* ftp server crashes on heavy load: possible scheduler bug
@ 2005-04-26 13:02 Pedro Venda (SYSADM)
2005-04-27 18:16 ` Francois Romieu
` (2 more replies)
0 siblings, 3 replies; 12+ messages in thread
From: Pedro Venda (SYSADM) @ 2005-04-26 13:02 UTC (permalink / raw)
To: linux-kernel; +Cc: rnl
[-- Attachment #1.1: Type: text/plain, Size: 15542 bytes --]
hi everyone,
We've made some changes on our ftp server, and since that it's been crashing
frequently (everyday) with a kernel panic.
We've configured the 5 IDE 160GB drives into md raid5 arrays with LVM on top
of that. All filesystems are reiserfs. The other change we made to the server
was changing from a patched 2.6.10-ac12 kernel into a newer 2.6.11.7.
Not being able to see the whole stacktrace on screen, we've started a
netconsole to investigate. Started the server and loaded it pretty bad with
rsyncs and such... until it crashed after just 20 minutes.
The netconsole log was surprising - "kernel BUG at kernel/sched.c:2634!"
Any help would be GREATLY appreciated.
information is also attached:
netconsole crashdump: ftp.crashdump.log
ver_linux script output: ftp.ver_linux.out
kernel configuration: ftp.kernelconfig
netconsole crashdump:
------------[ cut here ]------------
kernel BUG at kernel/sched.c:2634!
invalid operand: 0000 [#1]
PREEMPT
CPU: 0
EIP: 0060:[<c0112938>] Not tainted VLI
EFLAGS: 00010082 (2.6.11.7)
EIP is at add_preempt_count+0x28/0x40
eax: b8a4168c ebx: c33f217c ecx: 00000001 edx: c33f2000
esi: c03cda55 edi: c0103480 ebp: c33f2070 esp: c33f2070
ds: 007b es: 007b ss: 0068
Recursive die() failure, output suppressed
<1>Unable to handle kernel paging request at virtual address 322f2e9a
printing eip:
c010dc01
*pde = 00000000
Oops: 0000 [#2]
PREEMPT
CPU: 0
EIP: 0060:[<c010dc01>] Not tainted VLI
EFLAGS: 00010002 (2.6.11.7)
EIP is at do_page_fault+0xa1/0x5d5
eax: c04db000 ebx: 0000000b ecx: 0000000d edx: 00030001
esi: 0000000e edi: c03cea74 ebp: 322f2e2e esp: c04db0fc
ds: 007b es: 007b ss: 0068
Process pure-ftpd (pid: 2792, threadinfo=c04da000 task=cc8c2520)
Stack: c04d804c 0000000d c04db11c 00000000 00000000 322f2e9a 00000000 c04db1d0
c04db1d0 c03cea74 00000000 0000000e 0000000b 00000000 00000000 00000000
00000000 00000000 00030001 00000000 00000000 00000000 00000000 00000000
Call Trace:
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c0111c78>] recalc_task_prio+0x88/0x150
[<c0111e7a>] try_to_wake_up+0x8a/0xc0
[<c0111c78>] recalc_task_prio+0x88/0x150
[<c0111c78>] recalc_task_prio+0x88/0x150
[<c0111da2>] activate_task+0x62/0x80
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c012007b>] __exit_signal+0xfb/0x160
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c022efd2>] __delay+0x12/0x20
[<c02bd7d0>] ide_dma_intr+0x0/0xb0
[<c02b7bef>] ide_execute_command+0xaf/0xe0
[<c02bdea3>] ide_dma_exec_cmd+0x33/0x40
[<c02bdee5>] ide_dma_start+0x35/0x50
[<c02bfcd1>] __ide_do_rw_disk+0x311/0x5d0
[<c022efd2>] __delay+0x12/0x20
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c012ab3f>] autoremove_wake_function+0x2f/0x60
[<c01129f1>] __wake_up_common+0x41/0x70
[<c0111c78>] recalc_task_prio+0x88/0x150
[<c0111da2>] activate_task+0x62/0x80
[<c0111e7a>] try_to_wake_up+0x8a/0xc0
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c0135f3d>] mempool_free+0xbd/0xe0
[<c029468c>] as_put_request+0x7c/0xd0
[<c028ceac>] __freed_request+0x9c/0xb0
[<c028cee9>] freed_request+0x29/0xa0
[<c028ecd1>] end_that_request_last+0x61/0xd0
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c0112515>] account_system_time+0x15/0xf0
[<c011f13a>] update_process_times+0x10a/0x110
[<c0106c85>] timer_interrupt+0x45/0x110
[<c0130dd0>] handle_IRQ_event+0x30/0x70
[<c0130eec>] __do_IRQ+0xdc/0x160
[<c01042f7>] do_IRQ+0x47/0x70
=======================
[<c0103480>] do_invalid_op+0x0/0xd0
[<c01028be>] common_interrupt+0x1a/0x20
[<c0103480>] do_invalid_op+0x0/0xd0
[<c0103030>] die+0x110/0x190
[<c010e696>] fixup_exception+0x16/0x40
[<c0112938>] add_preempt_count+0x28/0x40
[<c0103193>] do_trap+0xe3/0x120
[<c0103532>] do_invalid_op+0xb2/0xd0
[<c0112938>] add_preempt_count+0x28/0x40
[<c01028f7>] error_code+0x2b/0x30
[<c0103480>] do_invalid_op+0x0/0xd0
=======================
Unable to handle kernel paging request at virtual address 312d6572
printing eip:
c0102b8e
*pde = 00000000
Oops: 0000 [#3]
PREEMPT
CPU: 0
EIP: 0060:[<c0102b8e>] Not tainted VLI
EFLAGS: 00010093 (2.6.11.7)
EIP is at show_trace+0x2e/0x90
eax: 312d6ffd ebx: 312d6572 ecx: 00000000 edx: 00000001
esi: 312d6572 edi: 312d6000 ebp: 00000001 esp: c04daf58
ds: 007b es: 007b ss: 0068
Process pure-ftpd (pid: 2792, threadinfo=c04da000 task=cc8c2520)
Stack: c03cd965 c0103480 c04db15c 00000018 00000000 c0102c70 00000000 c04db0fc
c04db0fc c04db0c8 00000000 c0102df8 00000000 c04db0fc 00000ae8 c04da000
cc8c2520 00010002 c0414402 c04db0c8 c03cead6 c03cea74 cc8c2520 c0103014
Call Trace:
[<c0103480>] do_invalid_op+0x0/0xd0
[<c0102c70>] show_stack+0x80/0xa0
[<c0102df8>] show_registers+0x148/0x1b0
[<c0103014>] die+0xf4/0x190
[<c01162d7>] printk+0x17/0x20
[<c010de3a>] do_page_fault+0x2da/0x5d5
=======================
[<c013229d>] add_to_page_cache+0xad/0xd0
[<c0177ae1>] mpage_readpages+0x131/0x160
[<c0193f30>] reiserfs_get_block+0x0/0x14e0
[<c0136bf1>] __rmqueue+0xb1/0xf0
[<c0136c5e>] rmqueue_bulk+0x2e/0x90
[<c0136b30>] prep_new_page+0x60/0x70
[<c01399f2>] read_pages+0x132/0x140
[<c0193f30>] reiserfs_get_block+0x0/0x14e0
[<c0137573>] __alloc_pages+0x2e3/0x420
[<c0139b07>] __do_page_cache_readahead+0x107/0x190
[<c0133a2f>] filemap_nopage+0x2ff/0x3e0
[<c01427ef>](chunking)
ver_linux script output:
ftp scripts # ./ver_linux
If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.
Linux ftp 2.6.11.7 #4 Tue Apr 26 10:53:58 WEST 2005 i686 Intel(R) Pentium(R) 4
CPU 2.00GHz GenuineIntel GNU/Linux
Gnu C 3.3.5-20050130
Gnu make 3.80
binutils 2.15.92.0.2
util-linux 2.12i
mount 2.12i
module-init-tools 3.0
e2fsprogs 1.35
reiserfsprogs 3.6.19
reiser4progs line
Linux C Library 2.3.4
Dynamic linker (ldd) 2.3.4
Procps 3.2.4
Net-tools 1.60
Kbd 1.12
Sh-utils 5.2.1
udev 045
ftp scripts #
kernel configuration:
CONFIG_X86=y
CONFIG_MMU=y
CONFIG_UID16=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_IOMAP=y
CONFIG_EXPERIMENTAL=y
CONFIG_CLEAN_COMPILE=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_LOCK_KERNEL=y
CONFIG_LOCALVERSION=""
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_SYSCTL=y
CONFIG_AUDIT=y
CONFIG_AUDITSYSCALL=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_HOTPLUG=y
CONFIG_KOBJECT_UEVENT=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_KALLSYMS=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SHMEM=y
CONFIG_CC_ALIGN_FUNCTIONS=0
CONFIG_CC_ALIGN_LABELS=0
CONFIG_CC_ALIGN_LOOPS=0
CONFIG_CC_ALIGN_JUMPS=0
CONFIG_X86_PC=y
CONFIG_MPENTIUM4=y
CONFIG_X86_CMPXCHG=y
CONFIG_X86_XADD=y
CONFIG_X86_L1_CACHE_SHIFT=7
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_BSWAP=y
CONFIG_X86_POPAD_OK=y
CONFIG_X86_GOOD_APIC=y
CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_PREEMPT=y
CONFIG_PREEMPT_BKL=y
CONFIG_X86_TSC=y
CONFIG_X86_MCE=y
CONFIG_X86_MCE_NONFATAL=y
CONFIG_NOHIGHMEM=y
CONFIG_MTRR=y
CONFIG_HAVE_DEC_LOCK=y
CONFIG_PM=y
CONFIG_ACPI=y
CONFIG_ACPI_BOOT=y
CONFIG_ACPI_INTERPRETER=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_BLACKLIST_YEAR=0
CONFIG_ACPI_BUS=y
CONFIG_ACPI_EC=y
CONFIG_ACPI_POWER=y
CONFIG_ACPI_PCI=y
CONFIG_ACPI_SYSTEM=y
CONFIG_PCI=y
CONFIG_PCI_GOANY=y
CONFIG_PCI_BIOS=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_PCI_LEGACY_PROC=y
CONFIG_PCI_NAMES=y
CONFIG_ISA=y
CONFIG_PCMCIA_PROBE=y
CONFIG_BINFMT_ELF=y
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_PNP=y
CONFIG_PNPACPI=y
CONFIG_BLK_DEV_FD=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_INITRAMFS_SOURCE=""
CONFIG_LBD=y
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
CONFIG_IDE=y
CONFIG_BLK_DEV_IDE=y
CONFIG_BLK_DEV_IDEDISK=y
CONFIG_IDEDISK_MULTI_MODE=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_IDE_GENERIC=y
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_SHARE_IRQ=y
CONFIG_BLK_DEV_GENERIC=y
CONFIG_BLK_DEV_IDEDMA_PCI=y
CONFIG_IDEDMA_PCI_AUTO=y
CONFIG_BLK_DEV_PIIX=y
CONFIG_BLK_DEV_PDC202XX_NEW=y
CONFIG_BLK_DEV_SIS5513=y
CONFIG_BLK_DEV_IDEDMA=y
CONFIG_IDEDMA_AUTO=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_RAID1=y
CONFIG_MD_RAID5=y
CONFIG_BLK_DEV_DM=y
CONFIG_DM_CRYPT=y
CONFIG_DM_SNAPSHOT=y
CONFIG_DM_MIRROR=y
CONFIG_DM_ZERO=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_TCPDIAG=y
CONFIG_IP_TCPDIAG_IPV6=y
CONFIG_IPV6=y
CONFIG_IPV6_PRIVACY=y
CONFIG_INET6_AH=y
CONFIG_INET6_ESP=y
CONFIG_INET6_IPCOMP=y
CONFIG_INET6_TUNNEL=y
CONFIG_IPV6_TUNNEL=y
CONFIG_NETFILTER=y
CONFIG_IP_NF_CONNTRACK=y
CONFIG_IP_NF_CT_ACCT=y
CONFIG_IP_NF_CONNTRACK_MARK=y
CONFIG_IP_NF_CT_PROTO_SCTP=y
CONFIG_IP_NF_FTP=y
CONFIG_IP_NF_IRC=y
CONFIG_IP_NF_TFTP=y
CONFIG_IP_NF_AMANDA=y
CONFIG_IP_NF_QUEUE=y
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_MATCH_LIMIT=y
CONFIG_IP_NF_MATCH_IPRANGE=y
