* Memory accounting problem in 2.4.13, 2.4.14pre, and possibly 2.4.14
@ 2001-11-06 22:03 Mike Fedyk
2001-11-07 21:36 ` Mike Fedyk
2001-11-08 2:10 ` Andrew Morton
0 siblings, 2 replies; 8+ messages in thread
From: Mike Fedyk @ 2001-11-06 22:03 UTC (permalink / raw)
To: linux-kernel
Hello,
I am trying to track down a memory accounting problem I've seen ever since I
tried a 2.4.13 based kernel. Specifically I've noticed an overflow for the
"Cached" entry in /proc/meminfo, but also the numbers don't add up to the
total memory count. Shouldn't they add up? If they should, I haven't seen
one that does....
I first noticed it on:
2.4.13freeswan-1.91+ac5+preempt+netdev_random+vm_freeswap
2.4.14-pre6+preempt+netdev_random+ext3_0.9.14-2414p5
I thought it may be preempt so I tried:
2.4.14-pre8+netdev_random-p7+xsched+ext3_0.9.14-2414p8+elevator
But I still get the same problem with "Cached".
Now I'm trying to see if it could be ext3 with:
2.4.14-ext3-2.4-0.9.14-2414p8
And I haven't noticed the problem after 16 hours uptime. Sometimes it would
show earlier, or later.
>From current (2.4.14-ext3-2.4-0.9.14-2414p8) kernel:
total: used: free: shared: buffers: cached:
Mem: 261443584 254337024 7106560 0 58957824 76398592
Swap: 199815168 1228800 198586368
MemTotal: 255316 kB
MemFree: 6940 kB
MemShared: 0 kB
Buffers: 57576 kB
Cached: 73408 kB
SwapCached: 1200 kB
Active: 65048 kB
Inactive: 138040 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 255316 kB
LowFree: 6940 kB
SwapTotal: 195132 kB
SwapFree: 193932 kB
Subtracted from MemTotal should = 0:
MemFree: 6940 kB
Active: 65048 kB
Inactive: 138040 kB
= 45288 kB remaining
Shouldn't these numbers add up to MemTotal?
$ dpkg -l "*gcc*"|grep ii
ii gcc 2.95.4-8 The GNU C compiler.
ii gcc-2.95 2.95.4-0.01100 The GNU C compiler.
On Debian Sid.
I can provide more information upon request...
Mike
^ permalink raw reply [flat|nested] 8+ messages in thread* Re: Memory accounting problem in 2.4.13, 2.4.14pre, and possibly 2.4.14
2001-11-06 22:03 Memory accounting problem in 2.4.13, 2.4.14pre, and possibly 2.4.14 Mike Fedyk
@ 2001-11-07 21:36 ` Mike Fedyk
2001-11-08 1:30 ` Mike Fedyk
2001-11-08 2:10 ` Andrew Morton
1 sibling, 1 reply; 8+ messages in thread
From: Mike Fedyk @ 2001-11-07 21:36 UTC (permalink / raw)
To: linux-kernel
On Tue, Nov 06, 2001 at 02:03:35PM -0800, Mike Fedyk wrote:
> Hello,
>
> I am trying to track down a memory accounting problem I've seen ever since I
> tried a 2.4.13 based kernel. Specifically I've noticed an overflow for the
> "Cached" entry in /proc/meminfo, but also the numbers don't add up to the
> total memory count. Shouldn't they add up? If they should, I haven't seen
> one that does....
>
> I first noticed it on:
> 2.4.13freeswan-1.91+ac5+preempt+netdev_random+vm_freeswap
> 2.4.14-pre6+preempt+netdev_random+ext3_0.9.14-2414p5
>
> I thought it may be preempt so I tried:
> 2.4.14-pre8+netdev_random-p7+xsched+ext3_0.9.14-2414p8+elevator
>
> But I still get the same problem with "Cached".
>
> Now I'm trying to see if it could be ext3 with:
> 2.4.14-ext3-2.4-0.9.14-2414p8
>
> And I haven't noticed the problem after 16 hours uptime. Sometimes it would
> show earlier, or later.
>
> >From current (2.4.14-ext3-2.4-0.9.14-2414p8) kernel:
> total: used: free: shared: buffers: cached:
> Mem: 261443584 254337024 7106560 0 58957824 76398592
> Swap: 199815168 1228800 198586368
> MemTotal: 255316 kB
> MemFree: 6940 kB
> MemShared: 0 kB
> Buffers: 57576 kB
> Cached: 73408 kB
> SwapCached: 1200 kB
> Active: 65048 kB
> Inactive: 138040 kB
> HighTotal: 0 kB
> HighFree: 0 kB
> LowTotal: 255316 kB
> LowFree: 6940 kB
> SwapTotal: 195132 kB
> SwapFree: 193932 kB
>
> Subtracted from MemTotal should = 0:
> MemFree: 6940 kB
> Active: 65048 kB
> Inactive: 138040 kB
> = 45288 kB remaining
>
> Shouldn't these numbers add up to MemTotal?
>
> $ dpkg -l "*gcc*"|grep ii
> ii gcc 2.95.4-8 The GNU C compiler.
> ii gcc-2.95 2.95.4-0.01100 The GNU C compiler.
>
> On Debian Sid.
>
> I can provide more information upon request...
>
To continue the results...
