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From devnull@lkml.org Thu Jun 1 17:48:26 2023 Received: from spaans.ds9a.nl (adsl-xs4all.ds9a.nl [213.84.159.51]) by kylie.puddingonline.com (8.11.6/8.11.6) with SMTP id g8HJfWi11259 for ; Tue, 17 Sep 2002 21:41:34 +0200 Received: (qmail 541 invoked from network); 17 Sep 2002 19:39:05 -0000 Received: from unknown (HELO spaans.ds9a.nl) (3ffe:8280:10:360:202:44ff:fe2a:a1dd) by mayo.ipv6.ds9a.nl with SMTP; 17 Sep 2002 19:39:05 -0000 Received: (qmail 1643 invoked by uid 1000); 17 Sep 2002 19:39:05 -0000 MBOX-Line: From linux-kernel-owner@vger.kernel.org Sat Aug 26 10:29:39 2000 Received: (maildatabase); juh Received: (qmail 10529 invoked by alias); 26 Aug 2000 10:29:39 -0000 Received: (qmail 10526 invoked from network); 26 Aug 2000 10:29:38 -0000 Received: from server.ds9a.tudelft.nl (HELO home.ds9a.nl) (10.0.0.1) by spaans.ds9a.nl with SMTP; 26 Aug 2000 10:29:38 -0000 Received: (qmail 19185 invoked by uid 0); 26 Aug 2000 11:24:47 -0000 Received: from digger.ds9a.nl (HELO outpost.ds9a.nl) (postfix@213.244.168.211) by home.ds9a.nl with SMTP; 26 Aug 2000 11:24:47 -0000 Received: from vger.kernel.org (vger.kernel.org [199.183.24.194]) by outpost.ds9a.nl (Postfix) with ESMTP id 6B9EC750E0 for ; Fri, 25 Aug 2000 22:03:31 +0200 (CEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 25 Aug 2000 16:17:06 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 25 Aug 2000 16:16:56 -0400 Received: from pallas.veritas.com ([204.177.156.25]:5616 "EHLO pallas.veritas.com") by vger.kernel.org with ESMTP id ; Fri, 25 Aug 2000 16:16:46 -0400 Received: from megami.veritas.com (megami.veritas.com [192.203.46.101]) by pallas.veritas.com (8.9.1a/8.9.1) with SMTP id NAA06758; Fri, 25 Aug 2000 13:08:04 -0700 (PDT) Received: from saturn.homenet([192.168.225.245]) (11790 bytes) by megami.veritas.com via sendmail with P:esmtp/R:smart_host/T:smtp (sender: ) id for ; Fri, 25 Aug 2000 13:02:35 Date: Fri, 25 Aug 2000 21:09:14 +0100 (BST) From: Tigran Aivazian X-Sender: tigran@saturn.homenet To: Linus Torvalds Cc: aviro@redhat.com, davem@redhat.com, linux-kernel@vger.kernel.org Subject: [patch-2.4.0-test7] bugfix - ipv6 panic on boot Message-Id: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org Hi Linus, Attached patch fixes the bug - ipv6 tries to use sockfs before its mounted. I also attached (for the benefit of linux-kernel listeners) my serial console session log. Regards, Tigran --- linux/net/socket.c Thu Aug 24 08:08:47 2000 +++ work/net/socket.c Fri Aug 25 21:00:52 2000 @@ -1710,10 +1710,11 @@ * Initialize the protocols module. */ - proto_init(); - register_filesystem(&sock_fs_type); sock_mnt = kern_mount(&sock_fs_type); + + proto_init(); + /* * The netlink device handler may be needed early. Linux version 2.4.0-test7 (root@saturn) (gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)) #2 SMP Fri Aug 25 20:41:21 BST 2000 BIOS-provided physical RAM map: BIOS-e820: 000000000009fc00 @ 0000000000000000 (usable) BIOS-e820: 0000000000000400 @ 000000000009fc00 (reserved) BIOS-e820: 0000000000010000 @ 00000000000f0000 (reserved) BIOS-e820: 0000000000001000 @ 00000000fec00000 (reserved) BIOS-e820: 