Messages in this thread | | | Subject | 2.6.9-rc4-mm1-VP-T7 - horrid death in vortex_init at boot | From | Valdis.Kletnieks@vt ... | Date | Tue, 12 Oct 2004 14:27:10 -0400 |
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2.6.9-rc4-mm1-VP-T7 plus Ingo's patch to profile.c and 3c59x.c to use raw_rwlock_t and raw_spinlock_t rather than the non-raw variant. It croaked when it found the onboard ethernet controller on a Dell Latitude C840 laptop:
lspci says it's a: 02:00.0 Ethernet controller: 3Com Corporation 3c905C-TX/TX-M [Tornado] (rev 78)
Got the following (admittedly truncated - was handwritten and CTS is a pain, literally) at very early boot:
3c59x: Donald Becker and others. ... 0000:02:00.0: 3Com PCI 3c905C Tornado at 0xec80. Vers LK1.1.19 kernel BUG at net/core/net-sysfs.c:384 process swapper ... registers skipped call trace: show_stack show_registers die do_invalid_op error_code class_hotplug kobject_hotplug kobject_add class_device_add netdev_register_sysfs netdev_run_todo register_netdev vortex_probe1 vortex_init_one pci_device_probe_static __pci_device_probe pci_device_probe bus_match driver_attach bus_add_driver driver_register pci_register_driver vortex_init do_initcalls
The offending code:
static void netdev_release(struct class_device *cd) { struct net_device *dev = container_of(cd, struct net_device, class_dev);
BUG_ON(dev->reg_state != NETREG_RELEASED);
kfree((char *)dev - dev->padded); }
I'm guessing something broken in the bk-driver-core patch in -rc4-mm1, as that completely overhauled this stuff.
This ring any bells? If need be, I'll scare up a serial cable and get a more complete trace - somehow, I don't think netconsole will help here.. ;)
(As an aside, kobject_hotplug calls call_usermodehelper() - which seems like a Bad Idea if we haven't gotten userspace up and running yet? [unhandled content-type:application/pgp-signature] | |