И у меня такая же ошибка есть:

Buffered messages:
Queued messages:

Signal 10, Exception code (0x001C)!

Frame 00: SP = 0x80BB9AB0    PC = 0x805A4E50
Frame 01: SP = 0x80BB9AB0    PC = 0x802DD27C
Frame 02: SP = 0x80BB9AC8    PC = 0x802DD0B0
Frame 03: SP = 0x80BB9B08    PC = 0x802DE610
Frame 04: SP = 0x80BB9B90    PC = 0x802DFB54
Frame 05: SP = 0x80BB9BB0    PC = 0x802E4644
Frame 06: SP = 0x80BB9C98    PC = 0x802E15F8
Frame 07: SP = 0x80BB9CB8    PC = 0x802E1960
Frame 08: SP = 0x80BB9CF0    PC = 0x80312208
Frame 09: SP = 0x80BB9D10    PC = 0x801F27EC
Frame 10: SP = 0x80BB9D28    PC = 0x801F28A8
Frame 11: SP = 0x80BB9D50    PC = 0x8012BA84
Frame 12: SP = 0x80BB9D78    PC = 0x8012BCB0
Frame 13: SP = 0x80BB9E80    PC = 0x801D3544
Frame 14: SP = 0x80BB9E98    PC = 0x801D3530

=== Crash Fault History ===

C2950 Software (C2950-I6Q4L2-M), Version 12.1(13)EA1, RELEASE SOFTWARE (fc1)
Compiled Tue 04-Mar-03 02:14 by yenanh
Signal = 10, Code = 0x1C, Uptime 00:00:16
r0: 00000000, AT: 00000000, v0: 80BB9B1C, v1: 00000001
a0: 80BB9B1C, a1: 40000804, a2: 00000004, a3: 80BB9B1C
t0: 0000E100, t1: 1000E101, t2: 803104F0, t3: FFFF00FF
t4: 803104D8, t5: 80783D54, t6: 80BB9C60, t7: 00000006
s0: 00000001, s1: 00000804, s2: 80BB9B1C, s3: 807ABD70
s4: 00000000, s5: 00000002, s6: 80BB9B18, s7: 00000007
t8: 00000004, t9: 00000000, k0: 00000000, k1: 00000000
gp: 807E8C80, sp: 80BB9AB0, s8: 00000001, ra: 802DD27C
EPC: 805A4E50, ErrEPC: 4B3DFDBE, BadVA: 0xFFBFFEFF, SREG: 1000E103
Cause: 0x0000201C (code 7): Data Bus Error exception

-Traceback= 805A4E50 802DD27C 802DD0B0 802DE610 802DFB54 802E4644 802E15F8 802E1960 80312208 801F27EC 801F28A8 8012BA84
8012BCB0 801D3544 801D3530

Booting after a softreset ...

только перегружается один раз, потом выводит еще кучу ошибок

00:00:09: %PLATFORM_CAT2950-3-PCI_FIND_FAILURE:
The number of asics expected were 1, PCI bus scan found -1

00:00:10: %SW_VLAN-4-IFS_FAILURE: VLAN manager encountered file operation error: call = ifs_read_until (header) / file =
  / code = 21 (Is a directory) / bytes transfered = -1
-Traceback= 803D3328 803CFD4C 801D3544 801D3530

00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: System previously crashed with the following message:
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: Crash info file is flash:/crashinfo/crashinfo_16
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED:
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: C2950 Software (C2950-I6Q4L2-M), Version 12.1(13)EA1, RELEASE SOFTWARE (fc1)
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: Compiled Tue 04-Mar-03 02:14 by yenanh
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: Signal = 10, Code = 0x1C, Uptime 00:00:16
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: r0: 00000000, AT: 00000000, v0: 80BB9B1C, v1: 00000001
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: a0: 80BB9B1C, a1: 40000804, a2: 00000004, a3: 80BB9B1C
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: t0: 0000E100, t1: 1000E101, t2: 803104F0, t3: FFFF00FF
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: t4: 803104D8, t5: 80783D54, t6: 80BB9C60, t7: 00000006
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: s0: 00000001, s1: 00000804, s2: 80BB9B1C, s3: 807ABD70
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: s4: 00000000, s5: 00000002, s6: 80BB9B18, s7: 00000007
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: t8: 00000004, t9: 00000000, k0: 00000000, k1: 00000000
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: gp: 807E8C80, sp: 80BB9AB0, s8: 00000001, ra: 802DD27C
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: EPC: 805A4E50, ErrEPC: 4B3DFDBE, BadVA: 0xFFBFFEFF, SREG: 1000E103
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: Cause: 0x0000201C (code 7): Data Bus Error exception
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED:  Signal 10, Exception code (0x001C)!
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED:
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: Frame 00: SP = 0x80BB9AB0    PC = 0x805A4E50
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: Frame 01: SP = 0x80BB9AB0    PC = 0x802DD27C
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: Frame 02: SP = 0x80BB9AC8    PC = 0x802DD0B0
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: Frame 03: SP = 0x80BB9B08    PC = 0x802DE610
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: Frame 04: SP = 0x80BB9B90    PC = 0x802DFB54
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: Frame 05: SP = 0x80BB9BB0    PC = 0x802E4644
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: Frame 06: SP = 0x80BB9C98    PC = 0x802E15F8
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: Frame 07: SP = 0x80BB9CB8    PC = 0x802E1960
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: Frame 08: SP = 0x80BB9CF0    PC = 0x80312208
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: Frame 09: SP = 0x80BB9D10    PC = 0x801F27EC
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: Frame 10: SP = 0x80BB9D28    PC = 0x801F28A8
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: Frame 11: SP = 0x80BB9D50    PC = 0x8012BA84
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: Frame 12: SP = 0x80BB9D78    PC = 0x8012BCB0
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: Frame 13: SP = 0x80BB9E80    PC = 0x801D3544
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: Frame 14: SP = 0x80BB9E98    PC = 0x801D3530
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED:
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED:
00:01:10: %PLATFORM_CATALYST2950-1-CRASHED: -Traceback= 805A4E50 802DD27C 802DD0B0 802DE610 802DFB54 802E4644 802E15F8 8
02E1960 80312208 801F27EC 801F28A8 8012BA84 8012BCB0 801D3544 801D3530
switch>

И в конце - приглашение консоли