Now : 1 day(s), 15:47:31 running Linux 2.4.14-ext3-2.4-0.9.14-2414p8
has also exibited the problem with cached.
I'm going to try unpatched 2.4.14 now...
Mike
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Memory accounting problem in 2.4.13, 2.4.14pre, and possibly 2.4.14
2001-11-07 21:36 ` Mike Fedyk
@ 2001-11-08 1:30 ` Mike Fedyk
0 siblings, 0 replies; 8+ messages in thread
From: Mike Fedyk @ 2001-11-08 1:30 UTC (permalink / raw)
To: linux-kernel; +Cc: Andrea Arcangeli, Marcelo Tosatti, Alan Cox
On Wed, Nov 07, 2001 at 01:36:44PM -0800, Mike Fedyk wrote:
> On Tue, Nov 06, 2001 at 02:03:35PM -0800, Mike Fedyk wrote:
> > Hello,
> >
> I'm going to try unpatched 2.4.14 now...
>
> Mike
Here's my .config. All other kernels had the same .config except for things
that enabled preempt, or ext3 or etc...
On unpatched 2.4.14 with the below .config I'm still seeing unaccounted
memory (12,924kB in this case:
total: used: free: shared: buffers: cached:
Mem: 261586944 201109504 60477440 0 4964352 96686080
Swap: 199815168 0 199815168
MemTotal: 255456 kB
MemFree: 59060 kB
MemShared: 0 kB
Buffers: 4848 kB
Cached: 94420 kB
SwapCached: 0 kB
Active: 27888 kB
Inactive: 155584 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 255456 kB
LowFree: 59060 kB
SwapTotal: 195132 kB
SwapFree: 195132 kB
Mike
#
# Automatically generated make config: don't edit
#
CONFIG_X86=y
CONFIG_ISA=y
# CONFIG_SBUS is not set
CONFIG_UID16=y
#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y
#
# Loadable module support
#
CONFIG_MODULES=y
# CONFIG_MODVERSIONS is not set
CONFIG_KMOD=y
#
# Processor type and features
#
# 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=y
# CONFIG_MPENTIUMIII is not set
# CONFIG_MPENTIUM4 is not set
# CONFIG_MK6 is not set
# CONFIG_MK7 is not set
# CONFIG_MCRUSOE is not set
# CONFIG_MWINCHIPC6 is not set
# CONFIG_MWINCHIP2 is not set
# CONFIG_MWINCHIP3D is not set
# CONFIG_MCYRIXIII is not set
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_CMPXCHG=y
CONFIG_X86_XADD=y
CONFIG_X86_BSWAP=y
CONFIG_X86_POPAD_OK=y
# CONFIG_RWSEM_GENERIC_SPINLOCK is not set
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_X86_L1_CACHE_SHIFT=5
CONFIG_X86_TSC=y
CONFIG_X86_GOOD_APIC=y
CONFIG_X86_PGE=y
CONFIG_X86_USE_PPRO_CHECKSUM=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
CONFIG_NOHIGHMEM=y
# CONFIG_HIGHMEM4G is not set
# CONFIG_HIGHMEM64G is not set
# CONFIG_MATH_EMULATION is not set
CONFIG_MTRR=y
CONFIG_SMP=y
# CONFIG_MULTIQUAD is not set
CONFIG_HAVE_DEC_LOCK=y
#
# General setup
#
CONFIG_NET=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_PCI=y
# CONFIG_PCI_GOBIOS is not set
# CONFIG_PCI_GODIRECT is not set
CONFIG_PCI_GOANY=y
CONFIG_PCI_BIOS=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_NAMES=y
# CONFIG_EISA is not set
# CONFIG_MCA is not set
# CONFIG_HOTPLUG is not set
# CONFIG_PCMCIA is not set
CONFIG_SYSVIPC=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
CONFIG_KCORE_ELF=y
# CONFIG_KCORE_AOUT is not set
# CONFIG_BINFMT_AOUT is not set
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_MISC is not set
CONFIG_PM=y
# CONFIG_ACPI is not set
CONFIG_APM=y
# CONFIG_APM_IGNORE_USER_SUSPEND is not set
CONFIG_APM_DO_ENABLE=y
# CONFIG_APM_CPU_IDLE is not set
CONFIG_APM_DISPLAY_BLANK=y
# CONFIG_APM_RTC_IS_GMT is not set
# CONFIG_APM_ALLOW_INTS is not set
# CONFIG_APM_REAL_MODE_POWER_OFF is not set
#
# Memory Technology Devices (MTD)
#
# CONFIG_MTD is not set
#
# Parallel port support
#
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=y
CONFIG_PARPORT_PC_CML1=y
# CONFIG_PARPORT_SERIAL is not set
CONFIG_PARPORT_PC_FIFO=y
# CONFIG_PARPORT_PC_SUPERIO is not set
# CONFIG_PARPORT_AMIGA is not set
# CONFIG_PARPORT_MFC3 is not set
# CONFIG_PARPORT_ATARI is not set
# CONFIG_PARPORT_SUNBPP is not set
# CONFIG_PARPORT_OTHER is not set
CONFIG_PARPORT_1284=y
#
# Plug and Play configuration
#
CONFIG_PNP=y
CONFIG_ISAPNP=y
#
# Block devices
#
CONFIG_BLK_DEV_FD=y
# CONFIG_BLK_DEV_XD is not set
# CONFIG_PARIDE 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_LOOP=m
CONFIG_BLK_DEV_NBD=m
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_BLK_DEV_INITRD is not set
#
# Multi-device support (RAID and LVM)
#
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_LINEAR=y
CONFIG_MD_RAID0=y
CONFIG_MD_RAID1=y
CONFIG_MD_RAID5=y
# CONFIG_MD_MULTIPATH is not set
# CONFIG_BLK_DEV_LVM is not set
#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_NETLINK=y
CONFIG_RTNETLINK=y
CONFIG_NETLINK_DEV=y
