On 09/18/2012 01:48 PM, Stanislaw Gruszka wrote:
Hi
I have following crash when doing rmmod bcma (or
modprobe -r brcmsmac). It happen on 3.5 and latest
wireless-testing tree.
<4>Pid: 28372, comm: modprobe Not tainted 2.6.32.sgruszka_03 #7 Hewlett-Packard HP xw8600 Workstation/0A98h
<4>RIP: 0010:[<ffffffffa02f03eb>] [<ffffffffa02f03eb>] bcma_bus_unregister+0x3b/0x60 [bcma]
<4>RSP: 0018:ffff8800181a9d78 EFLAGS: 00010296
<4>RAX: 6b6b6b6b6b6b6b6b RBX: 6b6b6b6b6b6b678b RCX: 0000000000000001
<4>RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000282
<4>RBP: ffff8800181a9d88 R08: 0000000000000000 R09: 0000000000000000
<4>R10: 0000000000000000 R11: 0000000000000001 R12: ffff880123af28b8
<4>R13: ffff880123af2888 R14: ffffffffa02f5588 R15: 000000000040f5b0
<4>FS: 00007f4db9f33700(0000) GS:ffff88002c000000(0000) knlGS:0000000000000000
<4>CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
<4>CR2: 00007f4db9f4a000 CR3: 0000000129a46000 CR4: 00000000000406f0
<4>DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
<4>DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
<4>Process modprobe (pid: 28372, threadinfo ffff8800181a8000, task ffff880106f4d780)
<4>Stack:
<4> ffff88012c8dd000 ffff88012c8dd090 ffff8800181a9db8 ffffffffa02f3c4a
<4><d> ffffffffa02f5520 ffff88012c8dd090 ffff88012c8dd000 ffff88012c8dd0f0
<4><d> ffff8800181a9dd8 ffffffff812bdf57 ffff88012c8dd090 ffffffffa02f5520
<4>Call Trace:
<4> [<ffffffffa02f3c4a>] bcma_host_pci_remove+0x2f/0x65 [bcma]
<4> [<ffffffff812bdf57>] pci_device_remove+0x37/0x70
<4> [<ffffffff8137d7b5>] __device_release_driver+0x75/0xe0
<4> [<ffffffff8137d8f0>] driver_detach+0xd0/0xe0
<4> [<ffffffff8137c598>] bus_remove_driver+0x98/0x110
<4> [<ffffffff8137e0f2>] driver_unregister+0x62/0xa0
<4> [<ffffffff812be274>] pci_unregister_driver+0x44/0xa0
<4> [<ffffffffa02f3631>] bcma_host_pci_exit+0x15/0x17 [bcma]
<4> [<ffffffffa02f360e>] bcma_modexit+0xe/0x1c [bcma]
<4> [<ffffffff810bf826>] sys_delete_module+0x196/0x260
<4> [<ffffffff8100b0ea>] ? sysret_check+0x2e/0x69
<4> [<ffffffff815382b2>] ? trace_hardirqs_on_thunk+0x3a/0x3f
<4> [<ffffffff8100b0b2>] system_call_fastpath+0x16/0x1b
<4>Code: 4c 8d 67 30 49 39 c4 48 8d 98 20 fc ff ff 75 1b eb 2e 66 0f 1f 44 00 00 48 8b 83 e0 03 00 00 49 39 c4 48 8d 98 20 fc ff ff 74 15<80> bb b4 03 00 00 00 74 e4 48 8d 7b 10 e8 43 9f 08 e1 eb d9 90
<1>RIP [<ffffffffa02f03eb>] bcma_bus_unregister+0x3b/0x60 [bcma]
<4> RSP<ffff8800181a9d78>
On source file crash happen at line 137:
(gdb) l *(bcma_bus_unregister+0x3b)
0x41b is in bcma_bus_unregister (drivers/bcma/main.c:137).
132 static void bcma_unregister_cores(struct bcma_bus *bus)
133 {
134 struct bcma_device *core;
135
136 list_for_each_entry(core,&bus->cores, list) {
137 if (core->dev_registered)
138 device_unregister(&core->dev);
139 }
140 }
I'm attaching my .config file.
Thanks
Stanislaw
Hi,
I get the same thing on v3.6-rc5.
It happens even if there wasn't any driver loaded that uses bcma.
I was able to reproduce it only on x64
Kind regards
Piotr
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