Date: Tue, 13 Nov 2018 18:04:45 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-arm@FreeBSD.org Subject: [Bug 233204] rtld issue on aarch64 Message-ID: <bug-233204-7@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=233204 Bug ID: 233204 Summary: rtld issue on aarch64 Product: Base System Version: CURRENT Hardware: arm64 OS: Any Status: New Severity: Affects Many People Priority: --- Component: arm Assignee: freebsd-arm@FreeBSD.org Reporter: mikael.urankar@gmail.com CC: emaste@freebsd.org Created attachment 199211 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=199211&action=edit test program Hi, I'm having the following crash in rtld on aarch64 when a program uses dlopen, pthread and tls variables with the test program available at [1] : Program terminated with signal SIGSEGV, Segmentation fault. #0 free_tls (tcb=0x4028e010, tcbsize=16, tcbalign=16) at /usr/src/libexec/rtld-elf/rtld.c:4842 4842 dtvsize = dtv[1]; (gdb) bt #0 free_tls (tcb=0x4028e010, tcbsize=16, tcbalign=16) at /usr/src/libexec/rtld-elf/rtld.c:4842 #1 0x0000000040235910 in _rtld_free_tls (tcb=0x4028e010, tcbsize=16, tcbalign=<optimized out>) at /usr/src/libexec/rtld-elf/rtld.c:5062 #2 0x00000000402acde4 in _thr_free (curthread=0x406c4000, thread=0x406c4500) at /usr/src/lib/libthr/thread/thr_list.c:199 #3 0x00000000402accf0 in _thr_gc (curthread=0x406c4000) at /usr/src/lib/libthr/thread/thr_list.c:129 #4 0x00000000402ad164 in _thr_alloc (curthread=0x406c4000) at /usr/src/lib/libthr/thread/thr_list.c:141 #5 0x00000000402a2124 in _pthread_create (thread=0xffffffffe948, attr=0x0, start_routine=0x406d906c <do_something>, arg=0x0) at /usr/src/lib/libthr/thread/thr_create.c:81 #6 0x0000000000210364 in main () (gdb) p *0x4028e010 $1 = 666 The tcb points to my __thread variable which seems wrong. I don't have the knowledge to debug this problem further so any help will be greatly appreciated. It crashes on 11.2-RELEASE and 13.0-CURRENT r340197. [1] http://mikael.urankar.free.fr/FreeBSD/aarch64/test.c http://mikael.urankar.free.fr/FreeBSD/aarch64/test_lib.c -- You are receiving this mail because: You are the assignee for the bug.help
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