CONFIG_NETFILTER=y
CONFIG_NETFILTER_DEBUG=y
CONFIG_FILTER=y
CONFIG_UNIX=y
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_RTNETLINK=y
CONFIG_NETLINK=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_FWMARK=y
CONFIG_IP_ROUTE_NAT=y
# CONFIG_IP_ROUTE_MULTIPATH is not set
CONFIG_IP_ROUTE_TOS=y
CONFIG_IP_ROUTE_VERBOSE=y
# CONFIG_IP_ROUTE_LARGE_TABLES is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_ARPD is not set
# CONFIG_INET_ECN is not set
CONFIG_SYN_COOKIES=y
#
# IP: Netfilter Configuration
#
CONFIG_IP_NF_CONNTRACK=m
CONFIG_IP_NF_FTP=m
CONFIG_IP_NF_IRC=m
# CONFIG_IP_NF_QUEUE is not set
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_LIMIT=m
CONFIG_IP_NF_MATCH_MAC=m
CONFIG_IP_NF_MATCH_MARK=m
# CONFIG_IP_NF_MATCH_MULTIPORT is not set
CONFIG_IP_NF_MATCH_TOS=m
CONFIG_IP_NF_MATCH_LENGTH=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_MATCH_TCPMSS=m
CONFIG_IP_NF_MATCH_STATE=m
# CONFIG_IP_NF_MATCH_UNCLEAN is not set
# CONFIG_IP_NF_MATCH_OWNER is not set
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
# CONFIG_IP_NF_TARGET_MIRROR is not set
CONFIG_IP_NF_NAT=m
CONFIG_IP_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_REDIRECT=m
# CONFIG_IP_NF_NAT_SNMP_BASIC is not set
CONFIG_IP_NF_NAT_IRC=m
CONFIG_IP_NF_NAT_FTP=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_TOS=m
CONFIG_IP_NF_TARGET_MARK=m
CONFIG_IP_NF_TARGET_LOG=m
CONFIG_IP_NF_TARGET_TCPMSS=m
# CONFIG_IP_NF_COMPAT_IPCHAINS is not set
# CONFIG_IP_NF_COMPAT_IPFWADM is not set
# CONFIG_IPV6 is not set
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set
# CONFIG_VLAN_8021Q is not set
#
#
#
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_LLC is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_FASTROUTE is not set
CONFIG_NET_HW_FLOWCONTROL=y
#
# QoS and/or fair queueing
#
CONFIG_NET_SCHED=y
CONFIG_NETLINK=y
CONFIG_RTNETLINK=y
CONFIG_NET_SCH_CBQ=m
CONFIG_NET_SCH_CSZ=m
CONFIG_NET_SCH_PRIO=m
CONFIG_NET_SCH_RED=m
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_DSMARK=m
CONFIG_NET_SCH_INGRESS=m
CONFIG_NET_QOS=y
CONFIG_NET_ESTIMATOR=y
CONFIG_NET_CLS=y
CONFIG_NET_CLS_TCINDEX=m
CONFIG_NET_CLS_ROUTE4=m
CONFIG_NET_CLS_ROUTE=y
CONFIG_NET_CLS_FW=m
CONFIG_NET_CLS_U32=m
CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
CONFIG_NET_CLS_POLICE=y
#
# Telephony Support
#
# CONFIG_PHONE is not set
# CONFIG_PHONE_IXJ is not set
# CONFIG_PHONE_IXJ_PCMCIA is not set
#
# ATA/IDE/MFM/RLL support
#
CONFIG_IDE=y
#
# IDE, ATA and ATAPI Block devices
#
CONFIG_BLK_DEV_IDE=y
#
# Please see Documentation/ide.txt for help/info on IDE drives
#
# CONFIG_BLK_DEV_HD_IDE is not set
# CONFIG_BLK_DEV_HD is not set
CONFIG_BLK_DEV_IDEDISK=y
CONFIG_IDEDISK_MULTI_MODE=y
# CONFIG_BLK_DEV_IDEDISK_VENDOR is not set
# CONFIG_BLK_DEV_IDEDISK_FUJITSU is not set
# CONFIG_BLK_DEV_IDEDISK_IBM is not set
# CONFIG_BLK_DEV_IDEDISK_MAXTOR is not set
# CONFIG_BLK_DEV_IDEDISK_QUANTUM is not set
# CONFIG_BLK_DEV_IDEDISK_SEAGATE is not set
# CONFIG_BLK_DEV_IDEDISK_WD is not set
# CONFIG_BLK_DEV_COMMERIAL is not set
# CONFIG_BLK_DEV_TIVO is not set
# CONFIG_BLK_DEV_IDECS is not set
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_IDETAPE=y
CONFIG_BLK_DEV_IDEFLOPPY=y
# CONFIG_BLK_DEV_IDESCSI is not set
#
# IDE chipset support/bugfixes
#
CONFIG_BLK_DEV_CMD640=y
# CONFIG_BLK_DEV_CMD640_ENHANCED is not set
# CONFIG_BLK_DEV_ISAPNP is not set
CONFIG_BLK_DEV_RZ1000=y
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_SHARE_IRQ=y
CONFIG_BLK_DEV_IDEDMA_PCI=y
CONFIG_BLK_DEV_ADMA=y
# CONFIG_BLK_DEV_OFFBOARD is not set
CONFIG_IDEDMA_PCI_AUTO=y
CONFIG_BLK_DEV_IDEDMA=y
# CONFIG_IDEDMA_PCI_WIP is not set
# CONFIG_IDEDMA_NEW_DRIVE_LISTINGS is not set
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_AEC62XX_TUNING is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_WDC_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_AMD74XX_OVERRIDE is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_CY82C693 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT34X is not set
# CONFIG_HPT34X_AUTODMA is not set
# CONFIG_BLK_DEV_HPT366 is not set
CONFIG_BLK_DEV_PIIX=y
CONFIG_PIIX_TUNING=y
# CONFIG_BLK_DEV_NS87415 is not set
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_PDC202XX=y
CONFIG_PDC202XX_BURST=y
CONFIG_PDC202XX_FORCE=y
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIS5513 is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_IDE_CHIPSETS is not set
CONFIG_IDEDMA_AUTO=y
# CONFIG_IDEDMA_IVB is not set
# CONFIG_DMA_NONPCI is not set
CONFIG_BLK_DEV_IDE_MODES=y
