I'm trying to execute a Python script, but I am getting the following error:
Process finished with exit code 139 (interrupted by signal 11: SIGSEGV)
I'm using python 3.5.2 on a Linux Mint 18.1 Serena OS
Can someone tell me why this happens, and how can I solve?
The SIGSEGV signal indicates a "segmentation violation" or a "segfault". More or less, this equates to a read or write of a memory address that's not mapped in the process.
This indicates a bug in your program. In a Python program, this is either a bug in the interpreter or in an extension module being used (and the latter is the most common cause).
To fix the problem, you have several options. One option is to produce a minimal, self-contained, complete example which replicates the problem and then submit it as a bug report to the maintainers of the extension module it uses.
Another option is to try to track down the cause yourself. gdb is a valuable tool in such an endeavor, as is a debug build of Python and all of the extension modules in use.
After you have gdb installed, you can use it to run your Python program:
gdb --args python <more args if you want>
And then use gdb commands to track down the problem. If you use run then your program will run until it would have crashed and you will have a chance to inspect the state using other gdb commands.
Another possible cause (which I encountered today) is that you're trying to read/write a file which is open. In this case, simply closing the file and rerunning the script solved the issue.
After some times I discovered that I was running a new TensorFlow version that gives error on older computers. I solved the problem downgrading the TensorFlow version to 1.4
When I encounter this problem, I realize there are some memory issues. I rebooted PC and solved it.
This can also be the case if your C-program (e.g. using cpython is trying to access a variable out-of-bound
ctypedef struct ReturnRows:
double[10] your_value
cdef ReturnRows s_ReturnRows # Allocate memory for the struct
s_ReturnRows.your_value = [0] * 12
will fail with
Process finished with exit code 139 (interrupted by signal 11: SIGSEGV)
For me, I was using the OpenCV library to apply SIFT.
In my code, I replaced cv2.SIFT() to cv2.SIFT_create() and the problem is gone.
Deleted the python interpreter and the 'venv' folder solve my error.
I got this error in PHP, while running PHPUnit. The reason was a circular dependency.
I received the same error when trying to connect to an Oracle DB using the pyodbc module:
connection = pyodbc.connect()
The error occurred on the following occasions:
The DB connection has been opened multiple times in the same python
file
While in debug mode a breakpoint has been reached
while the connection to the DB being open
The error message could be avoided with the following approaches:
Open the DB only once and reuse the connection at all needed places
Properly close the DB connection after using it
Hope, that will help anyone!
11 : SIGSEGV - This signal is arises when an memory segement is illegally accessed.
There is a module name signal in python through which you can handle this kind of OS signals.
If you want to ignore this SIGSEGV signal, you can do this:
signal.signal(signal.SIGSEGV, signal.SIG_IGN)
However, ignoring the signal can cause some inappropriate behaviours to your code, so it is better to handle the SIGSEGV signal with your defined handler like this:
def SIGSEGV_signal_arises(signalNum, stack):
print(f"{signalNum} : SIGSEGV arises")
# Your code
signal.signal(signal.SIGSEGV, SIGSEGV_signal_arises)
I encountered this problem when I was trying to run my code on an external GPU which was disconnected. I set os.environ['PYOPENCL_CTX']=2 where GPU 2 was not connected. So I just needed to change the code to os.environ['PYOPENCL_CTX'] = 1.
For me these three lines of code already reproduced the error, no matter how much free memory was available:
import numpy as np
from sklearn.cluster import KMeans
X = np.array([[1, 2], [1, 4], [1, 0], [10, 2], [10, 4], [10, 0]])
kmeans = KMeans(n_clusters=1, random_state=0).fit(X)
I could solve the issue by removing an reinstalling the scikit-learn package. A very similar solution to this.
This can also occur if trying to compound threads using concurrent.futures. For example, calling .map inside another .map call.
This can be solved by removing one of the .map calls.
I had the same issue working with kmeans from scikit-learn.
Upgrading from scikit-learn 1.0 to 1.0.2 solved it for me.
This issue is often caused by incompatible libraries in your environment. In my case, it was the pyspark library.
In my case, reverting my most recent conda installs fixed the situation.
