Date: Tue, 23 May 1995 01:20:05 -0700 From: Heikki Suonsivu <hsu@clinet.fi> To: freebsd-bugs Subject: kern/435: mb_map full, network starts jumping off and on, finally stays down Message-ID: <199505230820.BAA16953@freefall.cdrom.com> In-Reply-To: Your message of Tue, 23 May 1995 11:17:10 %2B0300 <199505230817.LAA14469@katiska.clinet.fi>
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>Number: 435
>Category: kern
>Synopsis: mb_map full, network starts jumping off and on, finally stays down
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: freebsd-bugs (FreeBSD bugs mailing list)
>State: open
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue May 23 01:20:04 1995
>Originator: Heikki Suonsivu
>Organization:
Helsinki University of Technology, Finland
>Release: FreeBSD 2.0-BUILT-19950507 i386
>Environment:
P90 as news server plus various other jobs.
FreeBSD 2.0-BUILT-19950519 #0: Fri May 19 18:19:14 EET DST 1995
hsu@katiska.clinet.fi:/usr/src/sys/compile/CLINETSERVER
CPU: 90-MHz Pentium 735\\90 (Pentium-class CPU)
Origin = "GenuineIntel" Id = 0x524 Stepping=4
Features=0x1bf<FPU,VME,PSE,MCE,CX8,APIC>
real memory = 33161216 (8096 pages)
avail memory = 30777344 (7514 pages)
Probing for devices on the ISA bus:
sc0 at 0x60-0x6f irq 1 on motherboard
sc0: VGA color <16 virtual consoles, flags=0x0>
ed0 at 0x280-0x29f irq 5 maddr 0xd8000 msize 16384 on isa
ed0: address 00:00:c0:cd:b9:a3, type WD8013EPC (16 bit)
bpf: ed0 attached
lpt0 not found at 0x3bc
sio0 at 0x3f8-0x3ff irq 4 on isa
sio0: type 16550A
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16550A
sio2 not found at 0x3e8
sio3 not found at 0x2e8
pca0 on isa
pca0: PC speaker audio driver
bt0 not found at 0x330
aha0 not found at 0x330
wdc0 not found at 0x1f0
wdc1 not found at 0x170
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: NEC 765
fd0: 1.44MB 3.5in
mcd0: timeout getting status
mcd0 not found at 0x300
le0: no board found at 0x300
le0 not found at 0x300
npx0 on motherboard
npx0: INT 16 interface
matcd0 not found at 0xffffffff
matcd1 not found at 0xffffffff
matcd2 not found at 0xffffffff
matcd3 not found at 0xffffffff
bio_imask c0000040 tty_imask c003003a net_imask c003003a
Probing for devices on the pci0 bus:
configuration mode 1 allows 32 devices.
pci0:0: vendor=0x1039, device=0x406, class=bridge [not supported]
pci0:1: vendor=0x1039, device=0x8, class=bridge [not supported]
ncr0 <ncr 53c810 scsi> rev 2 int a irq 12 on pci0:13
reg20: virtual=0xf61ddf00 physical=0xffbdff00 size=0x100
ncr0: restart (scsi reset).
ncr0 scanning for targets 0..6 (V2 pl21 95/03/21)
ncr0 waiting for scsi devices to settle
(ncr0:0:0): 200ns (5 Mb/sec) offset 8.
(ncr0:0:0): "IBM 0662S12 !O 2 23" type 0 fixed SCSI 2
sd0(ncr0:0:0): Direct-Access
sd0(ncr0:0:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8.
1003MB (2055035 512 byte sectors)
(ncr0:1:0): "SEAGATE ST32550N 0012" type 0 fixed SCSI 2
sd1(ncr0:1:0): Direct-Access
sd1(ncr0:1:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8.
2047MB (4194058 512 byte sectors)
(ncr0:3:0): "SEAGATE ST31200N 9348" type 0 fixed SCSI 2
sd3(ncr0:3:0): Direct-Access
sd3(ncr0:3:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8.
1011MB (2072435 512 byte sectors)
vga0 <Display device> rev 0 on pci0:17
pci0: uses 8388864 bytes of memory from ff000000 upto ffbdffff.
pci0: uses 256 bytes of I/O space from fc00 upto fcff.
changing root device to sd0a
bpf: ds0 attached
bpf: lo0 attached
bpf: ppp0 attached
bpf: ppp1 attached
bpf: ppp2 attached
bpf: ppp3 attached
bpf: ppp4 attached
bpf: ppp5 attached
bpf: ppp6 attached
bpf: ppp7 attached
bpf: ppp8 attached
bpf: ppp9 attached
bpf: ppp10 attached
bpf: ppp11 attached
bpf: ppp12 attached
bpf: ppp13 attached
bpf: ppp14 attached
bpf: ppp15 attached
bpf: ppp16 attached
bpf: ppp17 attached
bpf: ppp18 attached
bpf: ppp19 attached
bpf: ppp20 attached
bpf: ppp21 attached
bpf: ppp22 attached
bpf: ppp23 attached
bpf: ppp24 attached
bpf: ppp25 attached
bpf: ppp26 attached
bpf: ppp27 attached
bpf: ppp28 attached
bpf: ppp29 attached
bpf: ppp30 attached
bpf: ppp31 attached
bpf: sl0 attached
bpf: sl1 attached
bpf: sl2 attached
bpf: sl3 attached
bpf: sl4 attached
bpf: sl5 attached
bpf: sl6 attached
bpf: sl7 attached
bpf: sl8 attached
bpf: sl9 attached
bpf: sl10 attached
bpf: sl11 attached
bpf: sl12 attached
bpf: sl13 attached
bpf: sl14 attached
bpf: sl15 attached
bpf: tun0 attached
WARNING: / was not properly dismounted.
>Description:
Kernel spits out
May 23 00:00:32 katiska /kernel: mb_map full
And network interface starts dropping packets. Occasionally a packet
or two gets through, as sometimes nfs says is alive again, and even a
login gets though. A couple of hours later the connections die
completely.
>How-To-Repeat:
Don't know, but suspect high load.
>Fix:
Don't know, but I assume it is a too small fixed-size table
somewhere, and probably a leak somewhere else.
>Audit-Trail:
>Unformatted:
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