Athlon(tm) 64 X2 Dual Core Processor 4400+ AuthenticAMD GNU/Linux
    >

    This is now :

    Linux dragon 2.6.22-g1db6178c #1 SMP PREEMPT Sat Jul 14 04:10:50 CEST
    2007 i686 AMD Athlon(tm) 64 X2 Dual Core Processor 4400+ AuthenticAMD
    GNU/Linux

    >
    > I have a feeling this may be related to my old problem with machine hangs when
    > building kernels in a loop that I reported back in 2.6.17-2.6.19 times :
    > http://www.webservertalk.com/archive242-2006-11-1692290.html
    >
    > The problem mentioned in the thread above I can still reliably reproduce. All
    > I need to do is use my script to build kernels in a loop and I'll usually get a
    > hang within 10 kernels (with recent versions) or 100 kernels (with pre-2.6.20
    > kernels).
    > One difference between the hangs I've seen previously and this one is that
    > previously I've always use "nice make -j 3" when building the kernels, but
    > this time I edited my script to use just "nice make", thus only using a single
    > core. I suspect this is why my box stayed resonably alive this time - enough
    > for me to be able to capture some dmesg output - instead of just hanging
    > completely like it usually does.
    >
    > If any further information is required, just let me know and I'll be happy to
    > provide it.
    > Any patches you want me to test, just send them my way :-)
    >
    > Getting this finally resolved would be *very* nice :-)
    >
    >
    > (please note that I'm not subscribed to linux-scsi, so please keep me on Cc)
    >

    It seems that since 2.6.22-rc<mid/late-ish> this is getting more
    frequent, but that's just a subjective feeling, quite vague...

    --
    Jesper Juhl <jesper.juhl@gmail.com>
    Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html
    Plain text mails only, please http://www.expita.com/nomime.html
    [unhandled content-type:application/x-gzip]
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