0000000000001000 @ 00000000fee00000 (reserved) BIOS-e820: 0000000000010000 @ 00000000ffff0000 (reserved) BIOS-e820: 000000003fef0000 @ 0000000000100000 (usable) BIOS-e820: 000000000000d000 @ 000000003fff3000 (ACPI data) BIOS-e820: 0000000000003000 @ 000000003fff0000 (ACPI NVS) Warning only 896MB will be used. Use a HIGHMEM enabled kernel. Scan SMP from c0000000 for 1024 bytes. Scan SMP from c009fc00 for 1024 bytes. Scan SMP from c00f0000 for 65536 bytes. found SMP MP-table at 000f5b30 hm, page 000f5000 reserved twice. hm, page 000f6000 reserved twice. hm, page 000f1000 reserved twice. hm, page 000f2000 reserved twice. On node 0 totalpages: 229376 zone(0): 4096 pages. zone(1): 225280 pages. zone(2): 0 pages. Intel MultiProcessor Specification v1.1 Virtual Wire compatibility mode. OEM ID: OEM00000 Product ID: PROD00000000 APIC at: 0xFEE00000 Processor #0 Pentium(tm) Pro APIC version 17 Floating point unit present. Machine Exception supported. 64 bit compare & exchange supported. Internal APIC present. Bootup CPU Processor #1 Pentium(tm) Pro APIC version 17 Floating point unit present. Machine Exception supported. 64 bit compare & exchange supported. Internal APIC present. Bus #0 is PCI Bus #1 is PCI Bus #2 is PCI Bus #3 is ISA I/O APIC #2 Version 17 at 0xFEC00000. Int: type 3, pol 0, trig 0, bus 3, IRQ 00, APIC ID 2, APIC INT 00 Int: type 0, pol 0, trig 0, bus 3, IRQ 01, APIC ID 2, APIC INT 01 Int: type 0, pol 0, trig 0, bus 3, IRQ 00, APIC ID 2, APIC INT 02 Int: type 0, pol 0, trig 0, bus 3, IRQ 03, APIC ID 2, APIC INT 03 Int: type 0, pol 0, trig 0, bus 3, IRQ 04, APIC ID 2, APIC INT 04 Int: type 0, pol 0, trig 0, bus 3, IRQ 05, APIC ID 2, APIC INT 05 Int: type 0, pol 0, trig 0, bus 3, IRQ 06, APIC ID 2, APIC INT 06 Int: type 0, pol 0, trig 0, bus 3, IRQ 07, APIC ID 2, APIC INT 07 Int: type 0, pol 1, trig 1, bus 3, IRQ 08, APIC ID 2, APIC INT 08 Int: type 0, pol 0, trig 0, bus 3, IRQ 09, APIC ID 2, APIC INT 09 Int: type 0, pol 0, trig 0, bus 3, IRQ 0a, APIC ID 2, APIC INT 0a Int: type 0, pol 0, trig 0, bus 3, IRQ 0b, APIC ID 2, APIC INT 0b Int: type 0, pol 0, trig 0, bus 3, IRQ 0c, APIC ID 2, APIC INT 0c Int: type 0, pol 0, trig 0, bus 3, IRQ 0d, APIC ID 2, APIC INT 0d Int: type 0, pol 0, trig 0, bus 3, IRQ 0e, APIC ID 2, APIC INT 0e Int: type 0, pol 0, trig 0, bus 3, IRQ 0f, APIC ID 2, APIC INT 0f Int: type 0, pol 3, trig 3, bus 0, IRQ 24, APIC ID 2, APIC INT 11 Int: type 0, pol 3, trig 3, bus 0, IRQ 28, APIC ID 2, APIC INT 12 Int: type 0, pol 3, trig 3, bus 0, IRQ 29, APIC ID 2, APIC INT 12 Int: type 0, pol 3, trig 3, bus 0, IRQ 30, APIC ID 2, APIC INT 10 Int: type 0, pol 3, trig 3, bus 1, IRQ 00, APIC ID 2, APIC INT 10 Int: type 0, pol 3, trig 3, bus 2, IRQ 10, APIC ID 2, APIC INT 13 Int: type 0, pol 3, trig 3, bus 2, IRQ 14, APIC ID 2, APIC INT 10 Int: type 2, pol 3, trig 1, bus 3, IRQ 00, APIC ID 2, APIC INT 17 Lint: type 3, pol 0, trig 0, bus 0, IRQ 00, APIC ID ff, APIC LINT 00 Lint: type 1, pol 0, trig 0, bus 0, IRQ 00, APIC ID ff, APIC LINT 01 Processors: 2 mapped APIC to ffffe000 (fee00000) mapped IOAPIC to ffffd000 (fec00000) Kernel command line: BOOT_IMAGE=debug7-ipv6 ro root=1643 video=matrox:vesa:0x118 