CONFIG_IP_NF_MATCH_MAC=y
CONFIG_IP_NF_MATCH_PKTTYPE=y
CONFIG_IP_NF_MATCH_MARK=y
CONFIG_IP_NF_MATCH_MULTIPORT=y
CONFIG_IP_NF_MATCH_TOS=y
CONFIG_IP_NF_MATCH_RECENT=y
CONFIG_IP_NF_MATCH_ECN=y
CONFIG_IP_NF_MATCH_DSCP=y
CONFIG_IP_NF_MATCH_AH_ESP=y
CONFIG_IP_NF_MATCH_LENGTH=y
CONFIG_IP_NF_MATCH_TTL=y
CONFIG_IP_NF_MATCH_TCPMSS=y
CONFIG_IP_NF_MATCH_HELPER=y
CONFIG_IP_NF_MATCH_STATE=y
CONFIG_IP_NF_MATCH_CONNTRACK=y
CONFIG_IP_NF_MATCH_OWNER=y
CONFIG_IP_NF_MATCH_ADDRTYPE=y
CONFIG_IP_NF_MATCH_REALM=y
CONFIG_IP_NF_MATCH_SCTP=y
CONFIG_IP_NF_MATCH_COMMENT=y
CONFIG_IP_NF_MATCH_CONNMARK=y
CONFIG_IP_NF_MATCH_HASHLIMIT=y
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_TARGET_REJECT=y
CONFIG_IP_NF_TARGET_LOG=y
CONFIG_IP_NF_TARGET_ULOG=y
CONFIG_IP_NF_TARGET_TCPMSS=y
CONFIG_IP_NF_NAT=y
CONFIG_IP_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=y
CONFIG_IP_NF_TARGET_REDIRECT=y
CONFIG_IP_NF_TARGET_NETMAP=y
CONFIG_IP_NF_TARGET_SAME=y
CONFIG_IP_NF_NAT_SNMP_BASIC=y
CONFIG_IP_NF_NAT_IRC=y
CONFIG_IP_NF_NAT_FTP=y
CONFIG_IP_NF_NAT_TFTP=y
CONFIG_IP_NF_NAT_AMANDA=y
CONFIG_IP_NF_MANGLE=y
CONFIG_IP_NF_TARGET_TOS=y
CONFIG_IP_NF_TARGET_ECN=y
CONFIG_IP_NF_TARGET_DSCP=y
CONFIG_IP_NF_TARGET_MARK=y
CONFIG_IP_NF_TARGET_CLASSIFY=y
CONFIG_IP_NF_TARGET_CONNMARK=y
CONFIG_IP_NF_TARGET_CLUSTERIP=y
CONFIG_IP_NF_RAW=y
CONFIG_IP_NF_TARGET_NOTRACK=y
CONFIG_IP_NF_ARPTABLES=y
CONFIG_IP_NF_ARPFILTER=y
CONFIG_IP_NF_ARP_MANGLE=y
CONFIG_IP6_NF_QUEUE=y
CONFIG_IP6_NF_IPTABLES=y
CONFIG_IP6_NF_MATCH_LIMIT=y
CONFIG_IP6_NF_MATCH_MAC=y
CONFIG_IP6_NF_MATCH_RT=y
CONFIG_IP6_NF_MATCH_OPTS=y
CONFIG_IP6_NF_MATCH_FRAG=y
CONFIG_IP6_NF_MATCH_HL=y
CONFIG_IP6_NF_MATCH_MULTIPORT=y
CONFIG_IP6_NF_MATCH_OWNER=y
CONFIG_IP6_NF_MATCH_MARK=y
CONFIG_IP6_NF_MATCH_IPV6HEADER=y
CONFIG_IP6_NF_MATCH_AHESP=y
CONFIG_IP6_NF_MATCH_LENGTH=y
CONFIG_IP6_NF_MATCH_EUI64=y
CONFIG_IP6_NF_FILTER=y
CONFIG_IP6_NF_TARGET_LOG=y
CONFIG_IP6_NF_MANGLE=y
CONFIG_IP6_NF_TARGET_MARK=y
CONFIG_IP6_NF_RAW=y
CONFIG_XFRM=y
CONFIG_NET_CLS_ROUTE=y
CONFIG_NETPOLL=y
CONFIG_NET_POLL_CONTROLLER=y
CONFIG_NETDEVICES=y
CONFIG_DUMMY=y
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
CONFIG_NET_VENDOR_3COM=y
CONFIG_EL3=y
CONFIG_NET_TULIP=y
CONFIG_NET_PCI=y
CONFIG_E100=y
CONFIG_8139CP=y
CONFIG_8139TOO=y
CONFIG_8139TOO_PIO=y
CONFIG_NETCONSOLE=y
CONFIG_INPUT=y
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
CONFIG_SOUND_GAMEPORT=y
CONFIG_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_LIBPS2=y
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_CORE=y
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
CONFIG_HW_RANDOM=y
CONFIG_NVRAM=y
CONFIG_RTC=y
CONFIG_HPET=y
CONFIG_HPET_RTC_IRQ=y
CONFIG_HPET_MMAP=y
CONFIG_HANGCHECK_TIMER=y
CONFIG_VGA_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_EXT2_FS=y
CONFIG_REISERFS_FS=y
CONFIG_REISERFS_PROC_INFO=y
CONFIG_REISERFS_FS_XATTR=y
CONFIG_REISERFS_FS_POSIX_ACL=y
CONFIG_FS_POSIX_ACL=y
CONFIG_DNOTIFY=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_ZISOFS_FS=y
CONFIG_UDF_FS=y
CONFIG_UDF_NLS=y
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_SYSFS=y
CONFIG_DEVFS_FS=y
CONFIG_DEVFS_MOUNT=y
CONFIG_TMPFS=y
CONFIG_RAMFS=y
CONFIG_CIFS=y
CONFIG_CIFS_STATS=y
CONFIG_MSDOS_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_860=y
CONFIG_NLS_ISO8859_1=y
CONFIG_DEBUG_PREEMPT=y
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_EARLY_PRINTK=y
CONFIG_4KSTACKS=y
CONFIG_CRYPTO=y
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_MD4=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_WP512=y
CONFIG_CRYPTO_DES=y
CONFIG_CRYPTO_BLOWFISH=y
CONFIG_CRYPTO_TWOFISH=y
CONFIG_CRYPTO_SERPENT=y
CONFIG_CRYPTO_AES_586=y
CONFIG_CRYPTO_CAST5=y
CONFIG_CRYPTO_CAST6=y
CONFIG_CRYPTO_TEA=y
CONFIG_CRYPTO_ARC4=y
CONFIG_CRYPTO_KHAZAD=y
CONFIG_CRYPTO_ANUBIS=y
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_MICHAEL_MIC=y
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_TEST=y
CONFIG_CRC_CCITT=y
CONFIG_CRC32=y
CONFIG_LIBCRC32C=y
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_X86_BIOS_REBOOT=y
CONFIG_PC=y
--
Pedro João Lopes Venda
email: pjvenda < at > rnl.ist.utl.pt
http://maxwell.rnl.ist.utl.pt
Equipa de Administração de Sistemas
Rede das Novas Licenciaturas (RNL)
Instituto Superior Técnico
http://www.rnl.ist.utl.pt
http://mega.ist.utl.pt
[-- Attachment #1.2: ftp.crashdump.log --]
[-- Type: text/x-log, Size: 5890 bytes --]
------------[ cut here ]------------
kernel BUG at kernel/sched.c:2634!
invalid operand: 0000 [#1]
PREEMPT
CPU: 0
EIP: 0060:[<c0112938>] Not tainted VLI
EFLAGS: 00010082 (2.6.11.7)
EIP is at add_preempt_count+0x28/0x40
eax: b8a4168c ebx: c33f217c ecx: 00000001 edx: c33f2000
esi: c03cda55 edi: c0103480 ebp: c33f2070 esp: c33f2070
ds: 007b es: 007b ss: 0068
Recursive die() failure, output suppressed
<1>Unable to handle kernel paging request at virtual address 322f2e9a
printing eip:
c010dc01
*pde = 00000000
Oops: 0000 [#2]
PREEMPT
CPU: 0
EIP: 0060:[<c010dc01>] Not tainted VLI
EFLAGS: 00010002 (2.6.11.7)
EIP is at do_page_fault+0xa1/0x5d5
eax: c04db000 ebx: 0000000b ecx: 0000000d edx: 00030001
esi: 0000000e edi: c03cea74 ebp: 322f2e2e esp: c04db0fc
ds: 007b es: 007b ss: 0068
Process pure-ftpd (pid: 2792, threadinfo=c04da000 task=cc8c2520)
Stack: c04d804c 0000000d c04db11c 00000000 00000000 322f2e9a 00000000 c04db1d0
c04db1d0 c03cea74 00000000 0000000e 0000000b 00000000 00000000 00000000
00000000 00000000 00030001 00000000 00000000 00000000 00000000 00000000
Call Trace:
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c0111c78>] recalc_task_prio+0x88/0x150
[<c0111e7a>] try_to_wake_up+0x8a/0xc0
[<c0111c78>] recalc_task_prio+0x88/0x150
[<c0111c78>] recalc_task_prio+0x88/0x150
[<c0111da2>] activate_task+0x62/0x80
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c012007b>] __exit_signal+0xfb/0x160
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c022efd2>] __delay+0x12/0x20
[<c02bd7d0>] ide_dma_intr+0x0/0xb0
[<c02b7bef>] ide_execute_command+0xaf/0xe0
[<c02bdea3>] ide_dma_exec_cmd+0x33/0x40
[<c02bdee5>] ide_dma_start+0x35/0x50
[<c02bfcd1>] __ide_do_rw_disk+0x311/0x5d0
[<c022efd2>] __delay+0x12/0x20
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c012ab3f>] autoremove_wake_function+0x2f/0x60
[<c01129f1>] __wake_up_common+0x41/0x70
[<c0111c78>] recalc_task_prio+0x88/0x150
[<c0111da2>] activate_task+0x62/0x80
[<c0111e7a>] try_to_wake_up+0x8a/0xc0
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c010dc01>] do_page_fault+0xa1/0x5d5
[<c0135f3d>] mempool_free+0xbd/0xe0
[<c029468c>] as_put_request+0x7c/0xd0
[<c028ceac>] __freed_request+0x9c/0xb0
[<c028cee9>] freed_request+0x29/0xa0
[<c028ecd1>] end_that_request_last+0x61/0xd0
[<c010db60>] do_page_fault+0x0/0x5d5
[<c01028f7>] error_code+0x2b/0x30
[<c0112515>] account_system_time+0x15/0xf0
[<c011f13a>] update_process_times+0x10a/0x110
[<c0106c85>] timer_interrupt+0x45/0x110
[<c0130dd0>] handle_IRQ_event+0x30/0x70
[<c0130eec>] __do_IRQ+0xdc/0x160
[<c01042f7>] do_IRQ+0x47/0x70
=======================
[<c0103480>] do_invalid_op+0x0/0xd0
[<c01028be>] common_interrupt+0x1a/0x20
[<c0103480>] do_invalid_op+0x0/0xd0
[<c0103030>] die+0x110/0x190
[<c010e696>] fixup_exception+0x16/0x40
[<c0112938>] add_preempt_count+0x28/0x40
[<c0103193>] do_trap+0xe3/0x120
[<c0103532>] do_invalid_op+0xb2/0xd0
[<c0112938>] add_preempt_count+0x28/0x40
[<c01028f7>] error_code+0x2b/0x30
[<c0103480>] do_invalid_op+0x0/0xd0
=======================
Unable to handle kernel paging request at virtual address 312d6572
printing eip:
c0102b8e
*pde = 00000000
Oops: 0000 [#3]
PREEMPT
CPU: 0
EIP: 0060:[<c0102b8e>] Not tainted VLI
EFLAGS: 00010093 (2.6.11.7)
EIP is at show_trace+0x2e/0x90
eax: 312d6ffd ebx: 312d6572 ecx: 00000000 edx: 00000001
esi: 312d6572 edi: 312d6000 ebp: 00000001 esp: c04daf58
ds: 007b es: 007b ss: 0068
Process pure-ftpd (pid: 2792, threadinfo=c04da000 task=cc8c2520)
Stack: c03cd965 c0103480 c04db15c 00000018 00000000 c0102c70 00000000 c04db0fc
c04db0fc c04db0c8 00000000 c0102df8 00000000 c04db0fc 00000ae8 c04da000
cc8c2520 00010002 c0414402 c04db0c8 c03cead6 c03cea74 cc8c2520 c0103014
Call Trace:
[<c0103480>] do_invalid_op+0x0/0xd0
[<c0102c70>] show_stack+0x80/0xa0
[<c0102df8>] show_registers+0x148/0x1b0
[<c0103014>] die+0xf4/0x190
[<c01162d7>] printk+0x17/0x20
[<c010de3a>] do_page_fault+0x2da/0x5d5
=======================
[<c013229d>] add_to_page_cache+0xad/0xd0
[<c0177ae1>] mpage_readpages+0x131/0x160
[<c0193f30>] reiserfs_get_block+0x0/0x14e0
[<c0136bf1>] __rmqueue+0xb1/0xf0
[<c0136c5e>] rmqueue_bulk+0x2e/0x90
[<c0136b30>] prep_new_page+0x60/0x70
[<c01399f2>] read_pages+0x132/0x140
[<c0193f30>] reiserfs_get_block+0x0/0x14e0
[<c0137573>] __alloc_pages+0x2e3/0x420
[<c0139b07>] __do_page_cache_readahead+0x107/0x190
[<c0133a2f>] filemap_nopage+0x2ff/0x3e0
[<c01427ef>](chunking)
[-- Attachment #1.3: ftp.ver_linux.out --]
[-- Type: text/plain, Size: 828 bytes --]
ftp scripts # ./ver_linux
If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.
