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Message-Id: <20070718005253.942f0464.akpm@linux-foundation.org> Date: Wed, 18 Jul 2007 00:52:53 -0700 From: Andrew Morton <akpm@...ux-foundation.org> To: netdev@...r.kernel.org, Eugene Surovegin <ebs@...home.net>, linuxppc-embedded@...abs.org Cc: "bugme-daemon@...nel-bugs.osdl.org" <bugme-daemon@...zilla.kernel.org>, bart.vanassche@...il.com Subject: Re: [Bugme-new] [Bug 8778] New: Ocotea board: kernel reports access of bad area during boot with DEBUG_SLAB=y On Wed, 18 Jul 2007 00:07:50 -0700 (PDT) bugme-daemon@...zilla.kernel.org wrote: > http://bugzilla.kernel.org/show_bug.cgi?id=8778 > > Summary: Ocotea board: kernel reports access of bad area during > boot with DEBUG_SLAB=y > Product: Platform Specific/Hardware > Version: 2.5 > KernelVersion: 2.6.22 > Platform: All > OS/Version: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: PPC-32 > AssignedTo: platform_ppc-32@...nel-bugs.osdl.org > ReportedBy: bart.vanassche@...il.com > > > Most recent kernel where this bug did not occur: not known - was probably > already an issue in 2.6.10 > Distribution: not relevant for this issue. > Hardware Environment: AMCC Ocotea board > Software Environment: not relevant for this issue. > Problem Description: see title. > > Steps to reproduce: > 1. Compile the 2.6.22 kernel with the attached .config > 2. Boot an Ocotea board with this kernel. > 3. Observe the output that appears on the serial console. > > U-Boot 1.1.1 (Nov 10 2005 - 16:29:34) > > IBM PowerPC 440 GUNKNOWN (PVR=51b21892) > Board: IBM 440GX Evaluation Board > VCO: 1066 MHz > CPU: 533 MHz > PLB: 152 MHz > OPB: 76 MHz > EPB: 76 MHz > I2C: ready > DRAM: I2c read: failed 4 > I2c read: failed 4 > 256 MB > FLASH: 5 MB > PCI: Bus Dev VenId DevId Class Int > In: serial > Out: serial > Err: serial > KGDB: kgdb ready > ready > Net: ppc_440x_eth0 > BEDBUG:ready > => boot > Waiting for PHY auto negotiation to complete.. done > ENET Speed is 100 Mbps - FULL duplex connection > Using ppc_440x_eth0 device > TFTP from server 172.30.36.154; our IP address is 172.30.39.77 > Filename 'ocotea-vanassb'. > Load address: 0x1000000 > Loading: T ################################################################# > ################################################################# > ################################################################# > ################################################################# > ################# > done > Bytes transferred = 1415440 (159910 hex) > Automatic boot of image at addr 0x01000000 ... > ## Booting image at 01000000 ... > Image Name: Linux-2.6.22 > Created: 2007-07-18 6:53:56 UTC > Image Type: PowerPC Linux Kernel Image (gzip compressed) > Data Size: 1415376 Bytes = 1.3 MB > Load Address: 00000000 > Entry Point: 00000000 > Verifying Checksum ... OK > Uncompressing Kernel Image ... OK > Linux version 2.6.22 (vanassb@...ekorlnx05) (gcc version 3.4.3 (MontaVista > 3.4.7 > IBM Ocotea port (MontaVista Software, Inc. <source@...sta.com>) > Zone PFN ranges: > DMA 0 -> 65536 > Normal 65536 -> 65536 > early_node_map[1] active PFN ranges > 0: 0 -> 65536 > Built 1 zonelists. Total pages: 65024 > Kernel command line: root=/dev/nfs > nfsroot=172.30.36.154:/nfs-export/RFS_MVL4-00 > PID hash table entries: 1024 (order: 10, 4096 bytes) > ------------------------ > | Locking API testsuite: > ---------------------------------------------------------------------------- > | spin |wlock |rlock |mutex | wsem | rsem | > -------------------------------------------------------------------------- > A-A deadlock:failed|failed| ok |failed|failed|failed| > A-B-B-A deadlock:failed|failed| ok |failed|failed|failed| > A-B-B-C-C-A deadlock:failed|failed| ok |failed|failed|failed| > A-B-C-A-B-C deadlock:failed|failed| ok |failed|failed|failed| > A-B-B-C-C-D-D-A deadlock:failed|failed| ok |failed|failed|failed| > A-B-C-D-B-D-D-A deadlock:failed|failed| ok |failed|failed|failed| > A-B-C-D-B-C-D-A deadlock:failed|failed| ok |failed|failed|failed| > double