Messages in this thread | | | Date | Fri, 2 Jul 2004 08:49:15 -0700 | From | "Randy.Dunlap" <> | Subject | Re: Crash when loading a module (without executing any code of the module!) |
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On Fri, 2 Jul 2004 17:15:29 +0200 Michael Tasche wrote:
| Hi, | | attached you will find the .configs of the two kernel-trees.
Not. and there was a part 2 of the request also:
| >Can you post the module source code, or a subset of it that causes | >the problem?
My modules load OK, so without some broken source code, it's gonna be tough.
| -Michael | | On Wed, 30 Jun 2004 14:29:48 -0700, Randy.Dunlap <rddunlap@osdl.org> wrote: | > | >Hi- | > | >On Wed, 30 Jun 2004 15:41:27 +0200 Michael Tasche wrote: | >| Hi, | >| currently I'm developping a small kernel module for a hardware (which was developped by a friend of mine), which is | >| supposed to load a firmware onto a PCI-card. | >| | >| The development is done together with the friend, who's developping the firmware. | >| We tried the following: | >| He compiled a kernel-independent object (containing the firmware) on his system using kbuild | >| (Dual-AthlonMP, SuSE 8.2 with kernel.org-kernel 2.6.3, module-init-tools 0.9.14-pre2, gcc 3.3.1, | >| ld 2.14.90.0.5 20030722). | >| Afterwards I tried to link it to my kernel-module (using the same kbuild makefile with | >| firmware.o_shipped) on my machine (Fedora2, 2.6.5-3.1smp, module-init-tools 3.0-pre10, gcc 3.3.3, ld 2.15.90.0.3 | >| 20040415). | >| | >| This is what happened: | >| | >| Unable to handle kernel paging request at virtual address 82d90700 | >| printing eip: | >| 02135657 | >| *pde = 00000000 | >| Oops: 0002 [#1] | >| PREEMPT SMP | >| CPU: 1 | >| EIP: 0060:[<02135657>] Not tainted | >| EFLAGS: 00010246 (2.6.5-3.1smp) | >| EIP is at module_unload_init+0xa/0x4d | >| eax: 82d90700 ebx: 82c2387c ecx: 82d8f600 edx: 00000000 | >| esi: 82c38f33 edi: 82c40027 ebp: 000005f0 esp: 763c3f38 | >| ds: 007b es: 007b ss: 0068 | >| Process insmod (pid: 1812, threadinfo=763c2000 task=7f3c60b0) | >| Stack: 02136dc0 7864cc40 8282a000 00000000 82d8f600 00000000 00000000 00000000 | >| 00000000 00000000 0000000b 00000000 00000010 00000000 00000000 00000009 | >| 00000025 00000024 00000026 82c3829c 82c23727 82a94000 0856a008 763c3fc4 | >| Call Trace: | >| [<02136dc0>] load_module+0x53e/0x7fa | >| [<021370da>] sys_init_module+0x5e/0x293 | >| | >| Code: 89 81 00 11 00 00 89 81 04 11 00 00 89 c8 c7 80 00 01 00 00 | > | >Some of those stack addresses look odd to me. | >Please send me your kernel .config file. | > | >| What puzzles me, is that I don't see any of my code in the calltrace. I had a look into the | >| kernel-code and it seems to crash, before it even jumps into my code. What am I missing? | >| By the way, everything works fine, if I compile the entire module on my machine. | >| Some more testing showed, that we do also expierence a crash, if we do everything vice-versa. | >| | >| Regards, | >| Michael | >| | >| P.S: This was also posted by the driver developer to comp.os.linux.development.system. | > | >Can you post the module source code, or a subset of it that causes | >the problem? | > | >--
-- ~Randy - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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