Linux ftp 2.6.11.7 #4 Tue Apr 26 10:53:58 WEST 2005 i686 Intel(R) Pentium(R) 4 CPU 2.00GHz GenuineIntel GNU/Linux
Gnu C 3.3.5-20050130
Gnu make 3.80
binutils 2.15.92.0.2
util-linux 2.12i
mount 2.12i
module-init-tools 3.0
e2fsprogs 1.35
reiserfsprogs 3.6.19
reiser4progs line
Linux C Library 2.3.4
Dynamic linker (ldd) 2.3.4
Procps 3.2.4
Net-tools 1.60
Kbd 1.12
Sh-utils 5.2.1
udev 045
ftp scripts #
[-- Attachment #1.4: ftp.kernelconfig --]
[-- Type: text/plain, Size: 21540 bytes --]
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.11.7
# Tue Apr 26 10:44:39 2005
#
CONFIG_X86=y
CONFIG_MMU=y
CONFIG_UID16=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_IOMAP=y
#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y
CONFIG_CLEAN_COMPILE=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_LOCK_KERNEL=y
#
# General setup
#
CONFIG_LOCALVERSION=""
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_SYSCTL=y
CONFIG_AUDIT=y
CONFIG_AUDITSYSCALL=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_HOTPLUG=y
CONFIG_KOBJECT_UEVENT=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
# CONFIG_EMBEDDED is not set
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_FUTEX=y
CONFIG_EPOLL=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SHMEM=y
CONFIG_CC_ALIGN_FUNCTIONS=0
CONFIG_CC_ALIGN_LABELS=0
CONFIG_CC_ALIGN_LOOPS=0
CONFIG_CC_ALIGN_JUMPS=0
# CONFIG_TINY_SHMEM is not set
#
# Loadable module support
#
# CONFIG_MODULES is not set
#
# Processor type and features
#
CONFIG_X86_PC=y
# CONFIG_X86_ELAN is not set
# CONFIG_X86_VOYAGER is not set
# CONFIG_X86_NUMAQ is not set
# CONFIG_X86_SUMMIT is not set
# CONFIG_X86_BIGSMP is not set
# CONFIG_X86_VISWS is not set
# CONFIG_X86_GENERICARCH is not set
# CONFIG_X86_ES7000 is not set
# CONFIG_M386 is not set
# CONFIG_M486 is not set
# CONFIG_M586 is not set
# CONFIG_M586TSC is not set
# CONFIG_M586MMX is not set
# CONFIG_M686 is not set
# CONFIG_MPENTIUMII is not set
# CONFIG_MPENTIUMIII is not set
# CONFIG_MPENTIUMM is not set
CONFIG_MPENTIUM4=y
# CONFIG_MK6 is not set
# CONFIG_MK7 is not set
# CONFIG_MK8 is not set
# CONFIG_MCRUSOE is not set
# CONFIG_MEFFICEON is not set
# CONFIG_MWINCHIPC6 is not set
# CONFIG_MWINCHIP2 is not set
# CONFIG_MWINCHIP3D is not set
# CONFIG_MCYRIXIII is not set
# CONFIG_MVIAC3_2 is not set
# CONFIG_X86_GENERIC is not set
CONFIG_X86_CMPXCHG=y
CONFIG_X86_XADD=y
CONFIG_X86_L1_CACHE_SHIFT=7
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_BSWAP=y
CONFIG_X86_POPAD_OK=y
CONFIG_X86_GOOD_APIC=y
CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
# CONFIG_HPET_TIMER is not set
# CONFIG_SMP is not set
CONFIG_PREEMPT=y
CONFIG_PREEMPT_BKL=y
# CONFIG_X86_UP_APIC is not set
CONFIG_X86_TSC=y
CONFIG_X86_MCE=y
CONFIG_X86_MCE_NONFATAL=y
# CONFIG_TOSHIBA is not set
# CONFIG_I8K is not set
# CONFIG_MICROCODE is not set
# CONFIG_X86_MSR is not set
# CONFIG_X86_CPUID is not set
#
# Firmware Drivers
#
# CONFIG_EDD is not set
CONFIG_NOHIGHMEM=y
# CONFIG_HIGHMEM4G is not set
# CONFIG_HIGHMEM64G is not set
# CONFIG_MATH_EMULATION is not set
CONFIG_MTRR=y
# CONFIG_EFI is not set
CONFIG_HAVE_DEC_LOCK=y
# CONFIG_REGPARM is not set
#
# Power management options (ACPI, APM)
#
CONFIG_PM=y
# CONFIG_PM_DEBUG is not set
# CONFIG_SOFTWARE_SUSPEND is not set
#
# ACPI (Advanced Configuration and Power Interface) Support
#
CONFIG_ACPI=y
CONFIG_ACPI_BOOT=y
CONFIG_ACPI_INTERPRETER=y
# CONFIG_ACPI_SLEEP is not set
# CONFIG_ACPI_AC is not set
# CONFIG_ACPI_BATTERY is not set
CONFIG_ACPI_BUTTON=y
# CONFIG_ACPI_VIDEO is not set
# CONFIG_ACPI_FAN is not set
# CONFIG_ACPI_PROCESSOR is not set
# CONFIG_ACPI_ASUS is not set
# CONFIG_ACPI_IBM is not set
# CONFIG_ACPI_TOSHIBA is not set
CONFIG_ACPI_BLACKLIST_YEAR=0
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_BUS=y
CONFIG_ACPI_EC=y
CONFIG_ACPI_POWER=y
CONFIG_ACPI_PCI=y
CONFIG_ACPI_SYSTEM=y
# CONFIG_X86_PM_TIMER is not set
# CONFIG_ACPI_CONTAINER is not set
#
# APM (Advanced Power Management) BIOS Support
#
# CONFIG_APM is not set
#
# CPU Frequency scaling
#
# CONFIG_CPU_FREQ is not set
#
# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
#
CONFIG_PCI=y
# CONFIG_PCI_GOBIOS is not set
# CONFIG_PCI_GOMMCONFIG is not set
# CONFIG_PCI_GODIRECT is not set
CONFIG_PCI_GOANY=y
CONFIG_PCI_BIOS=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
# CONFIG_PCIEPORTBUS is not set
CONFIG_PCI_LEGACY_PROC=y
CONFIG_PCI_NAMES=y
CONFIG_ISA=y
# CONFIG_EISA is not set
# CONFIG_MCA is not set
# CONFIG_SCx200 is not set
#
# PCCARD (PCMCIA/CardBus) support
#
# CONFIG_PCCARD is not set
#
# PC-card bridges
#
CONFIG_PCMCIA_PROBE=y
#
# PCI Hotplug Support
#
# CONFIG_HOTPLUG_PCI is not set
#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_AOUT is not set
# CONFIG_BINFMT_MISC is not set
#
# Device Drivers
#
#
# Generic Driver Options
#
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
#
# Memory Technology Devices (MTD)
#
# CONFIG_MTD is not set
#
# Parallel port support
#
# CONFIG_PARPORT is not set
#
# Plug and Play support
#
CONFIG_PNP=y
# CONFIG_PNP_DEBUG is not set
#
# Protocols
#
# CONFIG_ISAPNP is not set
# CONFIG_PNPBIOS is not set
CONFIG_PNPACPI=y
#
# Block devices
#
CONFIG_BLK_DEV_FD=y
# CONFIG_BLK_DEV_XD is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=y
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_RAM is not set
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_INITRAMFS_SOURCE=""
CONFIG_LBD=y
# CONFIG_CDROM_PKTCDVD is not set
#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_ATA_OVER_ETH is not set
#
# ATA/ATAPI/MFM/RLL support
#
CONFIG_IDE=y
CONFIG_BLK_DEV_IDE=y
#
# Please see Documentation/ide.txt for help/info on IDE drives
#
# CONFIG_BLK_DEV_IDE_SATA is not set
# CONFIG_BLK_DEV_HD_IDE is not set
CONFIG_BLK_DEV_IDEDISK=y
CONFIG_IDEDISK_MULTI_MODE=y
CONFIG_BLK_DEV_IDECD=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDEFLOPPY is not set
# CONFIG_IDE_TASK_IOCTL is not set
#
# IDE chipset support/bugfixes
#
CONFIG_IDE_GENERIC=y
# CONFIG_BLK_DEV_CMD640 is not set
# CONFIG_BLK_DEV_IDEPNP is not set
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_SHARE_IRQ=y
# CONFIG_BLK_DEV_OFFBOARD is not set
CONFIG_BLK_DEV_GENERIC=y
# CONFIG_BLK_DEV_OPTI621 is not set
# CONFIG_BLK_DEV_RZ1000 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_IDEDMA_FORCED is not set
CONFIG_IDEDMA_PCI_AUTO=y
# CONFIG_IDEDMA_ONLYDISK is not set
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_ATIIXP is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CY82C693 is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT34X is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_SC1200 is not set
CONFIG_BLK_DEV_PIIX=y
# CONFIG_BLK_DEV_NS87415 is not set
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
CONFIG_BLK_DEV_PDC202XX_NEW=y
# CONFIG_PDC202XX_FORCE is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set
CONFIG_BLK_DEV_SIS5513=y
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_IDE_ARM is not set
# CONFIG_IDE_CHIPSETS is not set
CONFIG_BLK_DEV_IDEDMA=y
# CONFIG_IDEDMA_IVB is not set
CONFIG_IDEDMA_AUTO=y
# CONFIG_BLK_DEV_HD is not set
#
# SCSI device support
#
# CONFIG_SCSI is not set
#
# Old CD-ROM drivers (not SCSI, not IDE)
#
# CONFIG_CD_NO_IDESCSI is not set
#
# Multi-device support (RAID and LVM)
#
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
CONFIG_MD_RAID1=y
# CONFIG_MD_RAID10 is not set
CONFIG_MD_RAID5=y
# CONFIG_MD_RAID6 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_MD_FAULTY is not set
CONFIG_BLK_DEV_DM=y
CONFIG_DM_CRYPT=y
CONFIG_DM_SNAPSHOT=y
CONFIG_DM_MIRROR=y
CONFIG_DM_ZERO=y
#
# Fusion MPT device support
#
#
# IEEE 1394 (FireWire) support
#
# CONFIG_IEEE1394 is not set
#
# I2O device support
#
# CONFIG_I2O is not set
#
# Networking support
#
CONFIG_NET=y
#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
# CONFIG_NETLINK_DEV is not set
CONFIG_UNIX=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_TUNNEL is not set
CONFIG_IP_TCPDIAG=y
CONFIG_IP_TCPDIAG_IPV6=y
#
# IP: Virtual Server Configuration
#
# CONFIG_IP_VS is not set
CONFIG_IPV6=y
CONFIG_IPV6_PRIVACY=y
CONFIG_INET6_AH=y
CONFIG_INET6_ESP=y
CONFIG_INET6_IPCOMP=y
CONFIG_INET6_TUNNEL=y
CONFIG_IPV6_TUNNEL=y
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
#
# IP: Netfilter Configuration
#
CONFIG_IP_NF_CONNTRACK=y
CONFIG_IP_NF_CT_ACCT=y
CONFIG_IP_NF_CONNTRACK_MARK=y
CONFIG_IP_NF_CT_PROTO_SCTP=y
CONFIG_IP_NF_FTP=y
CONFIG_IP_NF_IRC=y
CONFIG_IP_NF_TFTP=y
CONFIG_IP_NF_AMANDA=y
CONFIG_IP_NF_QUEUE=y
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_MATCH_LIMIT=y
CONFIG_IP_NF_MATCH_IPRANGE=y
CONFIG_IP_NF_MATCH_MAC=y
CONFIG_IP_NF_MATCH_PKTTYPE=y
CONFIG_IP_NF_MATCH_MARK=y
CONFIG_IP_NF_MATCH_MULTIPORT=y
CONFIG_IP_NF_MATCH_TOS=y
CONFIG_IP_NF_MATCH_RECENT=y
CONFIG_IP_NF_MATCH_ECN=y
CONFIG_IP_NF_MATCH_DSCP=y
CONFIG_IP_NF_MATCH_AH_ESP=y
CONFIG_IP_NF_MATCH_LENGTH=y
CONFIG_IP_NF_MATCH_TTL=y
CONFIG_IP_NF_MATCH_TCPMSS=y
CONFIG_IP_NF_MATCH_HELPER=y
CONFIG_IP_NF_MATCH_STATE=y
CONFIG_IP_NF_MATCH_CONNTRACK=y
CONFIG_IP_NF_MATCH_OWNER=y
CONFIG_IP_NF_MATCH_ADDRTYPE=y
CONFIG_IP_NF_MATCH_REALM=y
CONFIG_IP_NF_MATCH_SCTP=y
CONFIG_IP_NF_MATCH_COMMENT=y
CONFIG_IP_NF_MATCH_CONNMARK=y
CONFIG_IP_NF_MATCH_HASHLIMIT=y
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_TARGET_REJECT=y
CONFIG_IP_NF_TARGET_LOG=y
CONFIG_IP_NF_TARGET_ULOG=y
CONFIG_IP_NF_TARGET_TCPMSS=y
CONFIG_IP_NF_NAT=y
CONFIG_IP_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=y
CONFIG_IP_NF_TARGET_REDIRECT=y
CONFIG_IP_NF_TARGET_NETMAP=y
CONFIG_IP_NF_TARGET_SAME=y
CONFIG_IP_NF_NAT_SNMP_BASIC=y
CONFIG_IP_NF_NAT_IRC=y
CONFIG_IP_NF_NAT_FTP=y
CONFIG_IP_NF_NAT_TFTP=y
CONFIG_IP_NF_NAT_AMANDA=y
CONFIG_IP_NF_MANGLE=y
CONFIG_IP_NF_TARGET_TOS=y
CONFIG_IP_NF_TARGET_ECN=y
