From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 26 Sep 2008 12:01:02 +0200 From: "stephane ancelot" Content-Type: text/plain; format=flowed; delsp=yes; charset=utf-8 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Message-ID: Subject: [Xenomai-core] rt_sem_create bug when registring in proc List-Id: "Xenomai life and development \(bug reports, patches, discussions\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "xenomai@xenomai.org" 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 Pid: 4, comm: events/0 Tainted: P (2.6.24.2-ipipe #3) EIP: 0060:[] 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: [] proc_create+0x4b/0x110 [] idr_get_new+0xa/0x30 [] __sem_read_proc+0x0/0x130 [] create_proc_entry+0x44/0x90 [] registry_proc_callback+0xa1c/0xb00 [] update_curr+0x71/0x100 [] update_curr+0xf8/0x100 [] set_next_entity+0x1f/0x50 [] registry_proc_callback+0x0/0xb00 [] run_workqueue+0xb6/0x1a0 [] schedule+0x1df/0x3d0 [] worker_thread+0x6d/0xa0 [] autoremove_wake_function+0x0/0x50 [] worker_thread+0x0/0xa0 [] kthread+0x42/0x70 [] kthread+0x0/0x70 [] 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 ae f7 d1 49 5f 89 c8 c3 8d b6 00 00 00 00 8d bc 27 00 00 00 EIP: [] strlen+0xa/0x20 SS:ESP 0068:ddc27e8c ---[ end trace 614a6309c2874abe ]--- Best regards S.Ancelot