parport=0x378,7 console=ttyS1,9600 console=tty0 Initializing CPU#0 Detected 548545327 Hz processor. Console: colour VGA+ 80x25 Calibrating delay loop... 1094.45 BogoMIPS kdb version 1.3 by Scott Lurndal. Copyright SGI, All Rights Reserved Memory: 900128k/917504k available (1900k kernel code, 16988k reserved, 128k data, 224k init, 0k highmem) Dentry-cache hash table entries: 131072 (order: 8, 1048576 bytes) Buffer-cache hash table entries: 65536 (order: 6, 262144 bytes) Page-cache hash table entries: 262144 (order: 8, 1048576 bytes) Inode-cache hash table entries: 65536 (order: 7, 524288 bytes) CPU serial number disabled. Checking 386/387 coupling... OK, FPU using exception 16 error reporting. Enabling fast FPU save and restore... done. Enabling unmasked SIMD FPU exception support... done. Checking SIMD FPU exceptions... OK, SIMD FPU using exception 19 error reporting. Checking 'hlt' instruction... OK. POSIX conformance testing by UNIFIX mtrr: v1.36 (20000221) Richard Gooch (rgooch@atnf.csiro.au) CPU serial number disabled. CPU0: Intel Pentium III (Katmai) stepping 03 per-CPU timeslice cutoff: 1429.62 usecs. Getting VERSION: 40011 Getting VERSION: 40011 Getting ID: 0 Getting ID: f000000 Getting LVT0: 700 Getting LVT1: 400 enabled ExtINT on CPU#0 ESR value before enabling vector: 00000000 ESR value after enabling vector: 00000000 CPU present map: 3 Booting processor 1/1 eip 2000 Setting warm reset code and vector. 1. 2. 3. Asserting INIT. Waiting for send to finish... +Deasserting INIT. Waiting for send to finish... +#startup loops: 2. Sending STARTUP #1. After apic_write. Startup point 1. Initializing CPU#1 Waiting for send to finish... CPU#1 (phys ID: 1) waiting for CALLOUT +Sending STARTUP #2. After apic_write. Startup point 1. Waiting for send to finish... +After Startup. Before Callout 1. After Callout 1. CALLIN, before setup_local_APIC(). masked ExtINT on CPU#1 ESR value before enabling vector: 00000000 ESR value after enabling vector: 00000000 Calibrating delay loop... 1094.45 BogoMIPS Stack at about c1e19fb4 CPU serial number disabled. OK. CPU1: Intel Pentium III (Katmai) stepping 03 CPU has booted. Before bogomips. Total of 2 processors activated (2188.90 BogoMIPS). Before bogocount - setting activated=1. Boot done. ENABLING IO-APIC IRQs ...changing IO-APIC physical APIC ID to 2 ... ok. Synchronizing Arb IDs. ..TIMER: vector=49 pin1=2 pin2=0 activating NMI Watchdog ... done. testing the IO APIC....................... .................................... done. calibrating APIC timer ... ..... CPU clock speed is 548.5465 MHz. ..... host bus clock speed is 99.7356 MHz. cpu: 0, clocks: 997356, slice: 332452 CPU0 cpu: 1, clocks: 997356, slice: 332452 CPU1 checking TSC synchronization across CPUs: passed. Setting commenced=1, go go go PCI: PCI BIOS revision 2.10 entry at 0xfb270, last bus=2 PCI: Using configuration type 1 PCI: Probing PCI hardware PCI: Using IRQ router PIIX [8086/7000] at 00:07.0 PCI->APIC IRQ transform: (B0,I9,P0) -> 17 PCI->APIC IRQ transform: (B0,I10,P0) -> 18 PCI->APIC IRQ transform: (B0,I10,P0) -> 18 PCI->APIC IRQ transform: (B0,I12,P0) -> 16 PCI->APIC IRQ transform: (B1,I0,P0) -> 16 PCI->APIC