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Message-ID: <55427.212.166.5.178.1165835168.squirrel@trinityhome.org> Date: Mon, 11 Dec 2006 12:06:08 +0100 (CET) From: "Tom Kerremans" <harakiri@...nityhome.org> To: linux-kernel@...r.kernel.org Subject: Segmentation fault on modprobe depca I 'm the maintainter of Trinity Rescue Kit (http://trinityhome.org/trk) , a live rescue distribution that tries (amongst many other features) to be as generic as possible in terms of hardware detection. Therefore I include all network and disk controller drivers in the kernel or as module. I recently tried kernel 2.6.19 and stumbled upon the fact that the module DEPCA seems to be broken. When I compile it in the kernel, the kernel crashes at boot time. Compiled as module it creates a segmentation fault on modprobe. I 've tested compilation on two different systems: first is my TRK workbench, which is a Mandriva 2005 with gcc 3.4.3-7mdk and module-init-tools 3.0 (later upgraded to 3.2.2, recompiled kernel, but same result). The other system I compiled and tried it on is an out-of-the-box Mandriva 2007, which is quite new and has more recent compilers and libraries. The result was the same. When I do a "modprobe depca", even though there is no hardware that could use this module (it 's for old DEC nics..), I get the following output: [root@...inux ~]# modprobe depca Segmentation fault [root@...inux ~]# Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: ------------[ cut here ]------------ Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: Kernel BUG at [verbose debug info unavailable] Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: invalid opcode: 0000 [#1] Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: CPU: 0 Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: EIP: 0060:[<c014b738>] Not tainted VLI Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: EFLAGS: 00010006 (2.6.19 #2) Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: EIP is at kfree+0x32/0x59 Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: eax: ef632674 ebx: f64f7800 ecx: f64f7870 edx: c1800000 Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: esi: 00000206 edi: 00000300 ebp: ea4a5e1c esp: ea4a5e10 Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: ds: 007b es: 007b ss: 0068 Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: Process modprobe (pid: 26866, ti=ea4a4000 task=c1a74a70 task.ti=ea4a4000) Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: Stack: f64f7800 f64f7870 c0552580 ea4a5e2c c0279ecc 00000300 c05525dc ea4a5e44 Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: c0275ccf f64f7808 ea4a5e44 c0275de3 f64f7870 ea4a5e60 c020d3a2 f64f7870 Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: c05528c8 f64f7888 c020d3c9 00000000 ea4a5e6c c020d3dd f64f7870 ea4a5e8c Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: Call Trace: Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: [<c010317a>] show_trace_log_lvl+0x26/0x3c Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: [<c010322b>] show_stack_log_lvl+0x9b/0xa3 Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: [<c01035f6>] show_registers+0x18f/0x229 Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: [<c01037ba>] die+0x12a/0x1ef Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: [<c01038ff>] do_trap+0x80/0x88 Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: [<c01040fa>] do_invalid_op+0xa0/0xaa Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: [<c047f329>] error_code+0x39/0x40 Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: [<c0279ecc>] platform_device_release+0x1b/0x35 Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: [<c0275ccf>] device_release+0x2f/0x71 Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: [<c020d3a2>] kobject_cleanup+0x49/0x70 Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: [<c020d3dd>] kobject_release+0x14/0x16 Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: [<c020df30>] kref_put+0x6a/0x78 Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: [<c020d357>] kobject_put+0x20/0x22 Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: [<c0275de3>] put_device+0x18/0x1a Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: [<c0279efe>] platform_device_put+0x18/0x1a Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: [<f8ac98a0>] depca_module_init+0x79/0xc4 [depca] Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: [<c012be5a>] sys_init_module+0x1332/0x14b9 Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: [<c0102c9d>] sysenter_past_esp+0x56/0x79 Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: ======================= Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: Code: 56 53 85 ff 74 47 9c 5e fa 8d 97 00 00 00 40 c1 ea 0c c1 e2 05 03 15 a0 26 68 c0 8b 02 f6 c4 40 74 03 8b 52 0c 8b 02 84 c0 78 02 <0f> 0b 8b 4a 18 8b 19 8b 03 3b 43 04 72 0b 89 c8 89 da e8 25 ff Message from syslogd@...alhost at Mon Dec 11 11:43:56 2006 ... localhost kernel: EIP: [<c014b738>] kfree+0x32/0x59 SS:ESP 0068:ea4a5e10 This used to work in all of the older 2.6 kernels I 've tried before (which are easily about 10 different ones). It still worked in kernel 2.6.18 The bug should be easily reproducable. If not, I can send my .config file for any misconfiguration you might encounter. Greetings Tom Kerremans - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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