[Bug 15815] New: pata_legacy causes machine check

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=15815

           Summary: pata_legacy causes machine check
           Product: IO/Storage
           Version: 2.5
    Kernel Version: 2.6.34-rc4
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: IDE
        AssignedTo: io_ide@kernel-bugs.osdl.org
        ReportedBy: joerg@alea.gnuu.de
        Regression: No


Hi,

upon load of the module pata_legacy, the kernel prints out these
messages:

[  292.354954] Machine check in kernel mode.
[  292.362298] Caused by (from SRR1=141030): Transfer error ack signal
[  292.369603] Machine check in kernel mode.
[  292.376759] Caused by (from SRR1=141030): Transfer error ack signal
[  292.384021] Machine check in kernel mode.
[  292.391157] Caused by (from SRR1=141030): Transfer error ack signal
[  292.398301] Machine check in kernel mode.
[  292.405328] Caused by (from SRR1=141030): Transfer error ack signal
[  292.412479] Machine check in kernel mode.
[  292.419481] Caused by (from SRR1=141030): Transfer error ack signal
[  292.426554] Machine check in kernel mode.
[  292.433432] Caused by (from SRR1=141030): Transfer error ack signal
[  292.440304] Machine check in kernel mode.
[  292.446972] Caused by (from SRR1=141030): Transfer error ack signal
[  292.453776] Machine check in kernel mode.
[  292.460357] Caused by (from SRR1=141030): Transfer error ack signal
[  292.466907] Machine check in kernel mode.
[  292.473329] Caused by (from SRR1=141030): Transfer error ack signal
[  292.479881] Machine check in kernel mode.
[  292.486311] Caused by (from SRR1=141030): Transfer error ack signal
[  292.492893] Machine check in kernel mode.
[  292.499426] Caused by (from SRR1=141030): Transfer error ack signal
[  292.506763] Machine check in kernel mode.
[  292.513518] Caused by (from SRR1=141030): Transfer error ack signal
[  292.520355] Oops: Machine check, sig: 7 [#1]
[  292.527133] PowerMac
[  292.533814] last sysfs file: /sys/module/libata/initstate
[  292.540592] Modules linked in: pata_legacy(+) ext2 sd_mod firewire_ohci
libata firewire_core crc_itu_t [last unloaded: pata_macio]
[  292.554912] NIP: c001610c LR: ea0eae88 CTR: c0016104
[  292.562118] REGS: e6dc3d60 TRAP: 0200   Not tainted  (2.6.34-rc4-test-2)
[  292.569473] MSR: 00141030 <ME,IR,DR>  CR: 24022488  XER: 20000000
[  292.577030] TASK = e6cc6ed0[525] 'modprobe' THREAD: e6dc2000
[  292.577219] GPR00: ea0eb4ec e6dc3e10 e6cc6ed0 000000ac fce793f6 e6d78000
e6c8ac14 00000001 
[  292.585036] GPR08: 00000000 ea4aa9c4 ea4aaaa8 c0016104 84022488 1002582c
ea4aa9c4 00810001 
[  292.592931] GPR16: 00810001 c049785c 00000001 000003f6 00000001 ea4aa6ae
ea4aa810 00000000 
[  292.600904] GPR24: 000001f0 ea4aa810 e6d78000 e6c8ac14 00000000 00000000
00000001 e6d78000 
[  292.616742] NIP [c001610c] ioread8+0x8/0x18
[  292.624785] LR [ea0eae88] ata_sff_check_status+0x14/0x28 [libata]
[  292.632830] Call Trace:
[  292.640880] [e6dc3e10] [ea4aa6ae] legacy_base_port_ops+0x1ea/0xfffff754
[pata_legacy] (unreliable)
[  292.649324] [e6dc3e20] [ea0eb4ec] ata_sff_freeze+0x4c/0x74 [libata]
[  292.657787] [e6dc3e30] [ea0e575c] __ata_port_freeze+0x3c/0x5c [libata]
[  292.666279] [e6dc3e40] [ea0e57ac] ata_eh_freeze_port+0x30/0x58 [libata]
[  292.674799] [e6dc3e50] [ea0db1e0] ata_host_start+0x26c/0x300 [libata]
[  292.683299] [e6dc3e70] [ea0db2b0] ata_host_activate+0x3c/0x144 [libata]
[  292.691773] [e6dc3e90] [ea4afdb0] legacy_init+0xdb0/0x1008 [pata_legacy]
[  292.700254] [e6dc3f00] [c0003eec] do_one_initcall+0x70/0x20c
[  292.708741] [e6dc3f20] [c0062c0c] sys_init_module+0xf4/0x248
[  292.717165] [e6dc3f40] [c0012e2c] ret_from_syscall+0x0/0x38
[  292.725520] --- Exception: c01 at 0xff5e0c4
[  292.725523]     LR = 0x100057b0
[  292.741928] Instruction dump:
[  292.749996] 7fe3fb78 83410018 7c0803a6 8361001c 83810020 83a10024 83c10028
83e1002c 
[  292.758398] 38210030 4e800020 7c0004ac 88630000 <0c030000> 4c00012c 5463063e
4e800020 
[  292.767014] ---[ end trace 529ce4fa7f676244 ]---

% cat /proc/cpuinfo
processor    : 0
cpu        : 7455, altivec supported
clock        : 606.000000MHz
revision    : 3.3 (pvr 8001 0303)
bogomips    : 36.86
timebase    : 18432000
platform    : PowerMac
model        : PowerBook6,3
machine        : PowerBook6,3
motherboard    : PowerBook6,3 MacRISC3 Power Macintosh
detected as    : 287 (iBook G4)
pmac flags    : 0000001b
L2 cache    : 256K unified
pmac-generation    : NewWorld
Memory        : 640 MB

% lspci
0000:00:0b.0 Host bridge: Apple Computer Inc. UniNorth 2 AGP
0000:00:10.0 VGA compatible controller: ATI Technologies Inc M9+ 5C63 [Radeon
Mobility 9200 (AGP)] (rev 01)
0001:10:0b.0 Host bridge: Apple Computer Inc. UniNorth 2 PCI
0001:10:12.0 Network controller: Broadcom Corporation BCM4306 802.11b/g
Wireless LAN Controller (rev 03)
0001:10:17.0 Class ff00: Apple Computer Inc. KeyLargo/Intrepid Mac I/O
0001:10:18.0 USB Controller: Apple Computer Inc. KeyLargo/Intrepid USB
0001:10:19.0 USB Controller: Apple Computer Inc. KeyLargo/Intrepid USB
0001:10:1a.0 USB Controller: Apple Computer Inc. KeyLargo/Intrepid USB
0001:10:1b.0 USB Controller: NEC Corporation USB (rev 43)
0001:10:1b.1 USB Controller: NEC Corporation USB (rev 43)
0001:10:1b.2 USB Controller: NEC Corporation USB 2.0 (rev 04)
0002:20:0b.0 Host bridge: Apple Computer Inc. UniNorth 2 Internal PCI
0002:20:0d.0 Class ff00: Apple Computer Inc. UniNorth/Intrepid ATA/100
0002:20:0e.0 FireWire (IEEE 1394): Apple Computer Inc. UniNorth 2 FireWire (rev
81)
0002:20:0f.0 Ethernet controller: Apple Computer Inc. UniNorth 2 GMAC (Sun GEM)
(rev 80)

Bye, Jörg

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