unlock: ok | ok |failed| ok |failed|failed| > initialize held:failed|failed|failed|failed|failed|failed| > bad unlock order: ok | ok | ok | ok | ok | ok | > -------------------------------------------------------------------------- > recursive read-lock: | ok | |failed| > recursive read-lock #2: | ok | |failed| > mixed read-write-lock: |failed| |failed| > mixed write-read-lock: |failed| |failed| > -------------------------------------------------------------------------- > hard-irqs-on + irq-safe-A/12:failed|failed| ok | > soft-irqs-on + irq-safe-A/12:failed|failed| ok | > hard-irqs-on + irq-safe-A/21:failed|failed| ok | > soft-irqs-on + irq-safe-A/21:failed|failed| ok | > sirq-safe-A => hirqs-on/12:failed|failed| ok | > sirq-safe-A => hirqs-on/21:failed|failed| ok | > hard-safe-A + irqs-on/12:failed|failed| ok | > soft-safe-A + irqs-on/12:failed|failed| ok | > hard-safe-A + irqs-on/21:failed|failed| ok | > soft-safe-A + irqs-on/21:failed|failed| ok | > hard-safe-A + unsafe-B #1/123:failed|failed| ok | > soft-safe-A + unsafe-B #1/123:failed|failed| ok | > hard-safe-A + unsafe-B #1/132:failed|failed| ok | > soft-safe-A + unsafe-B #1/132:failed|failed| ok | > hard-safe-A + unsafe-B #1/213:failed|failed| ok | > soft-safe-A + unsafe-B #1/213:failed|failed| ok | > hard-safe-A + unsafe-B #1/231:failed|failed| ok | > soft-safe-A + unsafe-B #1/231:failed|failed| ok | > hard-safe-A + unsafe-B #1/312:failed|failed| ok | > soft-safe-A + unsafe-B #1/312:failed|failed| ok | > hard-safe-A + unsafe-B #1/321:failed|failed| ok | > soft-safe-A + unsafe-B #1/321:failed|failed| ok | > hard-safe-A + unsafe-B #2/123:failed|failed| ok | > soft-safe-A + unsafe-B #2/123:failed|failed| ok | > hard-safe-A + unsafe-B #2/132:failed|failed| ok | > soft-safe-A + unsafe-B #2/132:failed|failed| ok | > hard-safe-A + unsafe-B #2/213:failed|failed| ok | > soft-safe-A + unsafe-B #2/213:failed|failed| ok | > hard-safe-A + unsafe-B #2/231:failed|failed| ok | > soft-safe-A + unsafe-B #2/231:failed|failed| ok | > hard-safe-A + unsafe-B #2/312:failed|failed| ok | > soft-safe-A + unsafe-B #2/312:failed|failed| ok | > hard-safe-A + unsafe-B #2/321:failed|failed| ok | > soft-safe-A + unsafe-B #2/321:failed|failed| ok | > hard-irq lock-inversion/123:failed|failed| ok | > soft-irq lock-inversion/123:failed|failed| ok | > hard-irq lock-inversion/132:failed|failed| ok | > soft-irq lock-inversion/132:failed|failed| ok | > hard-irq lock-inversion/213:failed|failed| ok | > soft-irq lock-inversion/213:failed|failed| ok | > hard-irq lock-inversion/231:failed|failed| ok | > soft-irq lock-inversion/231:failed|failed| ok | > hard-irq lock-inversion/312:failed|failed| ok | > soft-irq lock-inversion/312:failed|failed| ok | > hard-irq lock-inversion/321:failed|failed| ok | > soft-irq lock-inversion/321:failed|failed| ok | > hard-irq read-recursion/123: ok | > soft-irq read-recursion/123: ok | > hard-irq read-recursion/132: ok | > soft-irq read-recursion/132: ok | > hard-irq read-recursion/213: ok | > soft-irq read-recursion/213: ok | > hard-irq read-recursion/231: ok | > soft-irq read-recursion/231: ok | > hard-irq read-recursion/312: ok | > soft-irq read-recursion/312: ok | > hard-irq read-recursion/321: ok | > soft-irq read-recursion/321: ok | > -------------------------------------------------------- > 142 out of 218 testcases failed, as expected. | > ---------------------------------------------------- > Dentry cache hash table entries: 32768 (order: 5, 131072 bytes) > Inode-cache hash table entries: 16384 (order: 4, 65536 bytes) > Memory: 256768k available (2088k kernel code, 816k data, 128k init, 0k highmem) > Mount-cache hash table entries: 512 > NET: Registered protocol family 16 > PCI: Probing PCI hardware > NET: Registered protocol family 2 > IP route cache hash table entries: 2048 (order: 1, 8192 bytes) > TCP established hash table entries: 8192 (order: 5, 163840 bytes) > TCP bind hash table entries: 8192 (order: 5, 163840 bytes) > TCP: Hash tables configured (established 8192 bind 8192) > TCP