CONFIG_IP_NF_TARGET_DSCP=y
CONFIG_IP_NF_TARGET_MARK=y
CONFIG_IP_NF_TARGET_CLASSIFY=y
CONFIG_IP_NF_TARGET_CONNMARK=y
CONFIG_IP_NF_TARGET_CLUSTERIP=y
CONFIG_IP_NF_RAW=y
CONFIG_IP_NF_TARGET_NOTRACK=y
CONFIG_IP_NF_ARPTABLES=y
CONFIG_IP_NF_ARPFILTER=y
CONFIG_IP_NF_ARP_MANGLE=y
#
# IPv6: Netfilter Configuration
#
CONFIG_IP6_NF_QUEUE=y
CONFIG_IP6_NF_IPTABLES=y
CONFIG_IP6_NF_MATCH_LIMIT=y
CONFIG_IP6_NF_MATCH_MAC=y
CONFIG_IP6_NF_MATCH_RT=y
CONFIG_IP6_NF_MATCH_OPTS=y
CONFIG_IP6_NF_MATCH_FRAG=y
CONFIG_IP6_NF_MATCH_HL=y
CONFIG_IP6_NF_MATCH_MULTIPORT=y
CONFIG_IP6_NF_MATCH_OWNER=y
CONFIG_IP6_NF_MATCH_MARK=y
CONFIG_IP6_NF_MATCH_IPV6HEADER=y
CONFIG_IP6_NF_MATCH_AHESP=y
CONFIG_IP6_NF_MATCH_LENGTH=y
CONFIG_IP6_NF_MATCH_EUI64=y
CONFIG_IP6_NF_FILTER=y
CONFIG_IP6_NF_TARGET_LOG=y
CONFIG_IP6_NF_MANGLE=y
CONFIG_IP6_NF_TARGET_MARK=y
CONFIG_IP6_NF_RAW=y
CONFIG_XFRM=y
# CONFIG_XFRM_USER is not set
#
# SCTP Configuration (EXPERIMENTAL)
#
# CONFIG_IP_SCTP is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set
CONFIG_NET_CLS_ROUTE=y
#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
CONFIG_NETPOLL=y
# CONFIG_NETPOLL_RX is not set
# CONFIG_NETPOLL_TRAP is not set
CONFIG_NET_POLL_CONTROLLER=y
# CONFIG_HAMRADIO is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
CONFIG_NETDEVICES=y
CONFIG_DUMMY=y
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_NET_SB1000 is not set
#
# ARCnet devices
#
# CONFIG_ARCNET is not set
#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
CONFIG_NET_VENDOR_3COM=y
# CONFIG_EL1 is not set
# CONFIG_EL2 is not set
# CONFIG_ELPLUS is not set
# CONFIG_EL16 is not set
CONFIG_EL3=y
# CONFIG_3C515 is not set
# CONFIG_VORTEX is not set
# CONFIG_TYPHOON is not set
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL is not set
#
# Tulip family network device support
#
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
# CONFIG_TULIP is not set
# CONFIG_DE4X5 is not set
# CONFIG_WINBOND_840 is not set
# CONFIG_DM9102 is not set
# CONFIG_AT1700 is not set
# CONFIG_DEPCA is not set
# CONFIG_HP100 is not set
# CONFIG_NET_ISA is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_AMD8111_ETH is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_AC3200 is not set
# CONFIG_APRICOT is not set
# CONFIG_B44 is not set
# CONFIG_FORCEDETH is not set
# CONFIG_CS89x0 is not set
# CONFIG_DGRS is not set
# CONFIG_EEPRO100 is not set
CONFIG_E100=y
# CONFIG_E100_NAPI is not set
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
CONFIG_8139CP=y
CONFIG_8139TOO=y
CONFIG_8139TOO_PIO=y
# CONFIG_8139TOO_TUNE_TWISTER is not set
# CONFIG_8139TOO_8129 is not set
# CONFIG_8139_OLD_RX_RESET is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_NET_POCKET is not set
#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_E1000 is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_R8169 is not set
# CONFIG_SK98LIN is not set
# CONFIG_VIA_VELOCITY is not set
# CONFIG_TIGON3 is not set
#
# Ethernet (10000 Mbit)
#
# CONFIG_IXGB is not set
# CONFIG_S2IO is not set
#
# Token Ring devices
#
# CONFIG_TR is not set
#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set
#
# Wan interfaces
#
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_SHAPER is not set
CONFIG_NETCONSOLE=y
#
# ISDN subsystem
#
# CONFIG_ISDN is not set
#
# Telephony Support
#
# CONFIG_PHONE is not set
#
# Input device support
#
CONFIG_INPUT=y
#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_TSDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set
#
# Input I/O drivers
#
# CONFIG_GAMEPORT is not set
CONFIG_SOUND_GAMEPORT=y
CONFIG_SERIO=y
CONFIG_SERIO_I8042=y
# CONFIG_SERIO_SERPORT is not set
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_SERIAL_NONSTANDARD is not set
#
# Serial drivers
#
CONFIG_SERIAL_8250=y
# CONFIG_SERIAL_8250_CONSOLE is not set
# CONFIG_SERIAL_8250_ACPI is not set
CONFIG_SERIAL_8250_NR_UARTS=4
# CONFIG_SERIAL_8250_EXTENDED is not set
#
# Non-8250 serial port support
#
CONFIG_SERIAL_CORE=y
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
#
# IPMI
#
# CONFIG_IPMI_HANDLER is not set
#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_HW_RANDOM=y
CONFIG_NVRAM=y
CONFIG_RTC=y
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_SONYPI is not set
#
# Ftape, the floppy tape device driver
#
# CONFIG_FTAPE is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set
# CONFIG_MWAVE is not set
# CONFIG_RAW_DRIVER is not set
CONFIG_HPET=y
CONFIG_HPET_RTC_IRQ=y
CONFIG_HPET_MMAP=y
CONFIG_HANGCHECK_TIMER=y
#
# I2C support
#
# CONFIG_I2C is not set
#
# Dallas's 1-wire bus
#
# CONFIG_W1 is not set
#
# Misc devices
#
# CONFIG_IBM_ASM is not set
#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set
#
# Digital Video Broadcasting Devices
#
# CONFIG_DVB is not set
#
# Graphics support
#
# CONFIG_FB is not set
# CONFIG_VIDEO_SELECT is not set
#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
# CONFIG_MDA_CONSOLE is not set
CONFIG_DUMMY_CONSOLE=y
#
# Sound
#
# CONFIG_SOUND is not set
#
# USB support
#
# CONFIG_USB is not set
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
#
# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' may also be needed; see USB_STORAGE Help for more information
#
#
# USB Gadget Support
#
# CONFIG_USB_GADGET is not set
#
# MMC/SD Card support
#
# CONFIG_MMC is not set
#
# InfiniBand support
#
# CONFIG_INFINIBAND is not set
#
# File systems
#
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT3_FS is not set
# CONFIG_JBD is not set
CONFIG_REISERFS_FS=y
# CONFIG_REISERFS_CHECK is not set
CONFIG_REISERFS_PROC_INFO=y
CONFIG_REISERFS_FS_XATTR=y
CONFIG_REISERFS_FS_POSIX_ACL=y
# CONFIG_REISERFS_FS_SECURITY is not set
# CONFIG_JFS_FS is not set
CONFIG_FS_POSIX_ACL=y
#
# XFS support
#
# CONFIG_XFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_QUOTA is not set
CONFIG_DNOTIFY=y
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_ZISOFS_FS=y
CONFIG_UDF_FS=y
CONFIG_UDF_NLS=y
#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_SYSFS=y
CONFIG_DEVFS_FS=y
CONFIG_DEVFS_MOUNT=y
# CONFIG_DEVFS_DEBUG is not set
# CONFIG_DEVPTS_FS_XATTR is not set
CONFIG_TMPFS=y
# CONFIG_TMPFS_XATTR is not set
# CONFIG_HUGETLBFS is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_RAMFS=y
#
# Miscellaneous filesystems
#
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
#
# Network File Systems
#
# CONFIG_NFS_FS is not set
# CONFIG_NFSD is not set
# CONFIG_SMB_FS is not set
CONFIG_CIFS=y
CONFIG_CIFS_STATS=y
# CONFIG_CIFS_XATTR is not set
# CONFIG_CIFS_EXPERIMENTAL is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
#
# Native Language Support
#
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
# CONFIG_NLS_CODEPAGE_437 is not set
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
CONFIG_NLS_CODEPAGE_860=y
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ASCII is not set
CONFIG_NLS_ISO8859_1=y
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_UTF8 is not set
#
# Profiling support
#
# CONFIG_PROFILING is not set
#
# Kernel hacking
#
# CONFIG_DEBUG_KERNEL is not set
CONFIG_DEBUG_PREEMPT=y
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_FRAME_POINTER is not set
CONFIG_EARLY_PRINTK=y
CONFIG_4KSTACKS=y
#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set
#
# Cryptographic options
#
CONFIG_CRYPTO=y
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_MD4=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_WP512=y
CONFIG_CRYPTO_DES=y
CONFIG_CRYPTO_BLOWFISH=y
CONFIG_CRYPTO_TWOFISH=y
CONFIG_CRYPTO_SERPENT=y
CONFIG_CRYPTO_AES_586=y
CONFIG_CRYPTO_CAST5=y
CONFIG_CRYPTO_CAST6=y
CONFIG_CRYPTO_TEA=y
CONFIG_CRYPTO_ARC4=y
CONFIG_CRYPTO_KHAZAD=y
CONFIG_CRYPTO_ANUBIS=y
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_MICHAEL_MIC=y
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_TEST=y
#
# Hardware crypto devices
#
# CONFIG_CRYPTO_DEV_PADLOCK is not set
#
# Library routines
#
CONFIG_CRC_CCITT=y
CONFIG_CRC32=y
CONFIG_LIBCRC32C=y
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_X86_BIOS_REBOOT=y
CONFIG_PC=y
[-- Attachment #2: Type: application/pgp-signature, Size: 189 bytes --]
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: ftp server crashes on heavy load: possible scheduler bug
2005-04-26 13:02 ftp server crashes on heavy load: possible scheduler bug Pedro Venda (SYSADM)
@ 2005-04-27 18:16 ` Francois Romieu
2005-04-29 14:19 ` Pedro Venda (SYSADM)
2005-04-29 12:08 ` Andrew Morton
2005-04-29 12:59 ` Alexander Nyberg
2 siblings, 1 reply; 12+ messages in thread
From: Francois Romieu @ 2005-04-27 18:16 UTC (permalink / raw)
To: Pedro Venda (SYSADM); +Cc: linux-kernel, rnl
Pedro Venda (SYSADM) <pjvenda@rnl.ist.utl.pt> :
[...]
> Not being able to see the whole stacktrace on screen, we've started a
> netconsole to investigate. Started the server and loaded it pretty bad with
> rsyncs and such... until it crashed after just 20 minutes.
>
> The netconsole log was surprising - "kernel BUG at kernel/sched.c:2634!"
Is it reproducible if you disable both preempt and netconsole ?
--
Ueimor
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: ftp server crashes on heavy load: possible scheduler bug
2005-04-26 13:02 ftp server crashes on heavy load: possible scheduler bug Pedro Venda (SYSADM)
2005-04-27 18:16 ` Francois Romieu
@ 2005-04-29 12:08 ` Andrew Morton
2005-04-29 14:21 ` Pedro Venda (SYSADM)
2005-04-29 12:59 ` Alexander Nyberg
2 siblings, 1 reply; 12+ messages in thread
From: Andrew Morton @ 2005-04-29 12:08 UTC (permalink / raw)
To: Pedro Venda (SYSADM); +Cc: linux-kernel, rnl
"Pedro Venda (SYSADM)" <pjvenda@rnl.ist.utl.pt> wrote:
>
> We've made some changes on our ftp server, and since that it's been crashing
> frequently (everyday) with a kernel panic.