# CONFIG_BLK_DEV_ATARAID is not set
# CONFIG_BLK_DEV_ATARAID_PDC is not set
# CONFIG_BLK_DEV_ATARAID_HPT is not set
#
# SCSI support
#
CONFIG_SCSI=y
#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
CONFIG_SD_EXTRA_DEVS=40
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
# CONFIG_BLK_DEV_SR is not set
# CONFIG_CHR_DEV_SG is not set
#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
CONFIG_SCSI_DEBUG_QUEUES=y
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
# CONFIG_SCSI_LOGGING is not set
#
# SCSI low-level drivers
#
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_7000FASST is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA152X is not set
# CONFIG_SCSI_AHA1542 is not set
# CONFIG_SCSI_AHA1740 is not set
CONFIG_SCSI_AIC7XXX=y
CONFIG_AIC7XXX_CMDS_PER_DEVICE=253
CONFIG_AIC7XXX_RESET_DELAY_MS=15000
# CONFIG_AIC7XXX_BUILD_FIRMWARE is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_IN2000 is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_MEGARAID is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_CPQFCTS is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_DTC3280 is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_EATA_DMA is not set
# CONFIG_SCSI_EATA_PIO is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_GENERIC_NCR5380 is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_NCR53C406A is not set
# CONFIG_SCSI_NCR53C7xx is not set
# CONFIG_SCSI_NCR53C8XX is not set
CONFIG_SCSI_SYM53C8XX=y
CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
CONFIG_SCSI_NCR53C8XX_SYNC=20
# CONFIG_SCSI_NCR53C8XX_PROFILE is not set
# CONFIG_SCSI_NCR53C8XX_IOMAPPED is not set
# CONFIG_SCSI_NCR53C8XX_PQS_PDS is not set
# CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT is not set
# CONFIG_SCSI_PAS16 is not set
# CONFIG_SCSI_PCI2000 is not set
# CONFIG_SCSI_PCI2220I is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_QLOGIC_ISP is not set
# CONFIG_SCSI_QLOGIC_FC is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_SEAGATE is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_U14_34F is not set
# CONFIG_SCSI_ULTRASTOR is not set
# CONFIG_SCSI_DEBUG is not set
#
# Fusion MPT device support
#
# CONFIG_FUSION is not set
# CONFIG_FUSION_BOOT is not set
# CONFIG_FUSION_ISENSE is not set
# CONFIG_FUSION_CTL is not set
# CONFIG_FUSION_LAN is not set
#
# IEEE 1394 (FireWire) support (EXPERIMENTAL)
#
# CONFIG_IEEE1394 is not set
#
# I2O device support
#
# CONFIG_I2O is not set
# CONFIG_I2O_PCI is not set
# CONFIG_I2O_BLOCK is not set
# CONFIG_I2O_LAN is not set
# CONFIG_I2O_SCSI is not set
# CONFIG_I2O_PROC is not set
#
# Network device support
#
CONFIG_NETDEVICES=y
#
# ARCnet devices
#
# CONFIG_ARCNET is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
CONFIG_ETHERTAP=m
# CONFIG_NET_SB1000 is not set
#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
# CONFIG_SUNLANCE is not set
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNBMAC is not set
# CONFIG_SUNQE is not set
# CONFIG_SUNLANCE 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 is not set
# CONFIG_3C515 is not set
# CONFIG_ELMC is not set
# CONFIG_ELMC_II is not set
CONFIG_VORTEX=m
# CONFIG_LANCE is not set
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_VENDOR_RACAL 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=m
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_AC3200 is not set
# CONFIG_APRICOT is not set
# CONFIG_CS89x0 is not set
CONFIG_TULIP=m
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
# CONFIG_DE4X5 is not set
# CONFIG_DGRS is not set
# CONFIG_DM9102 is not set
CONFIG_EEPRO100=m
# CONFIG_LNE390 is not set
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_NE3210 is not set
# CONFIG_ES3210 is not set
# CONFIG_8139CP is not set
CONFIG_8139TOO=m
# CONFIG_8139TOO_PIO is not set
# CONFIG_8139TOO_TUNE_TWISTER is not set
# CONFIG_8139TOO_8129 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_WINBOND_840 is not set
# CONFIG_NET_POCKET is not set
#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_MYRI_SBUS is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_SK98LIN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set
#
# Token Ring devices
#
# CONFIG_TR is not set
# CONFIG_NET_FC is not set
# CONFIG_RCPCI is not set
# CONFIG_SHAPER is not set
#
# Wan interfaces
#
# CONFIG_WAN is not set
#
# Amateur Radio support
#
# CONFIG_HAMRADIO is not set
#
# IrDA (infrared) support
#
# CONFIG_IRDA is not set
#
# ISDN subsystem
#
# CONFIG_ISDN is not set
#
# Old CD-ROM drivers (not SCSI, not IDE)
#
# CONFIG_CD_NO_IDESCSI is not set
#
# Input core support
#
# CONFIG_INPUT is not set
# CONFIG_INPUT_KEYBDEV is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
CONFIG_SERIAL_EXTENDED=y