I got this error when importing monai. It was solved after I created a new conda environment. Possible reasons I could imagine were either that there were some conflict between different packages, or maybe that my environment name was the same as the package name I wanted to import (monai).
found on other page.
interpreter: python 3.8
cv2.CascadeClassifier(cv2.data.haarcascades + "haarcascade_frontalface_default.xml")
this solved issue for me.
i was getting SIGSEGV with 2.7, upgraded my python to 3.8 then got different error with OpenCV. and found answer on OpenCV 4.0.0 SystemError: <class 'cv2.CascadeClassifier'> returned a result with an error set.
but eventually one line of code fixed it.
Related
When checking the compatibility of the software I use with Python 3.11, I stumbled upon some issue where I am not sure how to solve or debug it. There already is a corresponding issue in the upstream project, but no apparent solution: https://github.com/hsnr-gamera/gamera-4/issues/54.
The library is partially using the Python C API to increase the performance. The build process does not error out, but as soon as the shared object should be imported, the following error is raised:
tests/test_color.py:3: in <module>
from gamera.core import *
/opt/hostedtoolcache/Python/3.11.0/x64/lib/python3.11/site-packages/gamera-4.0.0-py3.11-linux-x86_64.egg/gamera/core.py:51: in <module>
from gamera.gameracore import UNCLASSIFIED, AUTOMATIC, HEURISTIC, MANUAL
E SystemError: initialization of gameracore raised unreported exception
Python 3.10 seems to work fine here. There seems to have been a similar issue regarding Python 3.11 within psycopg2 (see Fedora bug tracker), so this might be related to changes in Python 3.11. The build environment is Ubuntu 20.04.5 through GitHub Actions, while I did some local tests with Ubuntu 22.04 as well.
As there does not seem to be much guidance on how to tackle such issues, the following questions arise for me:
How can these failures be debugged and fixed in a general manner? Following some basic tutorials on how to use GDB with Python did not help me much here, although my experience is rather limited there.
Is there any known change from Python 3.10 to Python 3.11 which would cause such issues?
I'm running a python script and it used to work (it even does on my other laptop right now) but not on my current computer - I just get the error code:
Process finished with exit code -1073741515 (0xC0000135)
I don't get any other results - not even from "print" commands at the beginning of the file.
I haven't found anything specific to that.
I re-installed python (2.7.9), pygame (1.9.1) and even pycharm (tried 4.5 first, now with 5.0 - same result)
Does anyone know what that error code means? I couldn't find anything about it.
reinstall python – you don't have python33.dll in c:\WINDOWS\system32\
Maybe you have different python versions – look at folders in root of c:
If yes, then point to your version of python.exe in pyCharm > Settings > Project Interpreter
This may be due to another program locking that memory location.
Before you try more drastic measures, know that restarting the computer fixed the problem for me.
The error seems to be related to issues in native code (e.g. C/C++) and might be related to issues in loading some dll file. To know which file, the Windows "Event Viewer" is your friend.
The "Event Viewer" -> "Windows Logs" -> "Application" feed usually shows one or more rows for each crashed application and one of them should list the problematic filename.
Personally I observed similar issue with matplotlib on Python 3.9 (installed using Anaconda on Windows 10). I could see this kind of error when the code was executed using PyCharm. The same code just crashed with no visible errors when starting from Anaconda console.
The Event viewer then showed issue with freetype.dll. In this case, the problem was fixed by downgrading the packege from 2.11.0 to 2.10.4:
conda install freetype=2.10.4
Depending on the exact issue, I could imagine that removing pycache folder might help (like mentioned in other answers). Also, sometimes it might make sense to look at the PATH environment variable to actually understand why certain dll file is loaded from such a location.
I got this error in PyCharm after upgrading pyarrow to the most recent version -- 0.16 --- using pip, running the same code I had ran before this update which used pandas read_parquet specifying the engine="pyarrow" triggering use of this library. After uninstalling and installing the previous version with
pip install pyarrow=="0.15"
the problem resolved.
I encountered the same error when running .py in PyCharm on Windows. Inspired by https://thenewboston.com/forum/topic.php?id=10088, I uninstalled and reinstalled Python. When reinstalling, I checked the ADD PYTHON TO THE PATH Option. After recreating the virtual environment in PyCharm, the error was gone.
Update: On another Windows PC (64-bit), I encountered the same error where reinstalling Python was not enough. I tried two things.