>
> We've configured the 5 IDE 160GB drives into md raid5 arrays with LVM on top
> of that. All filesystems are reiserfs. The other change we made to the server
> was changing from a patched 2.6.10-ac12 kernel into a newer 2.6.11.7.
>
> Not being able to see the whole stacktrace on screen, we've started a
> netconsole to investigate. Started the server and loaded it pretty bad with
> rsyncs and such... until it crashed after just 20 minutes.
>
> The netconsole log was surprising - "kernel BUG at kernel/sched.c:2634!"
Strange. It'd be interesting to try disabling CONFIG_4KSTACKS. Also,
please add this to get a bit more info.
diff -puN kernel/sched.c~a kernel/sched.c
--- 25/kernel/sched.c~a 2005-04-29 05:05:24.792004408 -0700
+++ 25-akpm/kernel/sched.c 2005-04-29 05:06:36.015176840 -0700
@@ -2631,7 +2631,12 @@ void fastcall add_preempt_count(int val)
/*
* Underflow?
*/
- BUG_ON(((int)preempt_count() < 0));
+ if ((int)preempt_count() < 0) {
+ printk("preempt_count=%d\n", preempt_count());
+ BUG();
+ }
+ if ((int)preempt_count() > 1000)
+ printk("preempt_count=%d\n", preempt_count());
preempt_count() += val;
/*
* Spinlock count overflowing soon?
_
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: ftp server crashes on heavy load: possible scheduler bug
2005-04-26 13:02 ftp server crashes on heavy load: possible scheduler bug Pedro Venda (SYSADM)
2005-04-27 18:16 ` Francois Romieu
2005-04-29 12:08 ` Andrew Morton
@ 2005-04-29 12:59 ` Alexander Nyberg
2005-04-29 13:23 ` Zwane Mwaikambo
2005-04-29 14:32 ` Pedro Venda (SYSADM)
2 siblings, 2 replies; 12+ messages in thread
From: Alexander Nyberg @ 2005-04-29 12:59 UTC (permalink / raw)
To: Pedro Venda (SYSADM); +Cc: linux-kernel, rnl
> We've made some changes on our ftp server, and since that it's been crashing
> frequently (everyday) with a kernel panic.
>
> We've configured the 5 IDE 160GB drives into md raid5 arrays with LVM on top
> of that. All filesystems are reiserfs. The other change we made to the server
> was changing from a patched 2.6.10-ac12 kernel into a newer 2.6.11.7.
>
> Not being able to see the whole stacktrace on screen, we've started a
> netconsole to investigate. Started the server and loaded it pretty bad with
> rsyncs and such... until it crashed after just 20 minutes.
>
> The netconsole log was surprising - "kernel BUG at kernel/sched.c:2634!"
>
> Any help would be GREATLY appreciated.
>
5 IDE disks into one MD raid5 into one LVM volume with reiserfs on top
of it? Could you give me some way to reproduce the specific load you put
on the machine plus your .config and I'll see what I can do.
> information is also attached:
> netconsole crashdump: ftp.crashdump.log
> ver_linux script output: ftp.ver_linux.out
> kernel configuration: ftp.kernelconfig
>
> netconsole crashdump:
> ------------[ cut here ]------------
> kernel BUG at kernel/sched.c:2634!
> invalid operand: 0000 [#1]
> PREEMPT
> CPU: 0
> EIP: 0060:[<c0112938>] Not tainted VLI
> EFLAGS: 00010082 (2.6.11.7)
> EIP is at add_preempt_count+0x28/0x40
> eax: b8a4168c ebx: c33f217c ecx: 00000001 edx: c33f2000
> esi: c03cda55 edi: c0103480 ebp: c33f2070 esp: c33f2070
> ds: 007b es: 007b ss: 0068
> Recursive die() failure, output suppressed
> <1>Unable to handle kernel paging request at virtual address 322f2e9a
> printing eip:
> c010dc01
> *pde = 00000000
> Oops: 0000 [#2]
> PREEMPT
> CPU: 0
> EIP: 0060:[<c010dc01>] Not tainted VLI
> EFLAGS: 00010002 (2.6.11.7)
> EIP is at do_page_fault+0xa1/0x5d5
> eax: c04db000 ebx: 0000000b ecx: 0000000d edx: 00030001
> esi: 0000000e edi: c03cea74 ebp: 322f2e2e esp: c04db0fc
> ds: 007b es: 007b ss: 0068
> Process pure-ftpd (pid: 2792, threadinfo=c04da000 task=cc8c2520)
> Stack: c04d804c 0000000d c04db11c 00000000 00000000 322f2e9a 00000000 c04db1d0
> c04db1d0 c03cea74 00000000 0000000e 0000000b 00000000 00000000 00000000
> 00000000 00000000 00030001 00000000 00000000 00000000 00000000 00000000
> Call Trace:
> [<c010db60>] do_page_fault+0x0/0x5d5
> [<c01028f7>] error_code+0x2b/0x30
> [<c010dc01>] do_page_fault+0xa1/0x5d5
> [<c010db60>] do_page_fault+0x0/0x5d5
> [<c01028f7>] error_code+0x2b/0x30
> [<c010dc01>] do_page_fault+0xa1/0x5d5
> [<c010db60>] do_page_fault+0x0/0x5d5
> [<c01028f7>] error_code+0x2b/0x30
> [<c010dc01>] do_page_fault+0xa1/0x5d5
> [<c010db60>] do_page_fault+0x0/0x5d5
> [<c01028f7>] error_code+0x2b/0x30
> [<c010dc01>] do_page_fault+0xa1/0x5d5
> [<c010db60>] do_page_fault+0x0/0x5d5
> [<c01028f7>] error_code+0x2b/0x30
> [<c010dc01>] do_page_fault+0xa1/0x5d5
> [<c010db60>] do_page_fault+0x0/0x5d5
> [<c01028f7>] error_code+0x2b/0x30
> [<c010dc01>] do_page_fault+0xa1/0x5d5
> [<c010db60>] do_page_fault+0x0/0x5d5
> [<c01028f7>] error_code+0x2b/0x30
> [<c010dc01>] do_page_fault+0xa1/0x5d5
> [<c010db60>] do_page_fault+0x0/0x5d5
> [<c01028f7>] error_code+0x2b/0x30
> [<c010dc01>] do_page_fault+0xa1/0x5d5
> [<c010db60>] do_page_fault+0x0/0x5d5
> [<c01028f7>] error_code+0x2b/0x30
> [<c010dc01>] do_page_fault+0xa1/0x5d5
> [<c010db60>] do_page_fault+0x0/0x5d5
> [<c01028f7>] error_code+0x2b/0x30
> [<c010dc01>] do_page_fault+0xa1/0x5d5
> [<c0111c78>] recalc_task_prio+0x88/0x150
> [<c0111e7a>] try_to_wake_up+0x8a/0xc0
> [<c0111c78>] recalc_task_prio+0x88/0x150
> [<c0111c78>] recalc_task_prio+0x88/0x150
> [<c0111da2>] activate_task+0x62/0x80
> [<c010db60>] do_page_fault+0x0/0x5d5
> [<c01028f7>] error_code+0x2b/0x30
> [<c012007b>] __exit_signal+0xfb/0x160
> [<c010dc01>] do_page_fault+0xa1/0x5d5
> [<c022efd2>] __delay+0x12/0x20
> [<c02bd7d0>] ide_dma_intr+0x0/0xb0
> [<c02b7bef>] ide_execute_command+0xaf/0xe0
> [<c02bdea3>] ide_dma_exec_cmd+0x33/0x40
> [<c02bdee5>] ide_dma_start+0x35/0x50
> [<c02bfcd1>] __ide_do_rw_disk+0x311/0x5d0
> [<c022efd2>] __delay+0x12/0x20
> [<c010db60>] do_page_fault+0x0/0x5d5
> [<c01028f7>] error_code+0x2b/0x30
> [<c010dc01>] do_page_fault+0xa1/0x5d5
> [<c012ab3f>] autoremove_wake_function+0x2f/0x60
> [<c01129f1>] __wake_up_common+0x41/0x70
> [<c0111c78>] recalc_task_prio+0x88/0x150
> [<c0111da2>] activate_task+0x62/0x80
> [<c0111e7a>] try_to_wake_up+0x8a/0xc0
> [<c010db60>] do_page_fault+0x0/0x5d5
> [<c01028f7>] error_code+0x2b/0x30
> [<c010dc01>] do_page_fault+0xa1/0x5d5
> [<c0135f3d>] mempool_free+0xbd/0xe0
> [<c029468c>] as_put_request+0x7c/0xd0
> [<c028ceac>] __freed_request+0x9c/0xb0
> [<c028cee9>] freed_request+0x29/0xa0
> [<c028ecd1>] end_that_request_last+0x61/0xd0
> [<c010db60>] do_page_fault+0x0/0x5d5
> [<c01028f7>] error_code+0x2b/0x30
> [<c0112515>] account_system_time+0x15/0xf0
> [<c011f13a>] update_process_times+0x10a/0x110
> [<c0106c85>] timer_interrupt+0x45/0x110
> [<c0130dd0>] handle_IRQ_event+0x30/0x70
> [<c0130eec>] __do_IRQ+0xdc/0x160
> [<c01042f7>] do_IRQ+0x47/0x70
> =======================
> [<c0103480>] do_invalid_op+0x0/0xd0
> [<c01028be>] common_interrupt+0x1a/0x20
> [<c0103480>] do_invalid_op+0x0/0xd0
> [<c0103030>] die+0x110/0x190
> [<c010e696>] fixup_exception+0x16/0x40
> [<c0112938>] add_preempt_count+0x28/0x40
> [<c0103193>] do_trap+0xe3/0x120
> [<c0103532>] do_invalid_op+0xb2/0xd0
> [<c0112938>] add_preempt_count+0x28/0x40
> [<c01028f7>] error_code+0x2b/0x30
> [<c0103480>] do_invalid_op+0x0/0xd0
> =======================
> Unable to handle kernel paging request at virtual address 312d6572
> printing eip:
> c0102b8e
> *pde = 00000000
> Oops: 0000 [#3]
> PREEMPT
> CPU: 0
> EIP: 0060:[<c0102b8e>] Not tainted VLI
> EFLAGS: 00010093 (2.6.11.7)
> EIP is at show_trace+0x2e/0x90
> eax: 312d6ffd ebx: 312d6572 ecx: 00000000 edx: 00000001
> esi: 312d6572 edi: 312d6000 ebp: 00000001 esp: c04daf58
> ds: 007b es: 007b ss: 0068
> Process pure-ftpd (pid: 2792, threadinfo=c04da000 task=cc8c2520)
> Stack: c03cd965 c0103480 c04db15c 00000018 00000000 c0102c70 00000000 c04db0fc
> c04db0fc c04db0c8 00000000 c0102df8 00000000 c04db0fc 00000ae8 c04da000
> cc8c2520 00010002 c0414402 c04db0c8 c03cead6 c03cea74 cc8c2520 c0103014
> Call Trace:
> [<c0103480>] do_invalid_op+0x0/0xd0
> [<c0102c70>] show_stack+0x80/0xa0
> [<c0102df8>] show_registers+0x148/0x1b0
> [<c0103014>] die+0xf4/0x190
> [<c01162d7>] printk+0x17/0x20
> [<c010de3a>] do_page_fault+0x2da/0x5d5
> =======================
> [<c013229d>] add_to_page_cache+0xad/0xd0
> [<c0177ae1>] mpage_readpages+0x131/0x160
> [<c0193f30>] reiserfs_get_block+0x0/0x14e0
> [<c0136bf1>] __rmqueue+0xb1/0xf0
> [<c0136c5e>] rmqueue_bulk+0x2e/0x90
> [<c0136b30>] prep_new_page+0x60/0x70
> [<c01399f2>] read_pages+0x132/0x140
> [<c0193f30>] reiserfs_get_block+0x0/0x14e0
> [<c0137573>] __alloc_pages+0x2e3/0x420
> [<c0139b07>] __do_page_cache_readahead+0x107/0x190
> [<c0133a2f>] filemap_nopage+0x2ff/0x3e0
> [<c01427ef>](chunking)
>
> ver_linux script output:
> ftp scripts # ./ver_linux
> If some fields are empty or look unusual you may have an old version.
> Compare to the current minimal requirements in Documentation/Changes.