# CONFIG_SERIAL_MANY_PORTS is not set
CONFIG_SERIAL_SHARE_IRQ=y
CONFIG_SERIAL_DETECT_IRQ=y
# CONFIG_SERIAL_MULTIPORT is not set
# CONFIG_HUB6 is not set
# CONFIG_SERIAL_NONSTANDARD is not set
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
CONFIG_PRINTER=y
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set
#
# I2C support
#
# CONFIG_I2C is not set
#
# Mice
#
# CONFIG_BUSMOUSE is not set
CONFIG_MOUSE=y
CONFIG_PSMOUSE=y
# CONFIG_82C710_MOUSE is not set
# CONFIG_PC110_PAD is not set
#
# Joysticks
#
# CONFIG_INPUT_GAMEPORT is not set
#
# Input core support is needed for gameports
#
#
# Input core support is needed for joysticks
#
# CONFIG_QIC02_TAPE is not set
#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
CONFIG_INTEL_RNG=y
# CONFIG_NVRAM is not set
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=m
CONFIG_AGP_INTEL=y
# CONFIG_AGP_I810 is not set
# CONFIG_AGP_VIA is not set
# CONFIG_AGP_AMD is not set
# CONFIG_AGP_SIS is not set
# CONFIG_AGP_ALI is not set
# CONFIG_AGP_SWORKS is not set
CONFIG_DRM=y
CONFIG_DRM_TDFX=m
# CONFIG_DRM_GAMMA is not set
# CONFIG_DRM_R128 is not set
# CONFIG_DRM_RADEON is not set
# CONFIG_DRM_I810 is not set
# CONFIG_DRM_MGA is not set
# CONFIG_MWAVE is not set
#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set
#
# File systems
#
# CONFIG_QUOTA is not set
CONFIG_AUTOFS_FS=m
CONFIG_AUTOFS4_FS=m
# CONFIG_REISERFS_FS is not set
# CONFIG_REISERFS_CHECK is not set
# CONFIG_ADFS_FS is not set
# CONFIG_ADFS_FS_RW is not set
# CONFIG_AFFS_FS is not set
CONFIG_HFS_FS=m
# CONFIG_BFS_FS is not set
CONFIG_EXT3_FS=y
CONFIG_JBD=y
CONFIG_JBD_DEBUG=y
CONFIG_FAT_FS=m
# CONFIG_MSDOS_FS is not set
# CONFIG_UMSDOS_FS is not set
CONFIG_VFAT_FS=m
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_JFFS2_FS is not set
# CONFIG_CRAMFS is not set
CONFIG_TMPFS=y
# CONFIG_RAMFS is not set
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
# CONFIG_MINIX_FS is not set
# CONFIG_VXFS_FS is not set
CONFIG_NTFS_FS=m
# CONFIG_NTFS_RW is not set
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
# CONFIG_DEVFS_FS is not set
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
CONFIG_DEVPTS_FS=y
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX4FS_RW is not set
# CONFIG_ROMFS_FS is not set
CONFIG_EXT2_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_UDF_FS is not set
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set
#
# Network File Systems
#
# CONFIG_CODA_FS is not set
CONFIG_NFS_FS=m
# CONFIG_NFS_V3 is not set
# CONFIG_ROOT_NFS is not set
# CONFIG_NFSD is not set
# CONFIG_NFSD_V3 is not set
CONFIG_SUNRPC=m
CONFIG_LOCKD=m
CONFIG_SMB_FS=m
CONFIG_SMB_NLS_DEFAULT=y
CONFIG_SMB_NLS_REMOTE="cp437"
# CONFIG_NCP_FS is not set
# CONFIG_NCPFS_PACKET_SIGNING is not set
# CONFIG_NCPFS_IOCTL_LOCKING is not set
# CONFIG_NCPFS_STRONG is not set
# CONFIG_NCPFS_NFS_NS is not set
# CONFIG_NCPFS_OS2_NS is not set
# CONFIG_NCPFS_SMALLDOS is not set
# CONFIG_NCPFS_NLS is not set
# CONFIG_NCPFS_EXTRAS is not set
CONFIG_ZISOFS_FS=m
CONFIG_ZLIB_FS_INFLATE=m
#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_SMB_NLS=y
CONFIG_NLS=y
#
# Native Language Support
#
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
# 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 is not set
# 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_1251 is not set
# CONFIG_NLS_ISO8859_1 is not set
# 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
#
# Console drivers
#
CONFIG_VGA_CONSOLE=y
CONFIG_VIDEO_SELECT=y
# CONFIG_MDA_CONSOLE is not set
#
# Frame-buffer support
#
# CONFIG_FB is not set
#
# Sound
#
CONFIG_SOUND=y
# CONFIG_SOUND_BT878 is not set
# CONFIG_SOUND_CMPCI is not set
# CONFIG_SOUND_EMU10K1 is not set
# CONFIG_MIDI_EMU10K1 is not set
# CONFIG_SOUND_FUSION is not set
# CONFIG_SOUND_CS4281 is not set
# CONFIG_SOUND_ES1370 is not set
# CONFIG_SOUND_ES1371 is not set
# CONFIG_SOUND_ESSSOLO1 is not set
# CONFIG_SOUND_MAESTRO is not set
# CONFIG_SOUND_MAESTRO3 is not set
# CONFIG_SOUND_ICH is not set
# CONFIG_SOUND_RME96XX is not set
# CONFIG_SOUND_SONICVIBES is not set
# CONFIG_SOUND_TRIDENT is not set
# CONFIG_SOUND_MSNDCLAS is not set
# CONFIG_SOUND_MSNDPIN is not set
# CONFIG_SOUND_VIA82CXXX is not set
# CONFIG_MIDI_VIA82CXXX is not set
CONFIG_SOUND_OSS=y
