Opened 16 years ago
Closed 16 years ago
#2595 closed bug (fixed)
PANIC: IORequest::_CopyData(): invalid range: (208072704, 1838)
| Reported by: | axeld | Owned by: | axeld |
|---|---|---|---|
| Priority: | blocker | Milestone: | R1/alpha1 |
| Component: | System/Kernel | Version: | R1/pre-alpha1 |
| Keywords: | Cc: | ||
| Blocked By: | Blocking: | ||
| Platform: | All |
Description (last modified by )
Happened during compilation of pe (DEBUG=1 jam -q pe). KDL session:
PANIC: IORequest::_CopyData(): invalid range: (208072704, 1838)
Welcome to Kernel Debugging Land...
Thread 23 "scsi scheduler" running on CPU 0
kdebug> sc
stack trace for thread 23 "scsi scheduler"
kernel stack: 0x9f4ed000 to 0x9f4f1000
frame caller <image>:function + offset
0 9f4f0ac8 (+ 48) 80056b29 <kernel>:invoke_debugger_command + 0x00ed
1 9f4f0af8 (+ 64) 80056921 <kernel>:invoke_pipe_segment__FP21debugger_command_pipelPc + 0x0079
2 9f4f0b38 (+ 64) 80056c69 <kernel>:invoke_debugger_command_pipe + 0x009d
3 9f4f0b78 (+ 48) 80057b44 <kernel>:_ParseCommandPipe__16ExpressionParserRi + 0x0234
4 9f4f0ba8 (+ 48) 800574fa <kernel>:EvaluateCommand__16ExpressionParserPCcRi + 0x01de
5 9f4f0bd8 (+ 224) 80058f10 <kernel>:evaluate_debug_command + 0x0088
6 9f4f0cb8 (+ 64) 80054f9e <kernel>:kernel_debugger_loop__Fv + 0x01ae
7 9f4f0cf8 (+ 48) 80055b37 <kernel>:kernel_debugger + 0x0117
8 9f4f0d28 (+ 192) 80055a15 <kernel>:panic + 0x0029
9 9f4f0de8 (+ 64) 8006d9f3 <kernel>:_CopyData__9IORequestPvxUlb + 0x006b
10 9f4f0e28 (+ 64) 8006d981 <kernel>:CopyData__9IORequestPCvxUl + 0x0029
11 9f4f0e68 (+ 112) 8006c3d2 <kernel>:Finish__11IOOperation + 0x0206
12 9f4f0ed8 (+ 80) 8006738c <kernel>:_Finisher__11IOScheduler + 0x012c
13 9f4f0f28 (+ 96) 800679fb <kernel>:_GetNextUnscheduledRequest__11IOScheduler + 0x0177
14 9f4f0f88 (+ 48) 80067b3d <kernel>:_Scheduler__11IOScheduler + 0x0015
15 9f4f0fb8 (+ 32) 80067bea <kernel>:_SchedulerThread__11IOSchedulerPv + 0x0012
16 9f4f0fd8 (+ 32) 8004d1db <kernel>:_create_kernel_thread_kentry__Fv + 0x001b
17 9f4f0ff8 (+1622208520) 8004d178 <kernel>:thread_kthread_exit__Fv + 0x0000
kdebug> call 11 -1
thread 23, scsi scheduler
9f4f0e68 8006c3d2 <kernel>:Finish__11IOOperation(0x90c94fa0)
kdebug> io_operation _arg1
io_operation at 0x90c94fa0
parent: 0x90c8e660
status: No error
dma buffer: 0x90c76660
offset: 208072704 (original: 208072768)
length: 29184 (original: 29120)
transferred: 29120
block size: 512
saved vec index: 52428
saved vec length: 52428
r/w: read
phase: do all
partial begin: yes
partial end: no
bounce buffer: yes
kdebug> io_request _parent
io_request at 0x90c8e660
parent: 0x9248ebf8
status: No Error (1)
mutex: 0x90c8e67c
IOBuffer: 0x90d40a40
offset: 208072768
length: 131008
transfer size: 131008
relative offset: 0
pending children: 6
flags: 0x0
team: 1063
r/w: read
partial transfer: no
finished cvar: 0x90c8e6cc
iteration:
vec index: 1
vec offset: 0
remaining bytes: 0
callbacks:
finished 0x00000000, cookie 0x00000000
iteration 0x00000000, cookie 0x00000000
children:
0x90c94fa0
0x90c95000
0x90c95050
0x90c950a0
0x90c950f0
0x90c95140
kdebug> dma_buffer 0x90c76660
DMABuffer at 0x90c76660
bounce buffer: 0x80946000 (physical 0xedf1000)
bounce buffer size: 16384
vecs: 16
[0] 0x0edf1000, 1902
[1] 0x1198b8d4, 1836
[2] 0x0edf176e, 1838
[3] 0x1198b8d4, 1836
[4] 0x0edf1e9c, 1838
[5] 0x1198b8d4, 1836
[6] 0x0edf25ca, 1838
[7] 0x1198b8d4, 1836
[8] 0x0edf2cf8, 1838
[9] 0x1198b8d4, 1836
