From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 26 Nov 2001 23:22:47 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 26 Nov 2001 23:22:28 -0500 Received: from fe6.southeast.rr.com ([24.93.67.53]:18705 "EHLO Mail6.triad.rr.com") by vger.kernel.org with ESMTP id ; Mon, 26 Nov 2001 23:22:21 -0500 Message-ID: <3C031524.50F076CD@triad.rr.com> Date: Mon, 26 Nov 2001 23:23:00 -0500 From: "John D. Davis" X-Mailer: Mozilla 4.78 [en] (X11; U; Linux 2.4.16cd i686) X-Accept-Language: en MIME-Version: 1.0 To: Greg KH CC: linux-kernel@vger.kernel.org Subject: Re: Possible problems with khub in current 2.4.15-2.4.16 kernels In-Reply-To: <3C029D3F.E43B4E9C@triad.rr.com> <20011126135142.A4675@kroah.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Greg, The oops only occurs at startup. here's the oops parsed through ksymoops Nov 26 13:50:02 orca kernel: input2<1>Unable to handle kernel paging request at virtual address ffffffff Nov 26 13:50:02 orca kernel: c0264fbb Nov 26 13:50:02 orca kernel: *pde = 00001063 Nov 26 13:50:02 orca kernel: Oops: 0000 Nov 26 13:50:02 orca kernel: CPU: 0 Nov 26 13:50:02 orca kernel: EIP: 0010:[vsnprintf+523/1056] Not tainted Nov 26 13:50:02 orca kernel: EIP: 0010:[] Not tainted Using defaults from ksymoops -t elf32-i386 -a i386 Nov 26 13:50:02 orca kernel: EFLAGS: 00010097 Nov 26 13:50:02 orca kernel: eax: ffffffff ebx: c03190b0 ecx: ffffffff edx: fffffffe Nov 26 13:50:02 orca kernel: esi: ffffffff edi: c1557ed4 ebp: ffffffff esp: c1557e84 Nov 26 13:50:02 orca kernel: ds: 0018 es: 0018 ss: 0018 Nov 26 13:50:02 orca kernel: Process khubd (pid: 7, stackpage=c1557000) Nov 26 13:50:02 orca kernel: Stack: 00000000 c031949f 0000000a c03190a0 00000246 00000001 c1543c00 c0115a0e Nov 26 13:50:02 orca kernel: c03190a0 00000400 c029f1b4 c1557ec8 d3b3a000 ffffffff 00000001 c021c3ac Nov 26 13:50:02 orca kernel: c029f1a0 00000001 00000000 ffffffff d3b3b230 00000001 00000004 00000001 Nov 26 13:50:02 orca kernel: Call Trace: [printk+94/272] [hid_probe+300/320] [usb_find_interface_driver+318/496] [usb_find_drivers+57/128] [usb_new_device+387/416] Nov 26 13:50:02 orca kernel: Call Trace: [] [] [] [] [] Nov 26 13:50:02 orca kernel: [] [] [] [] [] [] Nov 26 13:50:02 orca kernel: [] Nov 26 13:50:02 orca kernel: Code: 80 38 00 74 07 40 4a 83 fa ff 75 f4 29 c8 f6 04 24 10 89 c6 >>EIP; c0264fba <===== Trace; c0115a0e Trace; c021c3ac Trace; c020ebbe Trace; c020ee98 Trace; c0210da2 Trace; c021226a Trace; c0212296 Trace; c0212474 Trace; c0212644 Trace; c0105000 <_stext+0/0> Trace; c0105516 Trace; c0212610 Code; c0264fba 00000000 <_EIP>: Code; c0264fba <===== 0: 80 38 00 cmpb $0x0,(%eax) <===== Code; c0264fbc 3: 74 07 je c <_EIP+0xc> c0264fc6 Code; c0264fbe 5: 40 inc %eax Code; c0264fc0 6: 4a dec %edx Code; c0264fc0 7: 83 fa ff cmp $0xffffffff,%edx Code; c0264fc4 a: 75 f4 jne 0 <_EIP> Code; c0264fc6 c: 29 c8 sub %ecx,%eax Code; c0264fc8 e: f6 04 24 10 testb $0x10,(%esp,1) Code; c0264fcc 12: 89 c6 mov %eax,%esi Greg KH wrote: > On Mon, Nov 26, 2001 at 02:51:27PM -0500, John D. Davis wrote: > > I've noticed an odd occurance with the 2.4.15 and 2.4.16 kernels during > > testing. > > > > There seems to be a problem with khub.c or it could be my hardware but > > I keep getting the following oops and ptrace about 50% of the time > > during boot. The following snip is from the boot log of the 2.4.16 > > kernel compliled this afternoon. > > Does this happen when you plug in your device after Linux is booted? > Can you send the output of /proc/bus/usb/devices with the device plugged > in (if it doesn't always cause an oops)? > Can you run that oops through ksymoops and post it? > > thanks, > > greg k-h