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Run out of nocached RAM! kernel BUG at srmmu.c:397!



I have recently installed Debian 3.0 on my SPARCstation20 MP(configuration
details below). Tesing apache on it with httperf (from a different box) I got
what looks like a kernel panic:
--------- 8< syslog 8<---------------------------------------------------------
Jul 26 11:13:26 therion kernel: kernel BUG at srmmu.c:397!
Jul 26 11:13:26 therion kernel: Unable to handle kernel NULL pointer dereference
<1>tsk->{mm,active_mm}->context = 000000e5
Jul 26 11:13:26 therion kernel: tsk->{mm,active_mm}->pgd = fc01f800
Jul 26 11:13:26 therion kernel:               \|/ ____ \|/
Jul 26 11:13:26 therion kernel:               "@'/ ,. \`@"
Jul 26 11:13:26 therion kernel:               /_| \__/ |_\
Jul 26 11:13:26 therion kernel:                  \__U_/
Jul 26 11:13:26 therion kernel: top(241): Oops
Jul 26 11:13:26 therion kernel: PSR: 408000c7 PC: f0023f38 NPC: f0023f3c Y: 0000
0000    Not tainted
Jul 26 11:13:26 therion kernel: g0: f0195000 g1: 40800fe5 g2: 00000001 g3: 40400
fe6 g4: f002b7a0 g5: 53545556 g6: fbb96000 g7: 00000100
Jul 26 11:13:26 therion kernel: o0: 0000001b o1: 404000e7 o2: f0195000 o3: f0195
000 o4: f0195270 o5: f015bfa0 sp: fbb97d48 o7: f0023f30
Jul 26 11:13:26 therion kernel: l0: fbb96368 l1: fbb963c8 l2: 00000001 l3: efffe
fff l4: 0000007c l5: 00313300 l6: fbb96000 l7: 50041fa8
Jul 26 11:13:26 therion kernel: i0: f01bec60 i1: 00040000 i2: f01e7c00 i3: 00000
003 i4: f0d1df20 i5: 0002bc00 fp: fbb97db0 i7: f003ee20
Jul 26 11:13:26 therion kernel: Caller[f003ee20]
--------- >8 syslog >8---------------------------------------------------------

CONFIGURATION:

CPU_#0       TI, STP1021APGA(2.x)       1Mb External cache
CPU_#2       TI, STP1021APGA(2.x)       1Mb External cache

512Mb RAM, 2 SCSI disks: target1, unit0 - IBM 1.05GB; target3, unit0 - IBM 2GB;
1 SCSI CDROM: target6, unit0 - TOSHIBA XM;

Have custom built kernel 2.4.18 (kernel-source-2.4.18-9) with SMP, netfitering,
ext3 enabled. Partitioning is as follows:

/dev/sda1 on / type auto (rw,errors=remount-ro)
proc on /proc type proc (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
/dev/sda2 on /var type ext3 (rw)
/dev/sda4 on /tmp type ext2 (rw)
/dev/sda5 on /home type ext3 (rw)
/dev/sdb1 on /usr type ext3 (rw)
/dev/sdb2 on /var/www type ext3 (rw)

Here is some excerpts from dmesg:

