Re: Sparc: Kernel 2.6.13 to 2.6.15-rc2 bug when running X11
From: J.O. Aho
Date: Sat Dec 10 2005 - 18:24:05 EST
On Sat, 10 Dec 2005, David S. Miller wrote:
From: "J.O. Aho" <trizt@xxxxxxxxx>
Date: Sat, 10 Dec 2005 23:52:01 +0100 (CET)
IO[X:6761]:
remap_pfn_range(s[71800000]e[71c10000],f[71800000],pfn[1fc0060],sz[2000],prot[80000000000006b0])
IO[X:6761]:
remap_pfn_range(s[71800000]e[71c10000],f[71802000],pfn[1fc0060],sz[2000],prot[80000000000006b0])
That's the problem, we're being called twice over the same
area.
Now we need to figure out why. Please add this patch and give
us the new log output.
The output got a lot longer now, but that was expected.
I'm going to a hockey game so I won't be able to look at this until
later this evening.
I hope you will have a nice day with the hockey.
Here is the whole output (output generated by the two patches and the bug
message too):
sbusfb_mmap: start[70400000] size[1010000] off[5000000]
sbusfb_mmap: page[0] map_size[0]
sbusfb_mmap: page[10000] map_size[0]
sbusfb_mmap: page[20000] map_size[0]
sbusfb_mmap: page[30000] map_size[0]
sbusfb_mmap: page[40000] map_size[0]
sbusfb_mmap: page[50000] map_size[0]
sbusfb_mmap: page[60000] map_size[0]
sbusfb_mmap: page[70000] map_size[0]
sbusfb_mmap: page[80000] map_size[0]
sbusfb_mmap: page[90000] map_size[0]
sbusfb_mmap: page[a0000] map_size[0]
sbusfb_mmap: page[b0000] map_size[0]
sbusfb_mmap: page[c0000] map_size[0]
sbusfb_mmap: page[d0000] map_size[0]
sbusfb_mmap: page[e0000] map_size[0]
sbusfb_mmap: page[f0000] map_size[0]
sbusfb_mmap: page[100000] map_size[0]
sbusfb_mmap: page[110000] map_size[0]
sbusfb_mmap: page[120000] map_size[0]
sbusfb_mmap: page[130000] map_size[0]
sbusfb_mmap: page[140000] map_size[0]
sbusfb_mmap: page[150000] map_size[0]
sbusfb_mmap: page[160000] map_size[0]
sbusfb_mmap: page[170000] map_size[0]
sbusfb_mmap: page[180000] map_size[0]
sbusfb_mmap: page[190000] map_size[0]
sbusfb_mmap: page[1a0000] map_size[0]
sbusfb_mmap: page[1b0000] map_size[0]
sbusfb_mmap: page[1c0000] map_size[0]
sbusfb_mmap: page[1d0000] map_size[0]
sbusfb_mmap: page[1e0000] map_size[0]
sbusfb_mmap: page[1f0000] map_size[0]
sbusfb_mmap: page[200000] map_size[0]
sbusfb_mmap: page[210000] map_size[0]
sbusfb_mmap: page[220000] map_size[0]
sbusfb_mmap: page[230000] map_size[0]
sbusfb_mmap: page[240000] map_size[0]
sbusfb_mmap: page[250000] map_size[0]
sbusfb_mmap: page[260000] map_size[0]
sbusfb_mmap: page[270000] map_size[0]
sbusfb_mmap: page[280000] map_size[0]
sbusfb_mmap: page[290000] map_size[0]
sbusfb_mmap: page[2a0000] map_size[0]
sbusfb_mmap: page[2b0000] map_size[0]
sbusfb_mmap: page[2c0000] map_size[0]
sbusfb_mmap: page[2d0000] map_size[0]
sbusfb_mmap: page[2e0000] map_size[0]
sbusfb_mmap: page[2f0000] map_size[0]
sbusfb_mmap: page[300000] map_size[0]
sbusfb_mmap: page[310000] map_size[0]
sbusfb_mmap: page[320000] map_size[0]
sbusfb_mmap: page[330000] map_size[0]
sbusfb_mmap: page[340000] map_size[0]
sbusfb_mmap: page[350000] map_size[0]
sbusfb_mmap: page[360000] map_size[0]
sbusfb_mmap: page[370000] map_size[0]
sbusfb_mmap: page[380000] map_size[0]
sbusfb_mmap: page[390000] map_size[0]
sbusfb_mmap: page[3a0000] map_size[0]
