【发布时间】:2017-10-09 02:03:44
【问题描述】:
我知道我可以在很多地方问这个问题,但我想我会在这里尝试。我似乎已经从 Maxima 的好人那里获得了尽可能多的帮助。
我使用 SBCL 运行 Maxima 并不断出错;
INFO: Binding stack guard page unprotected
Binding stack guard page temporarily disabled: proceed with caution
Maxima encountered a Lisp error:
Binding stack exhausted.
PROCEED WITH CAUTION.
Automatically continuing.
To enable the Lisp debugger set *debugger-hook* to nil.
INFO: Binding stack guard page reprotected
我通过为动态空间大小和控制堆栈大小添加更大的值修改了对Maxima(它的可执行文件)的调用,并且我查看了./.../sbcl -help 用于添加到 maxima 可执行文件中的 $MAXIMA_LISP_OPTIONS 的任何参数想法。
此外,我通常在运行之前执行这些操作(尽管我认为它们是不必要的,因为操作系统很智能,也许最后一个需要摆弄);
sudo fstrim -v /
echo 3 | sudo tee /proc/sys/vm/drop_caches
echo 262144 | sudo tee /proc/sys/vm/max_map_count
在做我的 Maxima 工作时经过几次计算,我投入了几个
:lisp (sb-ext:gc :full t)
希望避免此错误。我不太了解 lisp,当然也不了解垃圾收集的所有内容。
尽管我在 Maxima 工作中使用了记忆,但我的计算有点密集和递归。 inxi -b 将我的电脑描述为,
System: Host: XXX-MacBookPro Kernel: 4.10.0-33-generic x86_64 (64 bit) Desktop: Cinnamon 3.4.6
Distro: Linux Mint 18.2 Sonya
Machine: System: Apple (portable) product: MacBookPro11 3 v: 1.0
Mobo: Apple model: Mac-2BD1B313 v: MacBookPro11 3
Bios: Apple v: MBP112.88Z.0138.B25.1702171721 date: 02/17/2017
CPU: Quad core Intel Core i7-4980HQ (-HT-MCP-) speed/max: 1402/4000 MHz
Graphics: Card: NVIDIA GK107M [GeForce GT 750M Mac Edition]
Display Server: X.Org 1.18.4 drivers: nvidia (unloaded: fbdev,vesa,nouveau)
Resolution: 2880x1800@59.99hz
GLX Renderer: GeForce GT 750M/PCIe/SSE2 GLX Version: 4.5.0 NVIDIA 375.66
Network: Card-1: Broadcom BCM4360 802.11ac Wireless Network Adapter driver: wl
Card-2: Broadcom NetXtreme BCM57762 Gigabit Ethernet PCIe driver: tg3
Drives: HDD Total Size: 1000.6GB (17.5% used)
Info: Processes: 291 Uptime: 43 min Memory: 3366.6/15953.7MB Client: Shell (bash) inxi: 2.2.35
我的 Maxima 和 SBCL 是由 GIT 构建的,并且相当新~大约 2 周,并且已经通过了所有的 make 测试。另外我的交换看起来像;
XXX@XXX-MacBookPro ~/ResearchWC $ cat /proc/swaps
Filename Type Size Used Priority
/70GiB.swap file 73400316 0 -2
/dev/sda7 partition 25564776 0 -1
我经常基本上内存不足,大约 20-30G 进入交换空间。
通常它似乎最终会挂起(说 100 小时后,我注意到 htop 停止显示某些活动并且风扇不会上下),我认为有时会隐藏耗尽错误在嵌入式递归调用中。我在上面收到此错误消息是因为我避免在我想要的递归级别调用函数,而是在终端“手动”构建它们。例如,我不是只调用 fib(10) 之类的东西,而是依次调用 fib(1)、fib(2)、fib(3),其中每个先前的值都被记忆。
我有时间,但似乎不知道如何最大化我的交换 - 观看 htop 我从未见过它使用超过约 25%。
1.) 有谁知道我还能用 SBCL 做什么来避免这些错误?
2.) 在这些情况下运行另一个 lisp 会更好吗? ecl、cml等?