Symbols match kernel version 2.4.18.
Loaded 9 symbols from 1 module.
PROMLIB: Sun Boot Prom Version 3 Revision 2
Jul 26 13:03:52 therion kernel: Linux version 2.4.18-4usmp (root@therion) (gcc v
ersion 2.95.4 20011002 (Debian prerelease)) #1 SMP Wed Jul 23 17:34:27 EDT 2003
Jul 26 13:03:52 therion kernel: ARCH: SUN4M
Jul 26 13:03:52 therion kernel: TYPE: Sun4m SparcStation10/20
Jul 26 13:03:52 therion kernel: Ethernet address: 8:0:20:21:67:ad
Jul 26 13:03:52 therion kernel: Boot time fixup v1.6. 4/Mar/98 Jakub Jelinek (jj
@ultra.linux.cz). Patching kernel for srmmu[TI Viking/MXCC]/iommu
81737MB HIGHMEM available.
Jul 26 13:03:52 therion kernel: On node 0 totalpages: 130359
Jul 26 13:03:52 therion kernel: zone(0): 49152 pages.
Jul 26 13:03:52 therion kernel: zone(1): 0 pages.
Jul 26 13:03:52 therion kernel: zone(2): 81737 pages.
Jul 26 13:03:52 therion kernel: Found CPU 0 <node=ffd70150,mid=8>
Jul 26 13:03:52 therion kernel: Found CPU 1 <node=ffd70530,mid=10>
Jul 26 13:03:52 therion kernel: Found 2 CPU prom device tree node(s).
Jul 26 13:03:52 therion kernel: Power off control detected.
Jul 26 13:03:52 therion kernel: Kernel command line: root=/dev/sda1 ro
Jul 26 13:03:52 therion kernel: Calibrating delay loop... 74.95 BogoMIPS
Jul 26 13:03:52 therion kernel: Memory: 510668k available (1380k kernel code, 27
6k data, 104k init, 326948k highmem) [f0000000,1ff49000]
Jul 26 13:03:52 therion kernel: Dentry-cache hash table entries: 32768 (order: 6
, 262144 bytes)
....
Jul 26 13:03:52 therion kernel: Entering SMP Mode...
Jul 26 13:03:52 therion kernel: Starting CPU 1 at f01aac10
Jul 26 13:03:52 therion kernel: Calibrating delay loop... 74.95 BogoMIPS
Jul 26 13:03:52 therion kernel: Total of 2 Processors activated (149.91 BogoMIPS
).
Jul 26 13:03:52 therion kernel: Waiting on wait_init_idle (map = 0x2)
Jul 26 13:03:52 therion kernel: All processors have done init_idle
Jul 26 13:03:52 therion kernel: IOMMU: impl 1 vers 3 page table at f0d40000 of s
ize 262144 bytes
Jul 26 13:03:52 therion kernel: sbus0: Clock 25.0 MHz
Jul 26 13:03:52 therion kernel: dma0: Revision 2
Jul 26 13:03:52 therion kernel: dma1: Revision 2
Jul 26 13:03:52 therion kernel: ioremap: done with statics, switching to malloc
Jul 26 13:03:52 therion kernel: dma2: ESC Revision 1
Jul 26 13:03:52 therion kernel: Sparc Zilog8530 serial driver version 1.68.2.2
...Jul 26 13:03:52 therion kernel: sunlance.c:v2.00 11/Sep/99 Miguel de Icaza (migu
el@nuclecu.unam.mx)
Jul 26 13:03:52 therion kernel: eth0: LANCE 08:00:20:21:67:ad
Jul 26 13:03:52 therion kernel: eth0: using auto-carrier-detection.
Jul 26 13:03:52 therion kernel: eth1: LANCE 08:00:20:21:67:ad
Jul 26 13:03:52 therion kernel: SCSI subsystem driver Revision: 1.00
Jul 26 13:03:52 therion kernel: esp0: IRQ 36 SCSI ID 7 Clk 40MHz CCYC=25000 CCF=
8 TOut 167 NCR53C9XF(espfast)
Jul 26 13:03:52 therion kernel: esp1: IRQ 53 SCSI ID 7 Clk 40MHz CCYC=25000 CCF=
8 TOut 167 NCR53C9XF(espfast)
Jul 26 13:03:52 therion kernel: ESP: Total of 2 ESP hosts found, 2 actually in u
se.
Jul 26 13:03:52 therion kernel: scsi0 : Sparc ESP100A-FAST
Jul 26 13:03:52 therion kernel: scsi1 : Sparc ESP236-FAST
Jul 26 13:03:52 therion kernel:   Vendor: IBM       Model: DPES31080SUN1.05  Rev
: S80B
Jul 26 13:03:52 therion kernel:   Type:   Direct-Access                      ANS
I SCSI revision: 02
Jul 26 13:03:52 therion kernel:   Vendor: TOSHIBA   Model: XM-4101TASUNSLCD  Rev
: 1084
Jul 26 13:03:52 therion kernel:   Type:   CD-ROM                             ANS
I SCSI revision: 02
Jul 26 13:03:52 therion kernel: Attached scsi disk sda at scsi0, channel 0, id 1
, lun 0
Jul 26 13:03:52 therion kernel: Attached scsi disk sdb at scsi0, channel 0, id 3
, lun 0
Jul 26 13:03:52 therion kernel: esp0: target 1 [period 100ns offset 15 10.00MHz
FAST SCSI-II]
Jul 26 13:03:52 therion kernel: SCSI device sda: 2118144 512-byte hdwr sectors (
1084 MB)
Jul 26 13:03:52 therion kernel: Partition check:
Jul 26 13:03:52 therion kernel:  sda: sda1 sda2 sda3 sda4 sda5 sda6
Jul 26 13:03:52 therion kernel: esp0: target 3 [period 100ns offset 15 10.00MHz
FAST SCSI-II]
Jul 26 13:03:52 therion kernel: SCSI device sdb: 4226725 512-byte hdwr sectors (
2164 MB)
Jul 26 13:03:52 therion kernel:  sdb: sdb1 sdb2 sdb3
Jul 26 13:03:52 therion kernel: Attached scsi CD-ROM sr0 at scsi0, channel 0, id
...

I would appreciate any help. Thank you.

/Erik Karlsson

...................................................................
  GRATIS LOKALNYHETER MED E-POST! http://www.enytt.nu



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