Uninstalling 32-bit Python and installing 64-bit Python. Namely downloading python-3.6.4-amd64.exe instead of python-3.6.4.exe
Recreating the Pycharm project from github.
Between the two actions, the error was gone.
taskkill /F /IM python.exe
Try this if it just happened out of the bloom and it worked normally before that error occurred.
I solved it by disabling "PyQt compatible" checkbox in the Settings under Build, Execution, Deployment --> Python Debugger.
After that, it should debug properly.
Here is caused it and solution:
The computer had two physical processors. The code uses Numba for parallel computations. Upon disabling and re-enabling hyperthreading this issue started. To solve it clear pycache folder and run the program.
I encountered this error in my code as well, in my case the problem was sharing pickle which produced in Unix machine one a Windows one.
**I faced the same situation and the malfunction stems from trying to run both terminal processor and graphical user interfaces. When I clicked the button program stopped running **
Solution: I disabled terminal inputs and work with graphics.
For example:
if you do this
entry1=Entry(root,width=10).pack()
variable= str(input("Whats your name?"))
You will see the error.
if you delete either entry1 or variable, you will not see the problem.
If you're trying create a .svm use dlib probably the problem is in .xml, some image that you use is cause the problem. Try to create a new .xml putting out a image(any image) or remove that your .xml and test, try this even you find out the image problem.
For exemple, the image "treinamento3.jpg" was the problem. I removed this command line:
< image file='delirium\treinamento3.jpg'>
< box top='213' left='86' width='46' height='49'/ >
< box top='531' left='47' width='125' height='123'/ >
< /image >
from my .xml for solve my problem.
Description
Hi all, I'm running into a strange error while trying to run the following:
import sentence_transformers as st
encoder = st.SentenceTransformer("all-mpnet-base-v2") # also tried sentence-t5-base and all-MiniLM-L6-v2
I get an error: Process finished with exit code 139 (interrupted by signal 11: SIGSEGV), and if I run it as a script, I get zsh: segmentation fault python. I also get a warning: multiprocessing/resource_tracker.py:224: UserWarning: resource_tracker: There appears to be 1 leaked semaphore objects to clean up at shutdown.
Reproducibility
I'm afraid I don't know how to reproduce this problem, it was working until it stopped working. Here are my specs:
MacBook Pro 2019, Intel Core i9, 32GB RAM
macOS Monterey 12.0.1
python 3.10.2
sentence_transformers==2.2.0
torch==1.11.0
What I've tried so far
clear the cache from ~/.cache/torch/sentence_transformers
reinstall sentence_transformers (also tried downgrading to 2.1.0)
reinstalling torch
recreating my virtual environment
rebooting
I've also managed to trace this problem to the following point in the torch codebase.
I've also started a discussion in this GitHub issue
Any help would be appreciated, thanks in advance!
Update: I managed to fix the problem by downgrading to Python 3.9.11. I'm not actually sure whether the Python version is to be blamed here, or perhaps just having a new Python environment did the trick (perhaps the virtual environment wasn't enough). Anyway, this isn't really a solution but a workaround, so if anyone has any better suggestions, then please let us know!
I'm getting a segfault ("Illegal operation (core dumped)") for a python program that I've run every week without fault for ages. I'm also running Ubuntu on Nitrous. I recall dealing with these yonks ago when coding in C, and I haven't had to deal with them very much recently.
Importing the library urllib3 seems to be causing the problem. Does anyone know a fix?
Also, can someone advise or link to the best workflow for diagnosing these problems in future?
Thanks!
"Illegal operation"
This usually means that you are running code compiled for a more capable processor (e.g. Haswell) on a less capable one (e.g. Ivy Bridge).
Importing the library urllib3 seems to be causing the problem.
On my Ubuntu machine, import urllib3 loads libssl.so.1.0.0, libcrypto.so.1.0.0 and _ssl.x86_64-linux-gnu.so. These crypto libraries are very likely to be compiled with AVX, AVX2, etc. instructions which your processor may not support.
best workflow for diagnosing these problems
Your first step should be to find out which instruction is causing the SIGILL. To do so, run:
gdb python
(gdb) run
>>> import urllib3 # do whatever is necessary to reproduce SIGILL
(gdb) x/i $pc
(gdb) info sym $pc
The last two commands above should give you the instruction that is causing the SIGILL, and the library in which that instruction is used. Once you know what that instruction is, you can verify that your processor doesn't support it, and contact the distributor of the "guilty" library to get a different compilation (one without using instructions that are not supported by your CPU).