# CONFIG_SOUND_TRACEINIT is not set
CONFIG_SOUND_DMAP=y
# CONFIG_SOUND_AD1816 is not set
# CONFIG_SOUND_SGALAXY is not set
# CONFIG_SOUND_ADLIB is not set
# CONFIG_SOUND_ACI_MIXER is not set
# CONFIG_SOUND_CS4232 is not set
# CONFIG_SOUND_SSCAPE is not set
# CONFIG_SOUND_GUS is not set
# CONFIG_SOUND_VMIDI is not set
# CONFIG_SOUND_TRIX is not set
# CONFIG_SOUND_MSS is not set
# CONFIG_SOUND_MPU401 is not set
# CONFIG_SOUND_NM256 is not set
# CONFIG_SOUND_MAD16 is not set
# CONFIG_SOUND_PAS is not set
# CONFIG_PAS_JOYSTICK is not set
# CONFIG_SOUND_PSS is not set
CONFIG_SOUND_SB=m
CONFIG_SOUND_AWE32_SYNTH=m
# CONFIG_SOUND_WAVEFRONT is not set
# CONFIG_SOUND_MAUI is not set
# CONFIG_SOUND_YM3812 is not set
# CONFIG_SOUND_OPL3SA1 is not set
# CONFIG_SOUND_OPL3SA2 is not set
# CONFIG_SOUND_YMFPCI is not set
# CONFIG_SOUND_YMFPCI_LEGACY is not set
# CONFIG_SOUND_UART6850 is not set
# CONFIG_SOUND_AEDSP16 is not set
# CONFIG_SOUND_TVMIXER is not set
#
# USB support
#
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set
#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
# CONFIG_USB_BANDWIDTH is not set
# CONFIG_USB_LONG_TIMEOUT is not set
#
# USB Controllers
#
CONFIG_USB_UHCI=y
# CONFIG_USB_UHCI_ALT is not set
# CONFIG_USB_OHCI is not set
#
# USB Device Class drivers
#
# CONFIG_USB_AUDIO is not set
# CONFIG_USB_BLUETOOTH is not set
# CONFIG_USB_STORAGE is not set
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_DPCM is not set
# CONFIG_USB_STORAGE_HP8200e is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
#
# USB Human Interface Devices (HID)
#
#
# Input core support is needed for USB HID
#
#
# USB Imaging devices
#
# CONFIG_USB_DC2XX is not set
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_SCANNER is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USB_HPUSBSCSI is not set
#
# USB Multimedia devices
#
#
# Video4Linux support is needed for USB Multimedia device support
#
#
# USB Network adaptors
#
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_CATC is not set
# CONFIG_USB_CDCETHER is not set
# CONFIG_USB_USBNET is not set
#
# USB port drivers
#
# CONFIG_USB_USS720 is not set
#
# USB Serial Converter support
#
# CONFIG_USB_SERIAL is not set
# CONFIG_USB_SERIAL_GENERIC is not set
# CONFIG_USB_SERIAL_BELKIN is not set
# CONFIG_USB_SERIAL_WHITEHEAT is not set
# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set
# CONFIG_USB_SERIAL_EMPEG is not set
# CONFIG_USB_SERIAL_FTDI_SIO is not set
# CONFIG_USB_SERIAL_VISOR is not set
# CONFIG_USB_SERIAL_IR is not set
# CONFIG_USB_SERIAL_EDGEPORT is not set
# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set
# CONFIG_USB_SERIAL_KEYSPAN is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28 is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28XA is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA28XB is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19 is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA18X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19W is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA49W is not set
# CONFIG_USB_SERIAL_MCT_U232 is not set
# CONFIG_USB_SERIAL_PL2303 is not set
# CONFIG_USB_SERIAL_CYBERJACK is not set
# CONFIG_USB_SERIAL_XIRCOM is not set
# CONFIG_USB_SERIAL_OMNINET is not set
#
# USB Miscellaneous drivers
#
# CONFIG_USB_RIO500 is not set
#
# Bluetooth support
#
# CONFIG_BLUEZ is not set
#
# Kernel hacking
#
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_HIGHMEM is not set
CONFIG_DEBUG_SLAB=y
CONFIG_DEBUG_IOVIRT=y
CONFIG_MAGIC_SYSRQ=y
# CONFIG_DEBUG_SPINLOCK is not set
CONFIG_DEBUG_BUGVERBOSE=y
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Memory accounting problem in 2.4.13, 2.4.14pre, and possibly 2.4.14
2001-11-06 22:03 Memory accounting problem in 2.4.13, 2.4.14pre, and possibly 2.4.14 Mike Fedyk
2001-11-07 21:36 ` Mike Fedyk
@ 2001-11-08 2:10 ` Andrew Morton
2001-11-08 2:24 ` Mike Fedyk
1 sibling, 1 reply; 8+ messages in thread
From: Andrew Morton @ 2001-11-08 2:10 UTC (permalink / raw)
To: Mike Fedyk; +Cc: linux-kernel
Mike Fedyk wrote:
>
> Hello,
>
> I am trying to track down a memory accounting problem I've seen ever since I
> tried a 2.4.13 based kernel. Specifically I've noticed an overflow for the
> "Cached" entry in /proc/meminfo, but also the numbers don't add up to the
> total memory count. Shouldn't they add up? If they should, I haven't seen
> one that does....