>
> Linux ftp 2.6.11.7 #4 Tue Apr 26 10:53:58 WEST 2005 i686 Intel(R) Pentium(R) 4
> CPU 2.00GHz GenuineIntel GNU/Linux
>
> Gnu C 3.3.5-20050130
> Gnu make 3.80
> binutils 2.15.92.0.2
> util-linux 2.12i
> mount 2.12i
> module-init-tools 3.0
> e2fsprogs 1.35
> reiserfsprogs 3.6.19
> reiser4progs line
> Linux C Library 2.3.4
> Dynamic linker (ldd) 2.3.4
> Procps 3.2.4
> Net-tools 1.60
> Kbd 1.12
> Sh-utils 5.2.1
> udev 045
> ftp scripts #
>
> kernel configuration:
> CONFIG_X86=y
> CONFIG_MMU=y
> CONFIG_UID16=y
> CONFIG_GENERIC_ISA_DMA=y
> CONFIG_GENERIC_IOMAP=y
> CONFIG_EXPERIMENTAL=y
> CONFIG_CLEAN_COMPILE=y
> CONFIG_BROKEN_ON_SMP=y
> CONFIG_LOCK_KERNEL=y
> CONFIG_LOCALVERSION=""
> CONFIG_SWAP=y
> CONFIG_SYSVIPC=y
> CONFIG_POSIX_MQUEUE=y
> CONFIG_BSD_PROCESS_ACCT=y
> CONFIG_BSD_PROCESS_ACCT_V3=y
> CONFIG_SYSCTL=y
> CONFIG_AUDIT=y
> CONFIG_AUDITSYSCALL=y
> CONFIG_LOG_BUF_SHIFT=14
> CONFIG_HOTPLUG=y
> CONFIG_KOBJECT_UEVENT=y
> CONFIG_IKCONFIG=y
> CONFIG_IKCONFIG_PROC=y
> CONFIG_KALLSYMS=y
> CONFIG_FUTEX=y
> CONFIG_EPOLL=y
> CONFIG_SHMEM=y
> CONFIG_CC_ALIGN_FUNCTIONS=0
> CONFIG_CC_ALIGN_LABELS=0
> CONFIG_CC_ALIGN_LOOPS=0
> CONFIG_CC_ALIGN_JUMPS=0
> CONFIG_X86_PC=y
> CONFIG_MPENTIUM4=y
> CONFIG_X86_CMPXCHG=y
> CONFIG_X86_XADD=y
> CONFIG_X86_L1_CACHE_SHIFT=7
> CONFIG_RWSEM_XCHGADD_ALGORITHM=y
> CONFIG_GENERIC_CALIBRATE_DELAY=y
> CONFIG_X86_WP_WORKS_OK=y
> CONFIG_X86_INVLPG=y
> CONFIG_X86_BSWAP=y
> CONFIG_X86_POPAD_OK=y
> CONFIG_X86_GOOD_APIC=y
> CONFIG_X86_INTEL_USERCOPY=y
> CONFIG_X86_USE_PPRO_CHECKSUM=y
> CONFIG_PREEMPT=y
> CONFIG_PREEMPT_BKL=y
> CONFIG_X86_TSC=y
> CONFIG_X86_MCE=y
> CONFIG_X86_MCE_NONFATAL=y
> CONFIG_NOHIGHMEM=y
> CONFIG_MTRR=y
> CONFIG_HAVE_DEC_LOCK=y
> CONFIG_PM=y
> CONFIG_ACPI=y
> CONFIG_ACPI_BOOT=y
> CONFIG_ACPI_INTERPRETER=y
> CONFIG_ACPI_BUTTON=y
> CONFIG_ACPI_BLACKLIST_YEAR=0
> CONFIG_ACPI_BUS=y
> CONFIG_ACPI_EC=y
> CONFIG_ACPI_POWER=y
> CONFIG_ACPI_PCI=y
> CONFIG_ACPI_SYSTEM=y
> CONFIG_PCI=y
> CONFIG_PCI_GOANY=y
> CONFIG_PCI_BIOS=y
> CONFIG_PCI_DIRECT=y
> CONFIG_PCI_MMCONFIG=y
> CONFIG_PCI_LEGACY_PROC=y
> CONFIG_PCI_NAMES=y
> CONFIG_ISA=y
> CONFIG_PCMCIA_PROBE=y
> CONFIG_BINFMT_ELF=y
> CONFIG_STANDALONE=y
> CONFIG_PREVENT_FIRMWARE_BUILD=y
> CONFIG_FW_LOADER=y
> CONFIG_PNP=y
> CONFIG_PNPACPI=y
> CONFIG_BLK_DEV_FD=y
> CONFIG_BLK_DEV_LOOP=y
> CONFIG_BLK_DEV_CRYPTOLOOP=y
> CONFIG_BLK_DEV_RAM_COUNT=16
> CONFIG_INITRAMFS_SOURCE=""
> CONFIG_LBD=y
> CONFIG_IOSCHED_NOOP=y
> CONFIG_IOSCHED_AS=y
> CONFIG_IOSCHED_DEADLINE=y
> CONFIG_IOSCHED_CFQ=y
> CONFIG_IDE=y
> CONFIG_BLK_DEV_IDE=y
> CONFIG_BLK_DEV_IDEDISK=y
> CONFIG_IDEDISK_MULTI_MODE=y
> CONFIG_BLK_DEV_IDECD=y
> CONFIG_IDE_GENERIC=y
> CONFIG_BLK_DEV_IDEPCI=y
> CONFIG_IDEPCI_SHARE_IRQ=y
> CONFIG_BLK_DEV_GENERIC=y
> CONFIG_BLK_DEV_IDEDMA_PCI=y
> CONFIG_IDEDMA_PCI_AUTO=y
> CONFIG_BLK_DEV_PIIX=y
> CONFIG_BLK_DEV_PDC202XX_NEW=y
> CONFIG_BLK_DEV_SIS5513=y
> CONFIG_BLK_DEV_IDEDMA=y
> CONFIG_IDEDMA_AUTO=y
> CONFIG_MD=y
> CONFIG_BLK_DEV_MD=y
> CONFIG_MD_RAID1=y
> CONFIG_MD_RAID5=y
> CONFIG_BLK_DEV_DM=y
> CONFIG_DM_CRYPT=y
> CONFIG_DM_SNAPSHOT=y
> CONFIG_DM_MIRROR=y
> CONFIG_DM_ZERO=y
> CONFIG_NET=y
> CONFIG_PACKET=y
> CONFIG_PACKET_MMAP=y
> CONFIG_UNIX=y
> CONFIG_INET=y
> CONFIG_IP_MULTICAST=y
> CONFIG_IP_TCPDIAG=y
> CONFIG_IP_TCPDIAG_IPV6=y
> CONFIG_IPV6=y
> CONFIG_IPV6_PRIVACY=y
> CONFIG_INET6_AH=y
> CONFIG_INET6_ESP=y
> CONFIG_INET6_IPCOMP=y
> CONFIG_INET6_TUNNEL=y
> CONFIG_IPV6_TUNNEL=y
> CONFIG_NETFILTER=y
> CONFIG_IP_NF_CONNTRACK=y
> CONFIG_IP_NF_CT_ACCT=y
> CONFIG_IP_NF_CONNTRACK_MARK=y
> CONFIG_IP_NF_CT_PROTO_SCTP=y
> CONFIG_IP_NF_FTP=y
> CONFIG_IP_NF_IRC=y
> CONFIG_IP_NF_TFTP=y
> CONFIG_IP_NF_AMANDA=y
> CONFIG_IP_NF_QUEUE=y
> CONFIG_IP_NF_IPTABLES=y
> CONFIG_IP_NF_MATCH_LIMIT=y
> CONFIG_IP_NF_MATCH_IPRANGE=y
> CONFIG_IP_NF_MATCH_MAC=y
> CONFIG_IP_NF_MATCH_PKTTYPE=y
> CONFIG_IP_NF_MATCH_MARK=y
> CONFIG_IP_NF_MATCH_MULTIPORT=y
> CONFIG_IP_NF_MATCH_TOS=y
> CONFIG_IP_NF_MATCH_RECENT=y
> CONFIG_IP_NF_MATCH_ECN=y
> CONFIG_IP_NF_MATCH_DSCP=y
> CONFIG_IP_NF_MATCH_AH_ESP=y
> CONFIG_IP_NF_MATCH_LENGTH=y
> CONFIG_IP_NF_MATCH_TTL=y
> CONFIG_IP_NF_MATCH_TCPMSS=y
> CONFIG_IP_NF_MATCH_HELPER=y
> CONFIG_IP_NF_MATCH_STATE=y
> CONFIG_IP_NF_MATCH_CONNTRACK=y
> CONFIG_IP_NF_MATCH_OWNER=y
> CONFIG_IP_NF_MATCH_ADDRTYPE=y
> CONFIG_IP_NF_MATCH_REALM=y
> CONFIG_IP_NF_MATCH_SCTP=y
> CONFIG_IP_NF_MATCH_COMMENT=y
> CONFIG_IP_NF_MATCH_CONNMARK=y
> CONFIG_IP_NF_MATCH_HASHLIMIT=y
> CONFIG_IP_NF_FILTER=y
> CONFIG_IP_NF_TARGET_REJECT=y
> CONFIG_IP_NF_TARGET_LOG=y
> CONFIG_IP_NF_TARGET_ULOG=y
> CONFIG_IP_NF_TARGET_TCPMSS=y
> CONFIG_IP_NF_NAT=y
> CONFIG_IP_NF_NAT_NEEDED=y
> CONFIG_IP_NF_TARGET_MASQUERADE=y
> CONFIG_IP_NF_TARGET_REDIRECT=y
> CONFIG_IP_NF_TARGET_NETMAP=y
> CONFIG_IP_NF_TARGET_SAME=y
> CONFIG_IP_NF_NAT_SNMP_BASIC=y
> CONFIG_IP_NF_NAT_IRC=y
> CONFIG_IP_NF_NAT_FTP=y
> CONFIG_IP_NF_NAT_TFTP=y
> CONFIG_IP_NF_NAT_AMANDA=y
> CONFIG_IP_NF_MANGLE=y
> CONFIG_IP_NF_TARGET_TOS=y
> CONFIG_IP_NF_TARGET_ECN=y
> CONFIG_IP_NF_TARGET_DSCP=y
> CONFIG_IP_NF_TARGET_MARK=y
> CONFIG_IP_NF_TARGET_CLASSIFY=y
> CONFIG_IP_NF_TARGET_CONNMARK=y
> CONFIG_IP_NF_TARGET_CLUSTERIP=y
> CONFIG_IP_NF_RAW=y
> CONFIG_IP_NF_TARGET_NOTRACK=y
> CONFIG_IP_NF_ARPTABLES=y
> CONFIG_IP_NF_ARPFILTER=y
> CONFIG_IP_NF_ARP_MANGLE=y
> CONFIG_IP6_NF_QUEUE=y
> CONFIG_IP6_NF_IPTABLES=y
> CONFIG_IP6_NF_MATCH_LIMIT=y
> CONFIG_IP6_NF_MATCH_MAC=y
> CONFIG_IP6_NF_MATCH_RT=y
> CONFIG_IP6_NF_MATCH_OPTS=y
> CONFIG_IP6_NF_MATCH_FRAG=y
> CONFIG_IP6_NF_MATCH_HL=y
> CONFIG_IP6_NF_MATCH_MULTIPORT=y
> CONFIG_IP6_NF_MATCH_OWNER=y
> CONFIG_IP6_NF_MATCH_MARK=y
> CONFIG_IP6_NF_MATCH_IPV6HEADER=y
> CONFIG_IP6_NF_MATCH_AHESP=y
> CONFIG_IP6_NF_MATCH_LENGTH=y
> CONFIG_IP6_NF_MATCH_EUI64=y
> CONFIG_IP6_NF_FILTER=y
> CONFIG_IP6_NF_TARGET_LOG=y
> CONFIG_IP6_NF_MANGLE=y
> CONFIG_IP6_NF_TARGET_MARK=y
> CONFIG_IP6_NF_RAW=y
> CONFIG_XFRM=y
> CONFIG_NET_CLS_ROUTE=y
> CONFIG_NETPOLL=y
> CONFIG_NET_POLL_CONTROLLER=y
> CONFIG_NETDEVICES=y
> CONFIG_DUMMY=y
> CONFIG_NET_ETHERNET=y
> CONFIG_MII=y
> CONFIG_NET_VENDOR_3COM=y
> CONFIG_EL3=y
> CONFIG_NET_TULIP=y
> CONFIG_NET_PCI=y
> CONFIG_E100=y
> CONFIG_8139CP=y
> CONFIG_8139TOO=y
> CONFIG_8139TOO_PIO=y
> CONFIG_NETCONSOLE=y
> CONFIG_INPUT=y
> CONFIG_INPUT_MOUSEDEV=y
> CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
> CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
> CONFIG_SOUND_GAMEPORT=y
> CONFIG_SERIO=y
> CONFIG_SERIO_I8042=y
> CONFIG_SERIO_LIBPS2=y
> CONFIG_INPUT_KEYBOARD=y
> CONFIG_KEYBOARD_ATKBD=y
> CONFIG_VT=y
> CONFIG_VT_CONSOLE=y
> CONFIG_HW_CONSOLE=y
> CONFIG_SERIAL_8250=y
> CONFIG_SERIAL_8250_NR_UARTS=4
> CONFIG_SERIAL_CORE=y
> CONFIG_UNIX98_PTYS=y
> CONFIG_LEGACY_PTYS=y
> CONFIG_LEGACY_PTY_COUNT=256
> CONFIG_HW_RANDOM=y
> CONFIG_NVRAM=y
> CONFIG_RTC=y
> CONFIG_HPET=y
> CONFIG_HPET_RTC_IRQ=y
> CONFIG_HPET_MMAP=y
> CONFIG_HANGCHECK_TIMER=y
> CONFIG_VGA_CONSOLE=y
> CONFIG_DUMMY_CONSOLE=y
> CONFIG_USB_ARCH_HAS_HCD=y
> CONFIG_USB_ARCH_HAS_OHCI=y
> CONFIG_EXT2_FS=y
> CONFIG_REISERFS_FS=y
> CONFIG_REISERFS_PROC_INFO=y
> CONFIG_REISERFS_FS_XATTR=y
> CONFIG_REISERFS_FS_POSIX_ACL=y
> CONFIG_FS_POSIX_ACL=y
> CONFIG_DNOTIFY=y
> CONFIG_ISO9660_FS=y
> CONFIG_JOLIET=y
> CONFIG_ZISOFS=y
> CONFIG_ZISOFS_FS=y
> CONFIG_UDF_FS=y
> CONFIG_UDF_NLS=y
> CONFIG_FAT_FS=y
> CONFIG_MSDOS_FS=y
> CONFIG_VFAT_FS=y
> CONFIG_FAT_DEFAULT_CODEPAGE=437
> CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
> CONFIG_PROC_FS=y
> CONFIG_PROC_KCORE=y
> CONFIG_SYSFS=y
> CONFIG_DEVFS_FS=y
> CONFIG_DEVFS_MOUNT=y
> CONFIG_TMPFS=y
> CONFIG_RAMFS=y
> CONFIG_CIFS=y
> CONFIG_CIFS_STATS=y
> CONFIG_MSDOS_PARTITION=y
> CONFIG_NLS=y
> CONFIG_NLS_DEFAULT="iso8859-1"
> CONFIG_NLS_CODEPAGE_860=y
> CONFIG_NLS_ISO8859_1=y
> CONFIG_DEBUG_PREEMPT=y
> CONFIG_DEBUG_BUGVERBOSE=y
> CONFIG_EARLY_PRINTK=y
> CONFIG_4KSTACKS=y
> CONFIG_CRYPTO=y
> CONFIG_CRYPTO_HMAC=y
> CONFIG_CRYPTO_NULL=y
> CONFIG_CRYPTO_MD4=y
