Libkmod and Raspberry Pi Error #1
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lucasdemarchi
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Jan 8, 2018
On my computer `testsuite/test-modprobe modprobe_install_cmd_loop` was failing because when it forks off the shell the child process ends up calling syscall() which are are supposed to wrap. Here's the backtrace: #0 0x00007ffff6fdb66b in raise () from /lib64/libc.so.6 #1 0x00007ffff6fdd381 in abort () from /lib64/libc.so.6 #2 0x00007ffff77bac97 in syscall (__sysno=<optimized out>) at testsuite/init_module.c:362 #3 0x00007fffef92d4e7 in hashmap_base_new.lto_priv () from /lib64/libnss_systemd.so.2 #4 0x00007fffef953f50 in sd_bus_open_system () from /lib64/libnss_systemd.so.2 #5 0x00007fffef943123 in _nss_systemd_getpwuid_r () from /lib64/libnss_systemd.so.2 #6 0x00007ffff707eea5 in getpwuid_r@@GLIBC_2.2.5 () from /lib64/libc.so.6 #7 0x00007ffff707e608 in getpwuid () from /lib64/libc.so.6 #8 0x00005555555859e1 in get_current_user_info.part () #9 0x00005555555a375a in initialize_shell_variables () #10 0x0000555555580fde in shell_initialize () #11 0x00005555555846ff in main ()<Paste> The reason it fails on my system and not on, for e.g., a new one set up with mkosi is that the call to getpwuid() depends on the contents /etc/nsswitch.conf. The systemd module calls syscall() to implement gettid() which we can't forward due to being a variadic function. No fix is provided here, but at least it's explained why this happens.
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I keep on getting this file system mounting error on my Raspberry Pi 2 running PWNPI.
The error message seems to be coming from a process called libkmod.
The exact error message is:
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