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authorChristian Krinitsin <mail@krinitsin.com>2025-07-05 20:00:38 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-07-05 20:00:38 +0200
commit96049c939b1916d80532630d63c14e04d5244f1d (patch)
tree7fb9df428f074078e714f1e038210cdff887185a /results/classifier/user-mode-bugs/1770
parent40bbb77d4dfebff4f99c2f90b2c0db737b0ecc5a (diff)
downloademulator-bug-study-96049c939b1916d80532630d63c14e04d5244f1d.tar.gz
emulator-bug-study-96049c939b1916d80532630d63c14e04d5244f1d.zip
lock user-mode and semantic-bugs
Diffstat (limited to 'results/classifier/user-mode-bugs/1770')
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diff --git a/results/classifier/user-mode-bugs/1770 b/results/classifier/user-mode-bugs/1770
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+++ b/results/classifier/user-mode-bugs/1770
@@ -0,0 +1,24 @@
+
+
+Wrong unpacked structure for epoll_event on qemu-or1k (openrisc)
+Description of problem:
+When using cmake automoc, the process will infinite loop waiting for epoll_events.
+Steps to reproduce:
+1. Try to compile cmake with qt5 support
+2. The build process will freeze when "Automatic MOC" is invoked
+Additional information:
+The problem is that or1k has a "packed" epoll_event structure, so it should be also packed in target_epoll_event structure.
+Following the (very trivial) patch:
+```
+--- qemu-20230327/linux-user/syscall_defs.h.orig 2023-03-27 15:41:42.000000000 +0200
++++ qemu-20230327/linux-user/syscall_defs.h 2023-06-30 17:29:39.034322213 +0200
+@@ -2714,7 +2709,7 @@
+ #define FUTEX_CMD_MASK ~(FUTEX_PRIVATE_FLAG | FUTEX_CLOCK_REALTIME)
+
+ #ifdef CONFIG_EPOLL
+-#if defined(TARGET_X86_64)
++#if defined(TARGET_X86_64) || defined(TARGET_OPENRISC)
+ #define TARGET_EPOLL_PACKED QEMU_PACKED
+ #else
+ #define TARGET_EPOLL_PACKED
+```