sbusfb_mmap: page[3b0000] map_size[0]
sbusfb_mmap: page[3c0000] map_size[0]
sbusfb_mmap: page[3d0000] map_size[0]
sbusfb_mmap: page[3e0000] map_size[0]
sbusfb_mmap: page[3f0000] map_size[0]
sbusfb_mmap: page[400000] map_size[0]
sbusfb_mmap: page[410000] map_size[0]
sbusfb_mmap: page[420000] map_size[0]
sbusfb_mmap: page[430000] map_size[0]
sbusfb_mmap: page[440000] map_size[0]
sbusfb_mmap: page[450000] map_size[0]
sbusfb_mmap: page[460000] map_size[0]
sbusfb_mmap: page[470000] map_size[0]
sbusfb_mmap: page[480000] map_size[0]
sbusfb_mmap: page[490000] map_size[0]
sbusfb_mmap: page[4a0000] map_size[0]
sbusfb_mmap: page[4b0000] map_size[0]
sbusfb_mmap: page[4c0000] map_size[0]
sbusfb_mmap: page[4d0000] map_size[0]
sbusfb_mmap: page[4e0000] map_size[0]
sbusfb_mmap: page[4f0000] map_size[0]
sbusfb_mmap: page[500000] map_size[0]
sbusfb_mmap: page[510000] map_size[0]
sbusfb_mmap: page[520000] map_size[0]
sbusfb_mmap: page[530000] map_size[0]
sbusfb_mmap: page[540000] map_size[0]
sbusfb_mmap: page[550000] map_size[0]
sbusfb_mmap: page[560000] map_size[0]
sbusfb_mmap: page[570000] map_size[0]
sbusfb_mmap: page[580000] map_size[0]
sbusfb_mmap: page[590000] map_size[0]
sbusfb_mmap: page[5a0000] map_size[0]
sbusfb_mmap: page[5b0000] map_size[0]
sbusfb_mmap: page[5c0000] map_size[0]
sbusfb_mmap: page[5d0000] map_size[0]
sbusfb_mmap: page[5e0000] map_size[0]
sbusfb_mmap: page[5f0000] map_size[0]
sbusfb_mmap: page[600000] map_size[0]
sbusfb_mmap: page[610000] map_size[0]
sbusfb_mmap: page[620000] map_size[0]
sbusfb_mmap: page[630000] map_size[0]
sbusfb_mmap: page[640000] map_size[0]
sbusfb_mmap: page[650000] map_size[0]
sbusfb_mmap: page[660000] map_size[0]
sbusfb_mmap: page[670000] map_size[0]
sbusfb_mmap: page[680000] map_size[0]
sbusfb_mmap: page[690000] map_size[0]
sbusfb_mmap: page[6a0000] map_size[0]
sbusfb_mmap: page[6b0000] map_size[0]
sbusfb_mmap: page[6c0000] map_size[0]
sbusfb_mmap: page[6d0000] map_size[0]
sbusfb_mmap: page[6e0000] map_size[0]
sbusfb_mmap: page[6f0000] map_size[0]
sbusfb_mmap: page[700000] map_size[0]
sbusfb_mmap: page[710000] map_size[0]
sbusfb_mmap: page[720000] map_size[0]
sbusfb_mmap: page[730000] map_size[0]
sbusfb_mmap: page[740000] map_size[0]
sbusfb_mmap: page[750000] map_size[0]
sbusfb_mmap: page[760000] map_size[0]
sbusfb_mmap: page[770000] map_size[0]
sbusfb_mmap: page[780000] map_size[0]
sbusfb_mmap: page[790000] map_size[0]
sbusfb_mmap: page[7a0000] map_size[0]
sbusfb_mmap: page[7b0000] map_size[0]
sbusfb_mmap: page[7c0000] map_size[0]
sbusfb_mmap: page[7d0000] map_size[0]
sbusfb_mmap: page[7e0000] map_size[0]
sbusfb_mmap: page[7f0000] map_size[0]
sbusfb_mmap: page[800000] map_size[0]
sbusfb_mmap: page[810000] map_size[0]
sbusfb_mmap: page[820000] map_size[0]
sbusfb_mmap: page[830000] map_size[0]
sbusfb_mmap: page[840000] map_size[0]
sbusfb_mmap: page[850000] map_size[0]
sbusfb_mmap: page[860000] map_size[0]
sbusfb_mmap: page[870000] map_size[0]
sbusfb_mmap: page[880000] map_size[0]
sbusfb_mmap: page[890000] map_size[0]
sbusfb_mmap: page[8a0000] map_size[0]
sbusfb_mmap: page[8b0000] map_size[0]
sbusfb_mmap: page[8c0000] map_size[0]
