Hi, I'm getting reproductible oops when removing rt2500pci module (which uses devicescape ieee802.11 stack):
# modprobe rt2500pci Loading module: rt2500pci - CVS (N/A) by http://rt2x00.serialmonkey.com. ACPI: PCI Interrupt 0000:03:00.0[A] -> GSI 21 (level, low) -> IRQ 18 wmaster0: Failed to select rate control algorithm wmaster0: Failed to initialize rate control algorithm # lsmod Module Size Used by rt2500pci 29316 0 80211 137096 1 rt2500pci ipv6 206752 12 Note that rate_control isn't loaded. # rmmod rt2500pci Unloading module: rt2500pci - CVS (N/A) by http://rt2x00.serialmonkey.com. ------------[ cut here ]------------ kernel BUG at :46863! invalid opcode: 0000 [#1] SMP Modules linked in: rt2500pci 80211 ipv6 CPU: 1 EIP: 0060:[netdev_release+15/30] Not tainted VLI EFLAGS: 00010297 (2.6.17-riddly7.0 #1) EIP is at netdev_release+0xf/0x1e eax: d600c2e8 ebx: d600c2e8 ecx: c01ffb73 edx: d600c000 esi: c030b5c0 edi: d600c2f0 ebp: c030b5dc esp: d4e37ea8 ds: 007b es: 007b ss: 0068 Process rmmod (pid: 2306, threadinfo=d4e37000 task=c14f95b0) Stack: c01ffb3b d600c2f0 c03031f0 c0303220 c01b3139 d600c308 c01b3159 d600c000 c149f048 c01b377e d600c58c c01b3159 c01b377e d600c574 d600c400 c01b30de d600c2f0 e08e3f4f d600c400 d600c000 e08e3090 d67f9000 d67f989c e08d9e29 Call Trace: <c01ffb3b> class_dev_release+0x2f/0x67 <c01b3139> kobject_cleanup+0x40/0x60 <c01b3159> kobject_release+0x0/0x8 <c01b377e> kref_put+0x63/0x6d <c01b3159> kobject_release+0x0/0x8 <c01b377e> kref_put+0x63/0x6d <c01b30de> kobject_unregister+0x14/0x1c <e08e3f4f> ieee80211_sysfs_remove_netdevice+0x17/0x2e [80211] <e08e3090> __ieee80211_if_del+0x2c/0x35 [80211] <e08d9e29> ieee80211_unregister_hw+0xa3/0x147 [80211] <e0875330> rt2500pci_remove+0x32/0x55 [rt2500pci] <c01bcfbf> pci_device_remove+0x16/0x28 <c01ff4ad> __device_release_driver+0x5a/0x72 <c01ff549> driver_detach+0x5e/0x8b <c01fef49> bus_remove_driver+0x27/0x41 <c01ff801> driver_unregister+0xb/0x13 <c01bd13b> pci_unregister_driver+0xb/0x13 <c012b11c> sys_delete_module+0x10d/0x132 <c013cef5> do_munmap+0xda/0xe7 <c010254f> sysenter_past_esp+0x54/0x75 Code: 01 00 00 00 39 f8 7c 07 b8 f4 ff ff ff eb 09 c7 46 04 00 00 00 00 31 c0 5b 5e 5f c3 8d 90 18 fd ff ff 83 ba 94 02 00 00 04 74 02 <0f> 0b 0f b7 42 64 29 c2 89 d0 e9 c1 4a ef ff 05 e8 02 00 00 e9 EIP: [netdev_release+15/30] netdev_release+0xf/0x1e SS:ESP 0068:d4e37ea8 Loading rate_control before rt2500 pci "fixes" the problem. It isn't real fix but just hack -- driver uses rate_control module (indirectly via dscape) but I can unload it (rate_control) while it's running. I'm _guessing_ that rate_control needs its own set of kobjects and do some kobject_put/kobject_get in appropriate places... thanks -- This signature intentionally says nothing. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