[10] 0x0edf3426, 1838
[11] 0x1198b8d4, 1836
[12] 0x0edf3b54, 1838
[13] 0x1198b8d4, 1836
[14] 0x0edf4282, 1838
[15] 0x1198b8d4, 1564
kdebug> io_buffer _buffer
IOBuffer at 0x90d40a40
origin: user
kind: virtual
length: 131008
capacity: 1
vecs: 1
[0] 0x18c948d3, 131008
kdebug> io_request _parent
io_request at 0x9248ebf8
parent: 0x00000000
status: No Error (1)
mutex: 0x9248ec14
IOBuffer: 0x90d40d40
offset: 8256
length: 131008
transfer size: 131008
relative offset: 0
pending children: 1
flags: 0x0
team: 1063
r/w: read
partial transfer: no
finished cvar: 0x9248ec64
iteration:
vec index: 1
vec offset: 0
remaining bytes: 0
callbacks:
finished 0x80095840, cookie 0x90d967d0
iteration 0x800955c8, cookie 0x90d967d0
children:
0x90c8e660
kdebug> child1=0x90c94fa0
[...]
kdebug> io_operation child1
io_operation at 0x90c94fa0
parent: 0x90c8e660
status: No error
dma buffer: 0x90c76660
offset: 208072704 (original: 208072768)
length: 29184 (original: 29120)
transferred: 29120
block size: 512
saved vec index: 52428
saved vec length: 52428
r/w: read
phase: do all
partial begin: yes
partial end: no
bounce buffer: yes
kdebug> io_operation child2
io_operation at 0x90c95000
parent: 0x90c8e660
status: No error
dma buffer: 0x90c7672c
offset: 208101888 (original: 208101888)
length: 22016 (original: 22016)
transferred: 22016
block size: 512
saved vec index: 1
saved vec length: 512
r/w: read
phase: do all
partial begin: no
partial end: no
bounce buffer: yes
kdebug> io_operation child3
io_operation at 0x90c95050
parent: 0x90c8e660
status: No error
dma buffer: 0x90c767f8
offset: 208123904 (original: 208123904)
length: 31744 (original: 31744)
transferred: 31744
block size: 512
saved vec index: 52428
saved vec length: 52428
r/w: read
phase: do all
partial begin: no
partial end: no
bounce buffer: yes
kdebug> io_operation child4
io_operation at 0x90c950a0
parent: 0x90c8e660
status: No error
dma buffer: 0x90c768c4
offset: 208155648 (original: 208155648)
length: 13824 (original: 13824)
transferred: 13824
block size: 512
saved vec index: 52428
saved vec length: 52428
r/w: read
phase: do all
partial begin: no
partial end: no
bounce buffer: yes
kdebug> io_operation child5
io_operation at 0x90c950f0
parent: 0x90c8e660
status: No error
dma buffer: 0x90c76990
offset: 208169472 (original: 208169472)
length: 29696 (original: 29696)
transferred: 29696
block size: 512
saved vec index: 52428
saved vec length: 52428
r/w: read
phase: do all
partial begin: no
partial end: no
bounce buffer: yes
kdebug> io_operation child6
io_operation at 0x90c95140
parent: 0x90c8e660
status: No error
dma buffer: 0x90c76a5c
offset: 208199168 (original: 208199168)
length: 4608 (original: 4608)
transferred: 4608
block size: 512
saved vec index: 52428
saved vec length: 52428
r/w: read
phase: do all
partial begin: no
partial end: no
bounce buffer: yes
Change History (4)
comment:1 by , 16 years ago
| Description: | modified (diff) |
|---|
comment:2 by , 16 years ago
The DMABuffer doesn't really look good, I just have no time yet to look into it.
comment:3 by , 16 years ago
Might have been fixed in hrev26905 - at least that would perfectly explain the DMABuffer.
comment:4 by , 16 years ago
| Resolution: | → fixed |
|---|---|
| Status: | new → closed |
Indeed fixed, added a test case to the dma_resource_test driver in hrev26917.
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Happened with hrev26898, btw; also tried to cleanup the KDL session a bit.