>
> I first noticed it on:
> 2.4.13freeswan-1.91+ac5+preempt+netdev_random+vm_freeswap
> 2.4.14-pre6+preempt+netdev_random+ext3_0.9.14-2414p5
>
> I thought it may be preempt so I tried:
> 2.4.14-pre8+netdev_random-p7+xsched+ext3_0.9.14-2414p8+elevator
>
> But I still get the same problem with "Cached".
>
> Now I'm trying to see if it could be ext3 with:
> 2.4.14-ext3-2.4-0.9.14-2414p8
>
> And I haven't noticed the problem after 16 hours uptime. Sometimes it would
> show earlier, or later.
>
Ah. So are you saying that it does *not* occur on
ext3, but that it does occur on ext2?
Could you retest ext2 with this:
--- linux-2.4.14/mm/filemap.c Mon Nov 5 21:01:12 2001
+++ linux-akpm/mm/filemap.c Wed Nov 7 18:09:38 2001
@@ -223,6 +223,8 @@ static void truncate_complete_page(struc
/* Leave it on the LRU if it gets converted into anonymous buffers */
if (!page->buffers || block_flushpage(page, 0))
lru_cache_del(page);
+ else
+ atomic_inc(&buffermem_pages);
/*
* We remove the page from the page cache _after_ we have
(This will break ext3's accounting)
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Memory accounting problem in 2.4.13, 2.4.14pre, and possibly 2.4.14
2001-11-08 2:10 ` Andrew Morton
@ 2001-11-08 2:24 ` Mike Fedyk
2001-11-08 5:00 ` Andrew Morton
0 siblings, 1 reply; 8+ messages in thread
From: Mike Fedyk @ 2001-11-08 2:24 UTC (permalink / raw)
To: Andrew Morton; +Cc: linux-kernel
On Wed, Nov 07, 2001 at 06:10:47PM -0800, Andrew Morton wrote:
> Mike Fedyk wrote:
> >
> > Hello,
> >
> > I am trying to track down a memory accounting problem I've seen ever since I
> > tried a 2.4.13 based kernel. Specifically I've noticed an overflow for the
> > "Cached" entry in /proc/meminfo, but also the numbers don't add up to the
> > total memory count. Shouldn't they add up? If they should, I haven't seen
> > one that does....
> >
> > I first noticed it on:
> > 2.4.13freeswan-1.91+ac5+preempt+netdev_random+vm_freeswap
> > 2.4.14-pre6+preempt+netdev_random+ext3_0.9.14-2414p5
> >
> > I thought it may be preempt so I tried:
> > 2.4.14-pre8+netdev_random-p7+xsched+ext3_0.9.14-2414p8+elevator
> >
> > But I still get the same problem with "Cached".
> >
> > Now I'm trying to see if it could be ext3 with:
> > 2.4.14-ext3-2.4-0.9.14-2414p8
> >
> > And I haven't noticed the problem after 16 hours uptime. Sometimes it would
> > show earlier, or later.
> >
>
> Ah. So are you saying that it does *not* occur on
> ext3, but that it does occur on ext2?
>
I have been able to see the same problem with 2.4.14-ext3-2.4-0.9.14-2414p8.
> Could you retest ext2 with this:
>
I am running unpatched 2.4.14 now.
Do you still want me to try this patch now that you know I have been able to
see the problem with 2.2.14+ext3?
Mike
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Memory accounting problem in 2.4.13, 2.4.14pre, and possibly 2.4.14
2001-11-08 2:24 ` Mike Fedyk
@ 2001-11-08 5:00 ` Andrew Morton
2001-11-08 6:47 ` Mike Fedyk
2001-11-08 14:41 ` James Bourne
0 siblings, 2 replies; 8+ messages in thread
From: Andrew Morton @ 2001-11-08 5:00 UTC (permalink / raw)
To: Mike Fedyk; +Cc: linux-kernel
Mike Fedyk wrote:
>
> >
>
> I am running unpatched 2.4.14 now.