reno registered > Installing knfsd (copyright (C) 1996 okir@...ad.swb.de). > io scheduler noop registered > io scheduler deadline registered (default) > Serial: 8250/16550 driver $Revision: 1.90 $ 2 ports, IRQ sharing disabled > serial8250: ttyS0 at MMIO 0x0 (irq = 0) is a 16550A > serial8250: ttyS1 at MMIO 0x0 (irq = 1) is a 16550A > RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize > loop: module loaded > PPC 4xx OCP EMAC driver, version 3.54 > mal0: initialized, 4 TX channels, 4 RX channels > zmii0: bridge in SMII mode > eth0: emac0, MAC 00:04:ac:e3:28:8a > eth0: found Generic MII PHY (0x01) > eth1: emac1, MAC 00:00:00:00:00:00 > eth1: found Generic MII PHY (0x02) > rgmii0: input 0 in RGMII mode > eth2: emac2, MAC 00:00:00:00:00:00 > eth2: found CIS8201 Gigabit Ethernet PHY (0x10) > rgmii0: input 1 in RGMII mode > eth3: emac3, MAC 00:00:00:00:00:00 > eth3: found CIS8201 Gigabit Ethernet PHY (0x18) > Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 > ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx > i2c /dev entries driver > IBM IIC driver v2.1 > ibm-iic0: using standard (100 kHz) mode > ibm-iic1: using standard (100 kHz) mode > Netfilter messages via NETLINK v0.30. > TCP cubic registered > NET: Registered protocol family 1 > NET: Registered protocol family 17 > eth0: link is down > IP-Config: Complete: > device=eth0, addr=172.30.39.77, mask=255.255.252.0, gw=172.30.39.254, > host=ocotea, domain=, nis-domain=(none), > bootserver=172.30.36.154, rootserver=172.30.36.154, rootpath= > Looking up port of RPC 100003/3 on 172.30.36.154 > eth0: link is up, 100 FDX, pause enabled > Looking up port of RPC 100005/3 on 172.30.36.154 > VFS: Mounted root (nfs filesystem) readonly. > Freeing unused kernel memory: 128k init > Oops: kernel access of bad area, sig: 11 [#1] > PREEMPT > NIP: c004be40 LR: c017d9d8 CTR: c01822fc > REGS: c02b1af0 TRAP: 0300 Not tainted (2.6.22) > MSR: 00029000 <EE,ME> CR: 28f22b24 XER: 20000000 > DAR: 99750000, DSISR: 00000000 > TASK = c0296830[0] 'swapper' THREAD: c02b0000 > GPR00: c017d9d8 c02b1ba0 c0296830 99750000 c026cb38 000000f8 3b92a76c c02d73ec > GPR08: 0000000c 99750004 00000001 000006a8 00000781 5c8071f0 0fff1200 00000000 > GPR16: 00000001 00000001 c02ae020 c02d0000 080103cf 00000001 000003cf c02b1be8 > GPR24: c01f2c1c c02b1c30 000000f8 c07d3510 000000f8 c0786998 c0786998 99750000 > NIP [c004be40] put_page+0x18/0x170 > LR [c017d9d8] skb_release_data+0x70/0xb4 > Call Trace: > [c02b1ba0] [000000f8] 0xf8 (unreliable) > [c02b1bc0] [c017d9d8] skb_release_data+0x70/0xb4 > [c02b1bd0] [c017d730] kfree_skbmem+0x18/0xdc > [c02b1be0] [c01b0d3c] tcp_read_sock+0x188/0x1d8 > [c02b1c20] [c01f3134] xs_tcp_data_ready+0x70/0x94 > [c02b1c50] [c01b960c] tcp_rcv_established+0x4b4/0x758 > [c02b1c80] [c01c1274] tcp_v4_do_rcv+0x15c/0x44c > [c02b1cc0] [c01c1efc] tcp_v4_rcv+0x998/0xa58 > [c02b1d10] [c01a3d48] ip_local_deliver+0x1f8/0x320 > [c02b1d40] [c01a4450] ip_rcv+0x298/0x598 > [c02b1d70] [c0185828] netif_receive_skb+0x2d0/0x334 > [c02b1da0] [c01583e4] emac_poll_rx+0x140/0x724 > [c02b1df0] [c0155c50] mal_poll+0xa8/0x26c > [c02b1e30] [c0185a88] net_rx_action+0x88/0x15c > [c02b1e60] [c001facc] __do_softirq+0x78/0xd4 > [c02b1e90] [c0006d50] do_softirq+0x54/0x5c > [c02b1ea0] [c001fb9c] irq_exit+0x60/0x80 > [c02b1eb0] [c0006cac] do_IRQ+0x68/0xb8 > [c02b1ec0] [c000201c] ret_from_except+0x0/0x18 > [c02b1f80] [c0009eb4] cpu_idle+0xe8/0xf8 > [c02b1fa0] [c0205278] rest_init+0x74/0x88 > [c02b1fc0] [c02b2724] start_kernel+0x250/0x2b4 > [c02b1ff0] [c00001e8] skpinv+0x190/0x1cc > Instruction dump: > 80010014 38210010 7c0803a6 4e800020 8163000c 4bffffb0 7c0802a6 9421ffe0 > bfa10014 39230004 90010024 7c7f1b78 <80030000> 700a4000 4082013c 7c004828 > Kernel panic - not syncing: Aiee, killing interrupt handler! > Rebooting in 180 seconds.. hm, it's hard to tell if this is a net problem, a driver problem or an NFS problem or what. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org 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