This message generated a parse failure. Raw output follows here. Please use 'back' to navigate. From devnull@lkml.org Sat May 4 06:51:49 2024 Received: from entropy.muc.muohio.edu (entropy.muc.muohio.edu [134.53.213.10]) by herbie.ucs.indiana.edu (8.8.8/8.8.8) with ESMTP id NAA05463 for ; Sat, 21 Nov 1998 13:48:16 -0500 (EST) Received: from vger.rutgers.edu (vger.rutgers.edu [128.6.190.2]) by entropy.muc.muohio.edu (8.9.0/8.8.7) with ESMTP id NAA07403; Sat, 21 Nov 1998 13:44:57 -0500 Received: by vger.rutgers.edu id <157211-9022>; Sat, 21 Nov 1998 06:04:38 -0500 Received: from heisenberg.ccac.RWTH-Aachen.DE ([137.226.243.200]:2170 "EHLO heisenberg.ccac.rwth-aachen.de" ident: "mail") by vger.rutgers.edu with ESMTP id <160235-9022>; Fri, 20 Nov 1998 16:35:13 -0500 Received: from (lykos.canis) [137.226.243.200] (root) by heisenberg.ccac.rwth-aachen.de with esmtp (Exim 1.92 #1) id 0zgxng-0000HH-00 (Debian); Fri, 20 Nov 1998 22:09:09 +0100 Message-Id: <199811201609.RAA06482@lykos.canis> X-Mailer: exmh version 2.0.2 To: linux-kernel@vger.rutgers.edu Cc: hpa@transmeta.com, torvalds@transmeta.com From: Joerg Reuter Subject: CDROM freezes (Re: Kernel 126 problem) In-Reply-To: Your message of "Mon, 16 Nov 1998 08:17:05 +0800." Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_-161414700P"; micalg=pgp-md5; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Fri, 20 Nov 1998 17:09:22 +0100 X-Orcpt: rfc822;linux-kernel@vger.rutgers.edu Sender: owner-linux-kernel@vger.rutgers.edu Precedence: bulk X-Loop: majordomo@vger.rutgers.edu --==_Exmh_-161414700P Content-Type: message/rfc822 X-Mailer: exmh version 2.0.2 To: linux-kernel@vger.rutgers.edu Cc: hpa@transmeta.com, torvalds@transmeta.com From: Joerg Reuter Subject: CDROM freezes (Re: Kernel 126 problem) In-Reply-To: Your message of "Mon, 16 Nov 1998 08:17:05 +0800." Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii John Summerfield wrote: > tried to access my RedHat 5.1 CD - mounted by autofs - and got to > ls /misc/cd/live > where I pressed to expand the list. The system froze at this > point: no mouse, no keyboard and no response to ping from another box. As I wrote yesterday: Me too. :-( I can now reproduce the locks I've seen... It can happen with every cd access, not only autofs. In my case it crashes with a NULL pointer dereference in sock.c:sock_rfree()+0xd: void sock_rfree(struct sk_buff *skb) { struct sock *sk = skb->sk; atomic_sub(skb->truesize, &sk->rmem_alloc); } which gets called from skbuff.c:__kfree_skb(), skb->list is != NULL as well... After the NULL pointer dereference the kernel tries to kill the interrupt handler, however it crashes with the message that it cannot kill the Idle task. The traceback looks like that: sock_rfree() + 0xd some static AX.25 function aha152x_intr() + whatever some static z8530drv function scc_proc_dir_entry + 0x74 (probably data [?!]) I can see how I get from a timer function into the aha152x ISR, but how do I get from there into a NET_BH (AX.25) function? Regards, Joerg Reuter http://poboxes.com/jreuter/ And I make my way to where the warm scent of soil fills the evening air. Everything is waiting quietly out there.... (Anne Clark) --==_Exmh_-161414700P Content-Type: application/pgp-signature -----BEGIN PGP MESSAGE----- Version: 2.6.3ia iQEVAwUBNlWULyBlnSJSYec1AQF4gQf/TWz2HCQKphorO5AqGXrFGRhl8FRC9RGv 6BumCY5mW2UKB7S4tPnHGRqN0ck7xvfhLXca8sHTTHPbFQHbV+y9LlDhieAXPhbc EGQUXtmzi+3M5QY1d7JWrmHpxiUq+ImpOtmDPfdkZaksyRjliZN9qyW8N/dUxgCL FomrFX+iqlLUhALIkXHttvD4fdkFSpHBQcO9oQQ9+r8jAt6GKT6pk3UfABwfh6Qx kk3zFUvBTRW61lfwG/bPFdSXHnEnfTXCVNbNaWMV7/FXimvAxYbPKl25J0ZtTjnh KgEVpcneWUUginIV10+yFctbL3rb2zVutf4tLSb+XgApaYp+4+4ULw== =pm45 -----END PGP MESSAGE----- --==_Exmh_-161414700P-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/