IRQ transform: (B2,I4,P0) -> 19 PCI->APIC IRQ transform: (B2,I5,P0) -> 16 Limiting direct PCI/PCI transfers. isapnp: Scanning for Pnp cards... isapnp: Card 'Highlight Plug & Play Ethernet Card' isapnp: 1 Plug & Play card detected total Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP IP: routing cache hash table of 8192 buckets, 64Kbytes TCP: Hash tables configured (established 65536 bind 65536) IPv6 v0.8 for NET4.0 Unable to handle kernel NULL pointer dereference at virtual address 0000001c printing eip: c01c5e75 *pde = 00000000 Entering kdb (0xc1e3c000) on processor 0 Panic: Oops due to panic @ 0xc01c5e75 eax = 0x00000000 ebx = 0xc1e1e420 ecx = 0xc1e1e340 edx = 0xc1e3c000 esi = 0xc1e3c000 edi = 0xc0105000 esp = 0xc1e3df98 eip = 0xc01c5e75 ebp = 0xc1e3df9c ss = 0x00000018 cs = 0x00000010 eflags = 0x00010286 ds = 0xc1e30018 es = 0x00000018 origeax = 0xffffffff ®s = 0xc1e3df64 [0]kdb> ps Task Addr Pid Parent [*] cpu State Thread Command 0xc1e3c000 00000001 00000000 1 000 run 0xc1e3c340*swapper [0]kdb> btp diag: -16: Illegal numeric value [0]kdb> [0]kdb> btp diag: -16: Illegal numeric value [0]kdb> ps  btp 1kdb: expected enter got 0x82 status 0x14 EBP EIP Function(args) 0xc02f035c 0xc01c5e75 sock_alloc+0x25 kernel .text 0xc0100000 0xc01c5e50 0xc01c5f18 0xc1e3dfa8 0xc0313399 icmpv6_init+0x9 (0xc02f3720) kernel .text.init 0xc02fe000 0xc0313390 0xc0313450 0xc1e3dfb4 0xc0312faa inet6_proto_init+0x1a (0xc02f035c) kernel .text.init 0xc02fe000 0xc0312f90 0xc03130c4 0xc1e3dfc4 0xc0312048 proto_init+0x18 kernel .text.init 0xc02fe000 0xc0312030 0xc031205c 0xc1e3dfcc 0xc03120a1 sock_init+0x45 kernel .text.init 0xc02fe000 0xc031205c 0xc03120c0 0xc1e3dfd4 0xc02fedf1 do_basic_setup+0x29 (0xf00) kernel .text.init 0xc02fe000 0xc02fedc8 0xc02fee10 0xc1e3dfec 0xc0107032 init+0x32 kernel .text 0xc0100000 0xc0107000 0xc01071b0 0xc01091b7 kernel_thread+0x23 kernel .text 0xc0100000 0xc0109194 0xc01091cc [0]kdb> mds sock_mnt 0xc034dea0 00000000 .... 0xc034dea4 00000000 .... 0xc034dea8 00000000 .... 0xc034deac 00000000 .... 0xc034deb0 00000000 .... 0xc034deb4 00000000 .... 0xc034deb8 00000000 .... 0xc034debc 00000000 .... [0]kdb> mds file_systems 0xc0342960 c02e5960 shm_fs_type kernel .data 0xc02db120 0xc02e5960 0xc02e5980 0xc0342964 00000000 .... 0xc0342968 00000000 .... 0xc034296c 00000000 .... 0xc0342970 00000000 .... 0xc0342974 00000000 .... 0xc0342978 00000000 .... 0xc034297c 00000000 .... [0]kdb> aha, sockfs not even registered yet - blame Al Viro, maybe... aha, = 0x0000000a [0]kdb> go Oops: 0000 CPU: 0 EIP: 0010:[] EFLAGS: 00010286 eax: 00000000 ebx: c1e1e420 ecx: c1e1e340 edx: c1e3c000 esi: c1e3c000 edi: c0105000 ebp: c1e3df9c esp: c1e3df98 ds: 0018 es: 0018 ss: 0018 Process swapper (pid: 1, stackpage=c1e3d000) Stack: c02f035c c1e3dfa8 c0313399 c02f035c c1e3dfb4 c0312faa c02f3720 c1e3dfc4 c0312048 c02f035c 00000f00 c1e3dfcc c03120a1 c1e3dfd4 c02fedf1 c1e3dfec c0107032 00000f00 c02fdfb8 c0105000 ffffffff c02fdfc0 c01091b7 00000000 Call Trace: [] [] [] Code: 8b 40 1c 89 81 84 00 00 00 66 c7 41 22 ff c1 c6 81 d0 00 00 Kernel panic: Attempted to kill init! cu: Got hangup signal - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/