>
> Do you still want me to try this patch now that you know I have been able to
> see the problem with 2.2.14+ext3?
>
It's OK - I can reproduce it easily anyway.
There are two things here. Recent -ac kernels had a merge
bug down in the /proc code which caused `Cached:' to go
negative. It was recently fixed.
And quite independently, current ext3 for Linus kernels now has a
bug which causes the `buffermem_pages' number to get too large.
This has the exact same effect: `Cached:' goes negative.
The buffermem_pages counter is purely for reporting - no VM decisions
are based on its value. But if it worries you, just remove line 1933 of fs/jbd/transaction.c.
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Memory accounting problem in 2.4.13, 2.4.14pre, and possibly 2.4.14
2001-11-08 5:00 ` Andrew Morton
@ 2001-11-08 6:47 ` Mike Fedyk
2001-11-08 14:41 ` James Bourne
1 sibling, 0 replies; 8+ messages in thread
From: Mike Fedyk @ 2001-11-08 6:47 UTC (permalink / raw)
To: Andrew Morton; +Cc: linux-kernel
On Wed, Nov 07, 2001 at 09:00:26PM -0800, Andrew Morton wrote:
> Mike Fedyk wrote:
> >
> > >
> >
> > I am running unpatched 2.4.14 now.
> >
> > Do you still want me to try this patch now that you know I have been able to
> > see the problem with 2.2.14+ext3?
> >
>
> It's OK - I can reproduce it easily anyway.
>
> There are two things here. Recent -ac kernels had a merge
> bug down in the /proc code which caused `Cached:' to go
> negative. It was recently fixed.
>
> And quite independently, current ext3 for Linus kernels now has a
> bug which causes the `buffermem_pages' number to get too large.
> This has the exact same effect: `Cached:' goes negative.
>
> The buffermem_pages counter is purely for reporting - no VM decisions
> are based on its value. But if it worries you, just remove line 1933 of fs/jbd/transaction.c.
Applied.
Here's the patch.
--- 2.4.14-ext3_0.9.15-2414/fs/jbd/transaction.c~ Wed Nov 7 22:41:13 2001
+++ 2.4.14-ext3_0.9.15-2414/fs/jbd/transaction.c Wed Nov 7 22:43:14 2001
@@ -1930,7 +1930,6 @@
if (!offset) {
if (!may_free || !try_to_free_buffers(page, 0)) {
- atomic_inc(&buffermem_pages);
return 0;
}
J_ASSERT(page->buffers == NULL);
I'll run it overnight, and test it tomorrow...
Mike
^ permalink raw reply [flat|nested] 8+ messages in thread* Re: Memory accounting problem in 2.4.13, 2.4.14pre, and possibly 2.4.14
2001-11-08 5:00 ` Andrew Morton
2001-11-08 6:47 ` Mike Fedyk
@ 2001-11-08 14:41 ` James Bourne
1 sibling, 0 replies; 8+ messages in thread
From: James Bourne @ 2001-11-08 14:41 UTC (permalink / raw)
To: Andrew Morton; +Cc: Mike Fedyk, linux-kernel
On Wed, 7 Nov 2001, Andrew Morton wrote:
> Mike Fedyk wrote:
> >
> > >
> >
> > I am running unpatched 2.4.14 now.
> >
> > Do you still want me to try this patch now that you know I have been able to
> > see the problem with 2.2.14+ext3?
> >
>
> It's OK - I can reproduce it easily anyway.
>
> There are two things here. Recent -ac kernels had a merge
> bug down in the /proc code which caused `Cached:' to go
> negative. It was recently fixed.
>
> And quite independently, current ext3 for Linus kernels now has a
> bug which causes the `buffermem_pages' number to get too large.
> This has the exact same effect: `Cached:' goes negative.
I can confirm this, with the ext3 0.9.14p8 and 0.9.15 patches for 2.4.14 our
buffer and cache values become very off the wall. Without ext3 the system
is fine (we are currently running 2.4.14 without ext3).
>
> The buffermem_pages counter is purely for reporting - no VM decisions are
> based on its value. But if it worries you, just remove line 1933 of
> fs/jbd/transaction.c.
This is good to hear.
Regards
Jim
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
>
--
James Bourne, Supervisor Data Centre Operations
Mount Royal College, Calgary, AB, CA
www.mtroyal.ab.ca
******************************************************************************
This communication is intended for the use of the recipient to which it is
addressed, and may contain confidential, personal, and or privileged
information. Please contact the sender immediately if you are not the
intended recipient of this communication, and do not copy, distribute, or
take action relying on it. Any communication received in error, or
subsequent reply, should be deleted or destroyed.
******************************************************************************
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2001-11-08 14:41 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2001-11-06 22:03 Memory accounting problem in 2.4.13, 2.4.14pre, and possibly 2.4.14 Mike Fedyk
2001-11-07 21:36 ` Mike Fedyk
2001-11-08 1:30 ` Mike Fedyk
2001-11-08 2:10 ` Andrew Morton
2001-11-08 2:24 ` Mike Fedyk
2001-11-08 5:00 ` Andrew Morton
2001-11-08 6:47 ` Mike Fedyk
2001-11-08 14:41 ` James Bourne
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