> CONFIG_CRYPTO_MD5=y
> CONFIG_CRYPTO_SHA1=y
> CONFIG_CRYPTO_SHA256=y
> CONFIG_CRYPTO_SHA512=y
> CONFIG_CRYPTO_WP512=y
> CONFIG_CRYPTO_DES=y
> CONFIG_CRYPTO_BLOWFISH=y
> CONFIG_CRYPTO_TWOFISH=y
> CONFIG_CRYPTO_SERPENT=y
> CONFIG_CRYPTO_AES_586=y
> CONFIG_CRYPTO_CAST5=y
> CONFIG_CRYPTO_CAST6=y
> CONFIG_CRYPTO_TEA=y
> CONFIG_CRYPTO_ARC4=y
> CONFIG_CRYPTO_KHAZAD=y
> CONFIG_CRYPTO_ANUBIS=y
> CONFIG_CRYPTO_DEFLATE=y
> CONFIG_CRYPTO_MICHAEL_MIC=y
> CONFIG_CRYPTO_CRC32C=y
> CONFIG_CRYPTO_TEST=y
> CONFIG_CRC_CCITT=y
> CONFIG_CRC32=y
> CONFIG_LIBCRC32C=y
> CONFIG_ZLIB_INFLATE=y
> CONFIG_ZLIB_DEFLATE=y
> CONFIG_GENERIC_HARDIRQS=y
> CONFIG_GENERIC_IRQ_PROBE=y
> CONFIG_X86_BIOS_REBOOT=y
> CONFIG_PC=y
>
--
Alexander Nyberg <alexn@dsv.su.se>
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: ftp server crashes on heavy load: possible scheduler bug
2005-04-29 12:59 ` Alexander Nyberg
@ 2005-04-29 13:23 ` Zwane Mwaikambo
2005-04-29 14:32 ` Pedro Venda (SYSADM)
1 sibling, 0 replies; 12+ messages in thread
From: Zwane Mwaikambo @ 2005-04-29 13:23 UTC (permalink / raw)
To: Alexander Nyberg; +Cc: Pedro Venda (SYSADM), Linux Kernel, rnl
On Fri, 29 Apr 2005, Alexander Nyberg wrote:
> > We've made some changes on our ftp server, and since that it's been crashing
> > frequently (everyday) with a kernel panic.
> >
> > We've configured the 5 IDE 160GB drives into md raid5 arrays with LVM on top
> > of that. All filesystems are reiserfs. The other change we made to the server
> > was changing from a patched 2.6.10-ac12 kernel into a newer 2.6.11.7.
> >
> > Not being able to see the whole stacktrace on screen, we've started a
> > netconsole to investigate. Started the server and loaded it pretty bad with
> > rsyncs and such... until it crashed after just 20 minutes.
> >
> > The netconsole log was surprising - "kernel BUG at kernel/sched.c:2634!"
> >
> > Any help would be GREATLY appreciated.
> >
>
>
> 5 IDE disks into one MD raid5 into one LVM volume with reiserfs on top
> of it? Could you give me some way to reproduce the specific load you put
> on the machine plus your .config and I'll see what I can do.
Could you also try without CONFIG_4KSTACKS?
Thanks,
Zwane
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: ftp server crashes on heavy load: possible scheduler bug
2005-04-27 18:16 ` Francois Romieu
@ 2005-04-29 14:19 ` Pedro Venda (SYSADM)
2005-04-30 16:20 ` Francois Romieu
0 siblings, 1 reply; 12+ messages in thread
From: Pedro Venda (SYSADM) @ 2005-04-29 14:19 UTC (permalink / raw)
To: Francois Romieu; +Cc: linux-kernel, rnl
[-- Attachment #1: Type: text/plain, Size: 1054 bytes --]
On Wednesday 27 April 2005 19:16, Francois Romieu wrote:
> Pedro Venda (SYSADM) <pjvenda@rnl.ist.utl.pt> :
> [...]
>
> > Not being able to see the whole stacktrace on screen, we've started a
> > netconsole to investigate. Started the server and loaded it pretty bad
> > with rsyncs and such... until it crashed after just 20 minutes.
> >
> > The netconsole log was surprising - "kernel BUG at kernel/sched.c:2634!"
>
> Is it reproducible if you disable both preempt and netconsole ?
not sure yet.
please note that netconsole was added AFTER some crashes to analise the crash
dump, so I don't think it's directly related.
keep in mind that this is a production machine.
I'll sure test the same kernel without preemption and post results.
thanks.
regards,
pedro venda.
--
Pedro João Lopes Venda
email: pjvenda < at > rnl.ist.utl.pt
http://maxwell.rnl.ist.utl.pt
Equipa de Administração de Sistemas
Rede das Novas Licenciaturas (RNL)
Instituto Superior Técnico
http://www.rnl.ist.utl.pt
http://mega.ist.utl.pt
[-- Attachment #2: Type: application/pgp-signature, Size: 189 bytes --]
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: ftp server crashes on heavy load: possible scheduler bug
2005-04-29 12:08 ` Andrew Morton
@ 2005-04-29 14:21 ` Pedro Venda (SYSADM)
2005-04-29 15:59 ` Paulo Marques
2005-04-29 16:57 ` Pedro Venda (SYSADM)
0 siblings, 2 replies; 12+ messages in thread
From: Pedro Venda (SYSADM) @ 2005-04-29 14:21 UTC (permalink / raw)
To: Andrew Morton; +Cc: linux-kernel, rnl
[-- Attachment #1: Type: text/plain, Size: 1880 bytes --]
On Friday 29 April 2005 13:08, Andrew Morton wrote:
> "Pedro Venda (SYSADM)" <pjvenda@rnl.ist.utl.pt> wrote:
> > We've made some changes on our ftp server, and since that it's been
> > crashing frequently (everyday) with a kernel panic.
> >
> > We've configured the 5 IDE 160GB drives into md raid5 arrays with LVM on
> > top of that. All filesystems are reiserfs. The other change we made to
> > the server was changing from a patched 2.6.10-ac12 kernel into a newer
> > 2.6.11.7.
> >
> > Not being able to see the whole stacktrace on screen, we've started a
> > netconsole to investigate. Started the server and loaded it pretty bad
> > with rsyncs and such... until it crashed after just 20 minutes.
> >
> > The netconsole log was surprising - "kernel BUG at kernel/sched.c:2634!"
>
> Strange. It'd be interesting to try disabling CONFIG_4KSTACKS. Also,
> please add this to get a bit more info.
hi,
I'll try that. Should I do it with or without preemption?
regards,
pedro venda.
>
> diff -puN kernel/sched.c~a kernel/sched.c
> --- 25/kernel/sched.c~a 2005-04-29 05:05:24.792004408 -0700
> +++ 25-akpm/kernel/sched.c 2005-04-29 05:06:36.015176840 -0700
> @@ -2631,7 +2631,12 @@ void fastcall add_preempt_count(int val)
> /*
> * Underflow?
> */
> - BUG_ON(((int)preempt_count() < 0));
> + if ((int)preempt_count() < 0) {
> + printk("preempt_count=%d\n", preempt_count());
> + BUG();
> + }
> + if ((int)preempt_count() > 1000)
> + printk("preempt_count=%d\n", preempt_count());
> preempt_count() += val;
> /*
> * Spinlock count overflowing soon?
> _
--
Pedro João Lopes Venda
email: pjvenda < at > rnl.ist.utl.pt
http://maxwell.rnl.ist.utl.pt
Equipa de Administração de Sistemas
Rede das Novas Licenciaturas (RNL)
Instituto Superior Técnico
http://www.rnl.ist.utl.pt
http://mega.ist.utl.pt
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^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: ftp server crashes on heavy load: possible scheduler bug
2005-04-29 12:59 ` Alexander Nyberg
2005-04-29 13:23 ` Zwane Mwaikambo
@ 2005-04-29 14:32 ` Pedro Venda (SYSADM)
2005-04-29 14:55 ` Pedro Venda (SYSADM)
1 sibling, 1 reply; 12+ messages in thread
From: Pedro Venda (SYSADM) @ 2005-04-29 14:32 UTC (permalink / raw)
To: Alexander Nyberg; +Cc: linux-kernel, rnl
[-- Attachment #1: Type: text/plain, Size: 2995 bytes --]
On Friday 29 April 2005 13:59, Alexander Nyberg wrote:
> > We've made some changes on our ftp server, and since that it's been
> > crashing frequently (everyday) with a kernel panic.
> >
> > We've configured the 5 IDE 160GB drives into md raid5 arrays with LVM on
> > top of that. All filesystems are reiserfs. The other change we made to
> > the server was changing from a patched 2.6.10-ac12 kernel into a newer
> > 2.6.11.7.
> >
> > Not being able to see the whole stacktrace on screen, we've started a
> > netconsole to investigate. Started the server and loaded it pretty bad
> > with rsyncs and such... until it crashed after just 20 minutes.
> >
> > The netconsole log was surprising - "kernel BUG at kernel/sched.c:2634!"
> >
> > Any help would be GREATLY appreciated.
>
> 5 IDE disks into one MD raid5 into one LVM volume with reiserfs on top
> of it? Could you give me some way to reproduce the specific load you put
> on the machine plus your .config and I'll see what I can do.
ok, current setup is:
5 160GB IDE drives spread across 2 controller cards, one onboard and a PCI
promise ultra133 (Promise Technology, Inc. 20269 (rev 02)). All but two of
the drives are alone in an IDE channel.
boot and system partitions are mirrored [raid1] across all drives (not that
silly because of uniform partitioning scheme for raid5 array).