sbusfb_mmap: page[8d0000] map_size[0]
sbusfb_mmap: page[8e0000] map_size[0]
sbusfb_mmap: page[8f0000] map_size[0]
sbusfb_mmap: page[900000] map_size[0]
sbusfb_mmap: page[910000] map_size[0]
sbusfb_mmap: page[920000] map_size[0]
sbusfb_mmap: page[930000] map_size[0]
sbusfb_mmap: page[940000] map_size[0]
sbusfb_mmap: page[950000] map_size[0]
sbusfb_mmap: page[960000] map_size[0]
sbusfb_mmap: page[970000] map_size[0]
sbusfb_mmap: page[980000] map_size[0]
sbusfb_mmap: page[990000] map_size[0]
sbusfb_mmap: page[9a0000] map_size[0]
sbusfb_mmap: page[9b0000] map_size[0]
sbusfb_mmap: page[9c0000] map_size[0]
sbusfb_mmap: page[9d0000] map_size[0]
sbusfb_mmap: page[9e0000] map_size[0]
sbusfb_mmap: page[9f0000] map_size[0]
sbusfb_mmap: page[a00000] map_size[0]
sbusfb_mmap: page[a10000] map_size[0]
sbusfb_mmap: page[a20000] map_size[0]
sbusfb_mmap: page[a30000] map_size[0]
sbusfb_mmap: page[a40000] map_size[0]
sbusfb_mmap: page[a50000] map_size[0]
sbusfb_mmap: page[a60000] map_size[0]
sbusfb_mmap: page[a70000] map_size[0]
sbusfb_mmap: page[a80000] map_size[0]
sbusfb_mmap: page[a90000] map_size[0]
sbusfb_mmap: page[aa0000] map_size[0]
sbusfb_mmap: page[ab0000] map_size[0]
sbusfb_mmap: page[ac0000] map_size[0]
sbusfb_mmap: page[ad0000] map_size[0]
sbusfb_mmap: page[ae0000] map_size[0]
sbusfb_mmap: page[af0000] map_size[0]
sbusfb_mmap: page[b00000] map_size[0]
sbusfb_mmap: page[b10000] map_size[0]
sbusfb_mmap: page[b20000] map_size[0]
sbusfb_mmap: page[b30000] map_size[0]
sbusfb_mmap: page[b40000] map_size[0]
sbusfb_mmap: page[b50000] map_size[0]
sbusfb_mmap: page[b60000] map_size[0]
sbusfb_mmap: page[b70000] map_size[0]
sbusfb_mmap: page[b80000] map_size[0]
sbusfb_mmap: page[b90000] map_size[0]
sbusfb_mmap: page[ba0000] map_size[0]
sbusfb_mmap: page[bb0000] map_size[0]
sbusfb_mmap: page[bc0000] map_size[0]
sbusfb_mmap: page[bd0000] map_size[0]
sbusfb_mmap: page[be0000] map_size[0]
sbusfb_mmap: page[bf0000] map_size[0]
sbusfb_mmap: page[c00000] map_size[0]
sbusfb_mmap: page[c10000] map_size[0]
sbusfb_mmap: page[c20000] map_size[0]
sbusfb_mmap: page[c30000] map_size[0]
sbusfb_mmap: page[c40000] map_size[0]
sbusfb_mmap: page[c50000] map_size[0]
sbusfb_mmap: page[c60000] map_size[0]
sbusfb_mmap: page[c70000] map_size[0]
sbusfb_mmap: page[c80000] map_size[0]
sbusfb_mmap: page[c90000] map_size[0]
sbusfb_mmap: page[ca0000] map_size[0]
sbusfb_mmap: page[cb0000] map_size[0]
sbusfb_mmap: page[cc0000] map_size[0]
sbusfb_mmap: page[cd0000] map_size[0]
sbusfb_mmap: page[ce0000] map_size[0]
sbusfb_mmap: page[cf0000] map_size[0]
sbusfb_mmap: page[d00000] map_size[0]
sbusfb_mmap: page[d10000] map_size[0]
sbusfb_mmap: page[d20000] map_size[0]
sbusfb_mmap: page[d30000] map_size[0]
sbusfb_mmap: page[d40000] map_size[0]
sbusfb_mmap: page[d50000] map_size[0]
sbusfb_mmap: page[d60000] map_size[0]
sbusfb_mmap: page[d70000] map_size[0]
sbusfb_mmap: page[d80000] map_size[0]
sbusfb_mmap: page[d90000] map_size[0]
sbusfb_mmap: page[da0000] map_size[0]
sbusfb_mmap: page[db0000] map_size[0]
sbusfb_mmap: page[dc0000] map_size[0]
sbusfb_mmap: page[dd0000] map_size[0]
sbusfb_mmap: page[de0000] map_size[0]
sbusfb_mmap: page[df0000] map_size[0]
