Le Sun, 28 Sep 2008 16:25:56 +0200, Philippe Gerum <[EMAIL PROTECTED]> a écrit:
> stephane ancelot wrote: >> Hi, >> I have the following kernel bug, when using a string name in >> rt_sem_create. using NULL as name do not report this problem. >> >> BUG: unable to handle kernel paging request at virtual address de82a268 >> printing eip: c025d51a *pde = 1dd3e067 *pte = 00000000 >> Oops: 0000 [#1] PREEMPT >> Modules linked in: xxxxxx(P) elok_s(P) e100 mii >> > > You did not specify the Xenomai version in use. Looking at this output, > you may > want to search the bug in your proprietary module code first; it seems > that you > passed a string laid into the data segment of a module that has been > unloaded, > without removing the semaphore it had initially created. > Hi, You are right, the semaphore was created in a thread meanwhile a bad coded init module was unloading it. (return missing in init routine ) thanks. Best Regards Steph >> Pid: 4, comm: events/0 Tainted: P (2.6.24.2-ipipe #3) >> EIP: 0060:[<c025d51a>] EFLAGS: 00010246 CPU: 0 >> EIP is at strlen+0xa/0x20 >> EAX: 00000000 EBX: 00008124 ECX: ffffffff EDX: de82a268 >> ESI: de82a268 EDI: de82a268 EBP: 00000001 ESP: ddc27e8c >> DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 >> Process events/0 (pid: 4, ti=ddc26000 task=ddc19ab0 task.ti=ddc26000)<0> >> I-pipe domain Linux >> Stack: ddc27ebc c01e445b dde783c0 c0257d2a dde78140 de82a268 de82a268 >> c016e7a0 >> c048aebc 00000000 c01e46d4 00000001 dde78140 c04fbac4 c016338c >> 00000200 >> 00000000 ffffffff ffffffff 0000007b 00000002 00000000 dde783c0 >> dde78140 >> Call Trace: >> [<c01e445b>] proc_create+0x4b/0x110 >> [<c0257d2a>] idr_get_new+0xa/0x30 >> [<c016e7a0>] __sem_read_proc+0x0/0x130 >> [<c01e46d4>] create_proc_entry+0x44/0x90 >> [<c016338c>] registry_proc_callback+0xa1c/0xb00 >> [<c01130c1>] update_curr+0x71/0x100 >> [<c0113148>] update_curr+0xf8/0x100 >> [<c01132ef>] set_next_entity+0x1f/0x50 >> [<c0162970>] registry_proc_callback+0x0/0xb00 >> [<c0129516>] run_workqueue+0xb6/0x1a0 >> [<c039ff8f>] schedule+0x1df/0x3d0 >> [<c0129e9d>] worker_thread+0x6d/0xa0 >> [<c012d670>] autoremove_wake_function+0x0/0x50 >> [<c0129e30>] worker_thread+0x0/0xa0 >> [<c012d302>] kthread+0x42/0x70 >> [<c012d2c0>] kthread+0x0/0x70 >> [<c010398b>] kernel_thread_helper+0x7/0x1c >> ======================= >> Code: 00 56 89 c6 89 d0 88 c4 ac 38 e0 74 09 84 c0 75 f7 be 01 00 00 00 >> 89 >> f0 48 5e c3 8d b6 00 00 00 00 57 b9 ff ff ff ff 89 c7 31 c0 <f2> ae f7 >> d1 >> 49 5f 89 c8 c3 8d b6 00 00 00 00 8d bc 27 00 00 00 >> EIP: [<c025d51a>] strlen+0xa/0x20 SS:ESP 0068:ddc27e8c >> ---[ end trace 614a6309c2874abe ]--- >> >> Best regards >> S.Ancelot >> >> _______________________________________________ >> Xenomai-core mailing list >> Xenomai-core@gna.org >> https://mail.gna.org/listinfo/xenomai-core >> > > _______________________________________________ Xenomai-core mailing list Xenomai-core@gna.org https://mail.gna.org/listinfo/xenomai-core
