kernel BUG at jfs_dmap.c:776 (2.4.21)

Christian Kujau (evil@g-house.de)
Mon, 23 Jun 2003 17:18:44 +0200


Hi,

while doing some benchmarks, i noticed a segfault when trying to mount a
newly created JFS. mkfs.jfs passes, but mount gives:

BUG at jfs_dmap.c:776 assert(hint < mapSize)
kernel BUG at jfs_dmap.c:776!
mount(1055): Kernel Bug 1
pc = [<fffffffc003236b4>] ra = [<fffffffc003236a8>] ps = 0000 Not
tainted
v0 = 000000000000001e t0 = 0000000000000001 t1 = 0000000000000000
t2 = fffffc00011d2948 t3 = 0000000000000000 t4 = ffffffff00000000
t5 = 0000000000000001 t6 = 343c0a29657a6953 t7 = fffffc0002cf8000
a0 = 0000000000000000 a1 = 0000000000000001 a2 = 0000000000000001
a3 = 0000000000000001 a4 = 0000000000000001 a5 = 0000000000000002
t8 = 0000000000000004 t9 = 0000000000001c0e t10= 0000000000001c0f
t11= fffffc00011f0988 pv = fffffc000101fb90 at = fffffc00011f0988
gp = fffffffc00347c88 sp = fffffc0002cfb9e8
Trace:fffffc0001029f50 fffffc0001053b88 fffffc0001054838
fffffc000103e1ac fffffc00010168b0 fffffc000105808c fffffc00010585a4
fffffc0001058434 fffffc0001070b28 fffffc0001070f3c fffffc0001070d18
fffffc000107155c fffffc0001071538 fffffc0001010d30 fffffc0001010c88
Code: 22106a0c 47e90411 6b5b4106 27ba0002 23bd45e0 00000081
<c3fffecb> 47ff041f

this is with vanilla 2.4.21 (Alpha), compiled with gcc3.3, glibc 2.3.1,
util-linux 2.11z.

thanks,
Christian.

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