sbusfb_mmap: page[e00000] map_size[0]
sbusfb_mmap: page[e10000] map_size[0]
sbusfb_mmap: page[e20000] map_size[0]
sbusfb_mmap: page[e30000] map_size[0]
sbusfb_mmap: page[e40000] map_size[0]
sbusfb_mmap: page[e50000] map_size[0]
sbusfb_mmap: page[e60000] map_size[0]
sbusfb_mmap: page[e70000] map_size[0]
sbusfb_mmap: page[e80000] map_size[0]
sbusfb_mmap: page[e90000] map_size[0]
sbusfb_mmap: page[ea0000] map_size[0]
sbusfb_mmap: page[eb0000] map_size[0]
sbusfb_mmap: page[ec0000] map_size[0]
sbusfb_mmap: page[ed0000] map_size[0]
sbusfb_mmap: page[ee0000] map_size[0]
sbusfb_mmap: page[ef0000] map_size[0]
sbusfb_mmap: page[f00000] map_size[0]
sbusfb_mmap: page[f10000] map_size[0]
sbusfb_mmap: page[f20000] map_size[0]
sbusfb_mmap: page[f30000] map_size[0]
sbusfb_mmap: page[f40000] map_size[0]
sbusfb_mmap: page[f50000] map_size[0]
sbusfb_mmap: page[f60000] map_size[0]
sbusfb_mmap: page[f70000] map_size[0]
sbusfb_mmap: page[f80000] map_size[0]
sbusfb_mmap: page[f90000] map_size[0]
sbusfb_mmap: page[fa0000] map_size[0]
sbusfb_mmap: page[fb0000] map_size[0]
sbusfb_mmap: page[fc0000] map_size[0]
sbusfb_mmap: page[fd0000] map_size[0]
sbusfb_mmap: page[fe0000] map_size[0]
sbusfb_mmap: page[ff0000] map_size[0]
sbusfb_mmap: page[1000000] map_size[0]
sbusfb_mmap: Done
sbusfb_mmap: start[71800000] size[410000] off[4000000]
sbusfb_mmap: page[0] map_size[2000]
sbusfb_mmap: map_size is now 2000
IO[X:6712]:
remap_pfn_range(s[71800000]e[71c10000],f[71800000],pfn[1fc0060],sz[2000],prot[80000000000006b0])
sbusfb_mmap: page[2000] map_size[2000]
sbusfb_mmap: map_size is now 2000
IO[X:6712]:
remap_pfn_range(s[71800000]e[71c10000],f[71802000],pfn[1fc0060],sz[2000],prot[80000000000006b0])
kernel BUG at arch/sparc64/mm/generic.c:77!
\|/ ____ \|/
"@'/ .. \`@"
/_| \__/ |_\
\__U_/
X(6712): Kernel bad sw trap 5 [#1]
TSTATE: 0000000011009603 TPC: 0000000000434da0 TNPC: 0000000000434da4 Y:
00000000 Not tainted
TPC: <io_remap_pfn_range+0x400/0x420>
g0: fffff800024df261 g1: 0000000000669400 g2: 0000000000000001 g3:
00000000000047ff
g4: fffff80001f34fc0 g5: 0000000000000010 g6: fffff800024d0000 g7:
0000000000000000
o0: 000000000000002f o1: 000000000061f1e8 o2: 000000000000004d o3:
0000000011812000
o4: 000001fc00610000 o5: fffff80002578c00 sp: fffff800024df241 ret_pc:
0000000000434d98
RPC: <io_remap_pfn_range+0x3f8/0x420>
l0: 0000000071802000 l1: 000001fb8edfe000 l2: 0000000071804000 l3:
000001fb8edfe000
l4: 000001fb8edfe000 l5: e000000000000f8a l6: a000000000000f8a l7:
c000000000000f8a
i0: 0000000071804000 i1: 0000000071802000 i2: 0000000000000000 i3:
0000000071802000
i4: 80000000000006b0 i5: fffff800010c000c i6: fffff800024df361 i7:
000000000053b270
I7: <sbusfb_mmap_helper+0x150/0x1a0>
Caller[000000000053b270]: sbusfb_mmap_helper+0x150/0x1a0
Caller[00000000005335b4]: fb_mmap+0x134/0x160
Caller[0000000000478748]: do_mmap_pgoff+0x368/0x720
Caller[00000000004161d8]: sys_mmap+0xf8/0x160
Caller[0000000000406c94]: linux_sparc_syscall32+0x34/0x40
Caller[0000000000286378]: 0x286378
Instruction DUMP: 9210204d 7fff6e02 901221e8 <91d02005> 7ffff76f
b13ee000 81cfe008 01000000 30680003
--
//Aho
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