提前感谢您的任何建议,如果需要,我可以提供更多详细信息。
更新
在增加了动态空间大小、堆栈大小和绑定堆栈大小之后,这次崩溃时我遇到了堆限制而不是绑定堆栈。附件是回溯的输出(不确定两个寄存器 pc 和 fp 是什么...... - 程序计数器和帧指针?)。我也用 trace(residue,taylor) 运行了这个,但从来没有看到任何可疑的东西......
ldb> backtrace
Backtrace:
0: SB-BIGNUM::MULTIPLY-BIGNUM-AND-FIXNUM, pc = 0x21cb1336, fp = 0x7ffff3943f18
1: SB-KERNEL::TWO-ARG-*, pc = 0x21cb00a7, fp = 0x7ffff3943f98
2: MAXIMA::CTIMES, pc = 0x21e076b4, fp = 0x7ffff3943fc0
3: MAXIMA::PCTIMES, pc = 0x21de5f4c, fp = 0x7ffff3943ff0
4: MAXIMA::PCTIMES1, pc = 0x21e78f1e, fp = 0x7ffff3944048
5: MAXIMA::PCTIMES, pc = 0x21de6033, fp = 0x7ffff3944078
6: MAXIMA::PCETIMES1, pc = 0x21fe0560, fp = 0x7ffff39440d8
7: MAXIMA::PTIMES1, pc = 0x21f457e5, fp = 0x7ffff3944148
8: MAXIMA::PTIMES, pc = 0x21db6561, fp = 0x7ffff3944180
9: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff39441b8
10: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39441f0
11: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944228
12: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944260
13: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944298
14: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39442d0
15: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944308
16: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944340
17: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944378
18: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39443b0
19: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff39443e8
20: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944420
21: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944458
22: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944490
23: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff39444c8
24: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944500
25: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944538
26: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944570
27: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff39445a8
28: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39445e0
29: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944618
30: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944650
31: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944688
32: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39446c0
33: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff39446f8
34: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944730
35: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944768
36: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39447a0
37: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff39447d8
38: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944810
39: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944848
40: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944880
41: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff39448b8
42: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39448f0
43: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944928
44: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944960
45: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944998
46: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39449d0
47: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944a08
48: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944a40
49: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944a78
50: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944ab0
51: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944ae8
52: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944b20
53: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944b58
54: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944b90
55: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944bc8
56: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944c00
57: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944c38
58: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944c70
59: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944ca8
60: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944ce0
61: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944d18
62: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944d50
63: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944d88
64: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944dc0
65: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944df8
66: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944e30
67: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944e68
68: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944ea0
69: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944ed8
70: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944f10
71: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944f48
72: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944f80
73: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944fb8
74: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944ff0
75: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3945028
76: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3945060
77: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3945098
78: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39450d0
79: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3945108
80: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3945140
81: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3945178
82: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39451b0
83: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff39451e8
84: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3945220
85: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3945258
86: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3945290
87: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff39452c8
88: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3945300
89: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3945338
90: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3945370
91: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff39453a8
92: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39453e0
93: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3945418
94: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3945450
95: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3945488
96: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39454c0
97: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff39454f8
98: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3945530
【问题讨论】:
-
栈和堆是两个不同的东西。 “绑定堆栈已用尽”通常表示递归深度较高。大堆/交换将由内存泄漏或无法释放所有内存的 GC 引起。最好的询问地点是 SBCL 邮件列表。另一种实现是 Clozure CL。
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@RainerJoswig 有没有办法确定 Common Lisp 中的最大调用堆栈深度?或者如果不是专门针对SBCL?我似乎记得有一个常数可以告诉最大堆栈深度,但网络搜索似乎没有找到任何这样的东西。也许这是我的一厢情愿。
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我看到提到“最大调用堆栈深度”的唯一地方是用于分析,sbcl.org/manual/index.html 的第 15.2.4 和 15.2.5 节以及内部手册中绑定和解除绑定的描述在第 8.2 节中 sbcl.org/sbcl-internals/… 。快速的两个问题(也许你@RobertDodier 问@RainerJoswig)是由一些可修改变量控制的绑定堆栈深度,“控制堆栈大小”对此有什么影响吗?我确实在 validate.h 中看到 #define 将 BINDING_STACK_SIZE 设置为 1024*1024... 我可以增加它吗?
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我不确定是否可以增加它。尽管如此,除非您可以确定程序中没有错误,否则我认为增加堆栈大小没有任何目的。我的建议是首先寻找错误,然后寻找避免深度递归的方法。
标签: linux lisp common-lisp sbcl maxima