From: "Simon Raven / Eric S. Côté" <simon@nuit.ca>
To: linux-kernel@vger.kernel.org
Subject: useful info out of tulip weirdness
Date: Tue, 11 Jan 2005 03:42:29 -0500 [thread overview]
Message-ID: <20050111084222.GA15167@smtp.nuit.ca> (raw)
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earlier today i tried modprobing tulip driver:
modprobe tulip
Oops: kernel access of bad area, sig: 11 [#1]
NIP: E1D843FC LR: E1D84358 SP: DEBC9D80 REGS: debc9cd0 TRAP: 0300 Not tainted
MSR: 00009032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11
DAR: 81000030, DSISR: 40000000
TASK = df766770[4988] 'modprobe' THREAD: debc8000
Last syscall: 128
GPR00: E1D85D90 DEBC9D80 DF766770 DD7AD000 00000000 00000000 DD7AD9FC E1D8D448
GPR08: DFB9B860 81000030 4B87AD6E E1D8D498 93003533 1001E284 100013A4 DEBC9D88
GPR16: 00000000 E1D896FC 00000019 C0A74848 DFB9B230 E1D90000 E1D90000 00000004
GPR24: DFB9B220 93003535 81000000 C0A74800 DFB9B000 00000050 81000000 00000000
NIP [e1d843fc] tulip_init_one+0x2e8/0xd28 [tulip]
LR [e1d84358] tulip_init_one+0x244/0xd28 [tulip]
Call trace:
[c0182b28] pci_device_probe_static+0x6c/0x88
[c0182b94] __pci_device_probe+0x50/0x70
[c0182be4] pci_device_probe+0x30/0x60
[c01bfdf8] driver_probe_device+0x4c/0xa0
[c01bff90] driver_attach+0x88/0xc8
[c01c057c] bus_add_driver+0xa0/0x10c
[c01c0c08] driver_register+0x30/0x40
[c0182f0c] pci_register_driver+0x70/0xa0
[e1d6204c] tulip_init+0x4c/0xf0 [tulip]
[c003686c] sys_init_module+0x220/0x320
[c0003ec0] ret_from_syscall+0x0/0x44
zsh: 4988 segmentation fault modprobe tulip
the machine soon after had a hard lock. also hotplug "thought" tulip
was loaded. which it kinda was, totally inoperable. by this i mean i
couldn't bind an eth2 to it even if i wanted to do that.
arch: ppc32
cpu: PPC 750/300 MHz
lspci:
0000:00:0b.0 Host bridge: Apple Computer Inc. Bandit PowerPC host bridge (rev 03)
0000:00:0d.0 VGA compatible controller: ATI Technologies Inc 3D Rage LT Pro (rev dc)
0000:00:0e.0 PCI bridge: Digital Equipment Corporation DECchip 21152 (rev 03)
0000:00:0f.0 Ethernet controller: Lite-On Communications Inc LNE100TX (rev 20)
0000:00:10.0 ff00: Apple Computer Inc. Grand Central I/O (rev 02)
0000:01:00.0 Memory controller: Adaptec AIC-7815 RAID+Memory Controller IC (rev 02)
0000:01:04.0 SCSI storage controller: Adaptec 78902
0001:02:0b.0 Host bridge: Apple Computer Inc. Bandit PowerPC host bridge (rev 03)
0001:02:0d.0 Ethernet controller: 3Com Corporation 3cSOHO100-TX Hurricane (rev 30)
0001:02:0e.0 SCSI storage controller: Adaptec AHA-2940U/UW/D / AIC-7881U
/proc/cpuinfo:
processor : 0
cpu : 740/750
temperature : 32 C (uncalibrated)
clock : 195MHz
revision : 2.2 (pvr 0008 0202)
bogomips : 602.11
machine : Power Macintosh
motherboard : AAPL,9500 MacRISC
detected as : 16 (PowerMac 9500/9600)
pmac flags : 00000000
memory : 512MB
pmac-generation : OldWorld
please CC: me
--
"I believe that part of what propels science is the thirst for wonder. It's a
very powerful emotion. All children feel it. In a first grade classroom
everybody feels it; in a twelfth grade classroom almost nobody feels it, or
at least acknowledges it. Something happens between first and twelfth grade,
and it's not just puberty. Not only do the schools and the media not teach
much skepticism, there is also little encouragement of this stirring sense
of wonder. Science and pseudoscience both arouse that feeling. Poor
popularizations of science establish an ecological niche for pseudoscience."
-- Carl Sagan, The Burden Of Skepticism,
The Skeptical Inquirer, Vol. 12, Fall 87
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