I'm running a python script and it used to work (it even does on my other laptop right now) but not on my current computer - I just get the error code:
Process finished with exit code -1073741515 (0xC0000135)
I don't get any other results - not even from "print" commands at the beginning of the file.
I haven't found anything specific to that.
I re-installed python (2.7.9), pygame (1.9.1) and even pycharm (tried 4.5 first, now with 5.0 - same result)
Does anyone know what that error code means? I couldn't find anything about it.
reinstall python – you don't have python33.dll in c:\WINDOWS\system32\
Maybe you have different python versions – look at folders in root of c:
If yes, then point to your version of python.exe in pyCharm > Settings > Project Interpreter
This may be due to another program locking that memory location.
Before you try more drastic measures, know that restarting the computer fixed the problem for me.
The error seems to be related to issues in native code (e.g. C/C++) and might be related to issues in loading some dll file. To know which file, the Windows "Event Viewer" is your friend.
The "Event Viewer" -> "Windows Logs" -> "Application" feed usually shows one or more rows for each crashed application and one of them should list the problematic filename.
Personally I observed similar issue with matplotlib on Python 3.9 (installed using Anaconda on Windows 10). I could see this kind of error when the code was executed using PyCharm. The same code just crashed with no visible errors when starting from Anaconda console.
The Event viewer then showed issue with freetype.dll. In this case, the problem was fixed by downgrading the packege from 2.11.0 to 2.10.4:
conda install freetype=2.10.4
Depending on the exact issue, I could imagine that removing pycache folder might help (like mentioned in other answers). Also, sometimes it might make sense to look at the PATH environment variable to actually understand why certain dll file is loaded from such a location.
I got this error in PyCharm after upgrading pyarrow to the most recent version -- 0.16 --- using pip, running the same code I had ran before this update which used pandas read_parquet specifying the engine="pyarrow" triggering use of this library. After uninstalling and installing the previous version with
pip install pyarrow=="0.15"
the problem resolved.
I encountered the same error when running .py in PyCharm on Windows. Inspired by https://thenewboston.com/forum/topic.php?id=10088, I uninstalled and reinstalled Python. When reinstalling, I checked the ADD PYTHON TO THE PATH Option. After recreating the virtual environment in PyCharm, the error was gone.
Update: On another Windows PC (64-bit), I encountered the same error where reinstalling Python was not enough. I tried two things.
Uninstalling 32-bit Python and installing 64-bit Python. Namely downloading python-3.6.4-amd64.exe instead of python-3.6.4.exe
Recreating the Pycharm project from github.
Between the two actions, the error was gone.
taskkill /F /IM python.exe
Try this if it just happened out of the bloom and it worked normally before that error occurred.
I solved it by disabling "PyQt compatible" checkbox in the Settings under Build, Execution, Deployment --> Python Debugger.
After that, it should debug properly.
Here is caused it and solution:
The computer had two physical processors. The code uses Numba for parallel computations. Upon disabling and re-enabling hyperthreading this issue started. To solve it clear pycache folder and run the program.
I encountered this error in my code as well, in my case the problem was sharing pickle which produced in Unix machine one a Windows one.
**I faced the same situation and the malfunction stems from trying to run both terminal processor and graphical user interfaces. When I clicked the button program stopped running **
Solution: I disabled terminal inputs and work with graphics.
For example:
if you do this
entry1=Entry(root,width=10).pack()
variable= str(input("Whats your name?"))
You will see the error.
if you delete either entry1 or variable, you will not see the problem.
If you're trying create a .svm use dlib probably the problem is in .xml, some image that you use is cause the problem. Try to create a new .xml putting out a image(any image) or remove that your .xml and test, try this even you find out the image problem.
For exemple, the image "treinamento3.jpg" was the problem. I removed this command line:
< image file='delirium\treinamento3.jpg'>
< box top='213' left='86' width='46' height='49'/ >
< box top='531' left='47' width='125' height='123'/ >
< /image >
from my .xml for solve my problem.