About 150GB of each drive belong to a RAID5 array with total size of 576.73
GB.
that raid5 array supports two LVM volumes of 320 and 256GB.
df -h:
Filesystem Size Used Avail Use% Mounted on
/dev/md5 19G 2.6G 17G 14% /
/dev/big/ftp 320G 260G 61G 82% /home/ftp
/dev/big/other 257G 149G 108G 58% /home/other
none 252M 0 252M 0% /dev/shm
/dev/md1 69M 8.7M 57M 14% /boot
lvscan:
ACTIVE '/dev/big/ftp' [320.00 GB] inherit
ACTIVE '/dev/big/other' [256.73 GB] inherit
pvscan:
PV /dev/md6 VG big lvm2 [576.73 GB / 0 free]
Total: 1 [576.73 GB] / in use: 1 [576.73 GB] / in no VG: 0 [0 ]
mdstat:
Personalities : [raid1] [raid5]
md2 : active raid1 hdc2[1] hda2[0]
136448 blocks [2/2] [UU]
md7 : active raid1 hdg2[1] hde2[0]
136448 blocks [2/2] [UU]
md1 : active raid1 hdh1[4] hdg1[3] hde1[2] hdc1[1] hda1[0]
72192 blocks [5/5] [UUUUU]
md5 : active raid5 hdh5[4] hdg5[3] hde5[2] hdc5[1] hda5[0]
19566592 blocks level 5, 64k chunk, algorithm 2 [5/5] [UUUUU]
md6 : active raid5 hdh6[4] hdg6[3] hde6[2] hdc6[1] hda6[0]
604750336 blocks level 5, 64k chunk, algorithm 2 [5/5] [UUUUU]
unused devices: <none>
hope it helps.
regards,
pedro venda.
--
Pedro João Lopes Venda
email: pjvenda < at > rnl.ist.utl.pt
http://maxwell.rnl.ist.utl.pt
Equipa de Administração de Sistemas
Rede das Novas Licenciaturas (RNL)
Instituto Superior Técnico
http://www.rnl.ist.utl.pt
http://mega.ist.utl.pt
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^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: ftp server crashes on heavy load: possible scheduler bug
2005-04-29 14:32 ` Pedro Venda (SYSADM)
@ 2005-04-29 14:55 ` Pedro Venda (SYSADM)
0 siblings, 0 replies; 12+ messages in thread
From: Pedro Venda (SYSADM) @ 2005-04-29 14:55 UTC (permalink / raw)
To: Alexander Nyberg; +Cc: linux-kernel, rnl
[-- Attachment #1: Type: text/plain, Size: 3841 bytes --]
On Friday 29 April 2005 15:32, Pedro Venda (SYSADM) wrote:
> On Friday 29 April 2005 13:59, Alexander Nyberg wrote:
> > > We've made some changes on our ftp server, and since that it's been
> > > crashing frequently (everyday) with a kernel panic.
> > >
> > > We've configured the 5 IDE 160GB drives into md raid5 arrays with LVM
> > > on top of that. All filesystems are reiserfs. The other change we made
> > > to the server was changing from a patched 2.6.10-ac12 kernel into a
> > > newer 2.6.11.7.
> > >
> > > Not being able to see the whole stacktrace on screen, we've started a
> > > netconsole to investigate. Started the server and loaded it pretty bad
> > > with rsyncs and such... until it crashed after just 20 minutes.
> > >
> > > The netconsole log was surprising - "kernel BUG at
> > > kernel/sched.c:2634!"
> > >
> > > Any help would be GREATLY appreciated.
> >
> > 5 IDE disks into one MD raid5 into one LVM volume with reiserfs on top
> > of it? Could you give me some way to reproduce the specific load you put
> > on the machine plus your .config and I'll see what I can do.
forgot about the load:
It's an ftp server. official mirror for ubuntu linux, gentoo linux, eclipse
SDK, etc. see ftp://ftp.rnl.ist.utl.pt
We also provide rsync service for gentoo portage users. The load tests we
performed that eventually crashed the machine were about 10 simultaneous
rsyncs pulling information from the server, the server was uploading with
rsync via ssh at 10MB/s (100Mbit nic) and some spurious ftp download clients.
It lasted about 30 minutes. With normal load, it lasts for about 12-14 hours.
I think it crashes better with rsync clients... it usually crashed at around
00h, when some cronjobs fired rsyncs...
regards,
pedro venda.
>
> ok, current setup is:
>
> 5 160GB IDE drives spread across 2 controller cards, one onboard and a PCI
> promise ultra133 (Promise Technology, Inc. 20269 (rev 02)). All but two of
> the drives are alone in an IDE channel.
>
> boot and system partitions are mirrored [raid1] across all drives (not that
> silly because of uniform partitioning scheme for raid5 array).
>
> About 150GB of each drive belong to a RAID5 array with total size of 576.73
> GB.
>
> that raid5 array supports two LVM volumes of 320 and 256GB.
>
> df -h:
> Filesystem Size Used Avail Use% Mounted on
> /dev/md5 19G 2.6G 17G 14% /
> /dev/big/ftp 320G 260G 61G 82% /home/ftp
> /dev/big/other 257G 149G 108G 58% /home/other
> none 252M 0 252M 0% /dev/shm
> /dev/md1 69M 8.7M 57M 14% /boot
>
> lvscan:
> ACTIVE '/dev/big/ftp' [320.00 GB] inherit
> ACTIVE '/dev/big/other' [256.73 GB] inherit
>
> pvscan:
> PV /dev/md6 VG big lvm2 [576.73 GB / 0 free]
> Total: 1 [576.73 GB] / in use: 1 [576.73 GB] / in no VG: 0 [0 ]
>
> mdstat:
> Personalities : [raid1] [raid5]
> md2 : active raid1 hdc2[1] hda2[0]
> 136448 blocks [2/2] [UU]
> md7 : active raid1 hdg2[1] hde2[0]
> 136448 blocks [2/2] [UU]
> md1 : active raid1 hdh1[4] hdg1[3] hde1[2] hdc1[1] hda1[0]
> 72192 blocks [5/5] [UUUUU]
> md5 : active raid5 hdh5[4] hdg5[3] hde5[2] hdc5[1] hda5[0]
> 19566592 blocks level 5, 64k chunk, algorithm 2 [5/5] [UUUUU]
> md6 : active raid5 hdh6[4] hdg6[3] hde6[2] hdc6[1] hda6[0]
> 604750336 blocks level 5, 64k chunk, algorithm 2 [5/5] [UUUUU]
> unused devices: <none>
>
> hope it helps.
>
> regards,
> pedro venda.
--
Pedro João Lopes Venda
email: pjvenda < at > rnl.ist.utl.pt
http://maxwell.rnl.ist.utl.pt
Equipa de Administração de Sistemas
Rede das Novas Licenciaturas (RNL)
Instituto Superior Técnico
http://www.rnl.ist.utl.pt
http://mega.ist.utl.pt
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^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: ftp server crashes on heavy load: possible scheduler bug
2005-04-29 14:21 ` Pedro Venda (SYSADM)
@ 2005-04-29 15:59 ` Paulo Marques
2005-04-29 16:57 ` Pedro Venda (SYSADM)
1 sibling, 0 replies; 12+ messages in thread
From: Paulo Marques @ 2005-04-29 15:59 UTC (permalink / raw)
To: Pedro Venda (SYSADM); +Cc: Andrew Morton, linux-kernel, rnl
Pedro Venda (SYSADM) wrote:
> On Friday 29 April 2005 13:08, Andrew Morton wrote:
>
>>"Pedro Venda (SYSADM)" <pjvenda@rnl.ist.utl.pt> wrote:
>>
>>>We've made some changes on our ftp server, and since that it's been
>>>crashing frequently (everyday) with a kernel panic.
>>>
>>>[...]
>>> The netconsole log was surprising - "kernel BUG at kernel/sched.c:2634!"
>>
>>Strange. It'd be interesting to try disabling CONFIG_4KSTACKS. Also,
>>please add this to get a bit more info.
>
> hi,
>
> I'll try that. Should I do it with or without preemption?
The CONFIG_4KSTACKS is a more likely suspect than the preemption, actually.
When I read the post from Andrew I remembered some discussion about this
and reiserfs, and searched my archives for it:
http://marc.theaimsgroup.com/?l=linux-kernel&m=108680778325490&w=2
I would start with turning them both off to have a stable working system.
If after that you feel that your life is too boring and you want to live
dangerously, you might try with CONFIG_PREEMPT=y. If you really want the
full adrenaline rush, then go wild with CONFIG_PREEMPT_BKL=y too :)
--
Paulo Marques - www.grupopie.com
All that is necessary for the triumph of evil is that good men do nothing.
Edmund Burke (1729 - 1797)
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: ftp server crashes on heavy load: possible scheduler bug
2005-04-29 14:21 ` Pedro Venda (SYSADM)
2005-04-29 15:59 ` Paulo Marques
@ 2005-04-29 16:57 ` Pedro Venda (SYSADM)
1 sibling, 0 replies; 12+ messages in thread
From: Pedro Venda (SYSADM) @ 2005-04-29 16:57 UTC (permalink / raw)
To: Andrew Morton; +Cc: linux-kernel, rnl
[-- Attachment #1: Type: text/plain, Size: 2259 bytes --]
On Friday 29 April 2005 15:21, Pedro Venda (SYSADM) wrote:
> On Friday 29 April 2005 13:08, Andrew Morton wrote:
> > "Pedro Venda (SYSADM)" <pjvenda@rnl.ist.utl.pt> wrote:
> > > We've made some changes on our ftp server, and since that it's been
> > > crashing frequently (everyday) with a kernel panic.
> > >
> > > We've configured the 5 IDE 160GB drives into md raid5 arrays with LVM
> > > on top of that. All filesystems are reiserfs. The other change we made
> > > to the server was changing from a patched 2.6.10-ac12 kernel into a
> > > newer 2.6.11.7.
> > >
> > > Not being able to see the whole stacktrace on screen, we've started a
> > > netconsole to investigate. Started the server and loaded it pretty bad
> > > with rsyncs and such... until it crashed after just 20 minutes.
> > >
> > > The netconsole log was surprising - "kernel BUG at
> > > kernel/sched.c:2634!"
> >
> > Strange. It'd be interesting to try disabling CONFIG_4KSTACKS. Also,
> > please add this to get a bit more info.
>
> hi,
>
> I'll try that. Should I do it with or without preemption?
kernel does not boot. I get (initite) repeats of
"=======================================" (not scaled).
I'm testing with a preemptible kernel without 4kstacks but without the
suggested patch.
regards,
pedro venda.
>
> regards,
> pedro venda.
>
> > diff -puN kernel/sched.c~a kernel/sched.c
> > --- 25/kernel/sched.c~a 2005-04-29 05:05:24.792004408 -0700
> > +++ 25-akpm/kernel/sched.c 2005-04-29 05:06:36.015176840 -0700
> > @@ -2631,7 +2631,12 @@ void fastcall add_preempt_count(int val)
> > /*
> > * Underflow?
> > */
> > - BUG_ON(((int)preempt_count() < 0));
> > + if ((int)preempt_count() < 0) {
> > + printk("preempt_count=%d\n", preempt_count());
> > + BUG();
> > + }
> > + if ((int)preempt_count() > 1000)
> > + printk("preempt_count=%d\n", preempt_count());
> > preempt_count() += val;
> > /*
> > * Spinlock count overflowing soon?
> > _
--
Pedro João Lopes Venda
email: pjvenda < at > rnl.ist.utl.pt
http://maxwell.rnl.ist.utl.pt
Equipa de Administração de Sistemas
Rede das Novas Licenciaturas (RNL)
Instituto Superior Técnico
http://www.rnl.ist.utl.pt
http://mega.ist.utl.pt
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^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: ftp server crashes on heavy load: possible scheduler bug
2005-04-29 14:19 ` Pedro Venda (SYSADM)
@ 2005-04-30 16:20 ` Francois Romieu
0 siblings, 0 replies; 12+ messages in thread
From: Francois Romieu @ 2005-04-30 16:20 UTC (permalink / raw)
To: Pedro Venda (SYSADM); +Cc: linux-kernel, rnl
Pedro Venda (SYSADM) <pjvenda@rnl.ist.utl.pt> :
[...]
> please note that netconsole was added AFTER some crashes to analise the crash
> dump, so I don't think it's directly related.
I agree. See it more as 1) preempt is "interesting", 2) it is not clear that
netpoll will show what one expects when networking issues come into play
(netpoll locking had to change recently). It would be nice to narrow the
issue within the fs/block subsystem.
> keep in mind that this is a production machine.
Some may toast me but I'd avoid preempt on a production machine.
--
Ueimor
^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2005-04-30 16:23 UTC | newest]
Thread overview: 12+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2005-04-26 13:02 ftp server crashes on heavy load: possible scheduler bug Pedro Venda (SYSADM)
2005-04-27 18:16 ` Francois Romieu
2005-04-29 14:19 ` Pedro Venda (SYSADM)
2005-04-30 16:20 ` Francois Romieu
2005-04-29 12:08 ` Andrew Morton
2005-04-29 14:21 ` Pedro Venda (SYSADM)
2005-04-29 15:59 ` Paulo Marques
2005-04-29 16:57 ` Pedro Venda (SYSADM)
2005-04-29 12:59 ` Alexander Nyberg
2005-04-29 13:23 ` Zwane Mwaikambo
2005-04-29 14:32 ` Pedro Venda (SYSADM)
2005-04-29 14:55 ` Pedro Venda (SYSADM)
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