Date: Thu, 31 Aug 2017 08:14:59 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 191359] [memguard] [panic] Memory modified after free w/MEMGUARD build Message-ID: <bug-191359-8-aPnDcCKVmp@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-191359-8@https.bugs.freebsd.org/bugzilla/> References: <bug-191359-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D191359 --- Comment #9 from Peter Holm <pho@FreeBSD.org> --- (In reply to Siva Mahadevan from comment #8) Hard for me to say it the original panic is still there. With the same scenario I see: panic: MemGuard detected double-free of 0xfffffe000075e000 cpuid =3D 2 time =3D 1504166229 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe2ebbde5= db0 vpanic() at vpanic+0x19c/frame 0xfffffe2ebbde5e30 panic() at panic+0x43/frame 0xfffffe2ebbde5e90 memguard_free() at memguard_free+0x14f/frame 0xfffffe2ebbde5ed0 bufkva_free() at bufkva_free+0xf8/frame 0xfffffe2ebbde5ef0 buf_free() at buf_free+0xd5/frame 0xfffffe2ebbde5f40 brelse() at brelse+0x5c0/frame 0xfffffe2ebbde5fd0 bufdone_finish() at bufdone_finish+0xd4/frame 0xfffffe2ebbde5ff0 bufdone() at bufdone+0xe3/frame 0xfffffe2ebbde6020 biodone() at biodone+0x188/frame 0xfffffe2ebbde6060 g_io_deliver() at g_io_deliver+0x5e4/frame 0xfffffe2ebbde6140 biodone() at biodone+0x188/frame 0xfffffe2ebbde6180 g_io_deliver() at g_io_deliver+0x5e4/frame 0xfffffe2ebbde6260 biodone() at biodone+0x188/frame 0xfffffe2ebbde62a0 g_io_deliver() at g_io_deliver+0x5e4/frame 0xfffffe2ebbde6380 g_disk_done() at g_disk_done+0x1ee/frame 0xfffffe2ebbde6400 biodone() at biodone+0x188/frame 0xfffffe2ebbde6440 dadone() at dadone+0x194b/frame 0xfffffe2ebbde69a0 xpt_done_process() at xpt_done_process+0x35f/frame 0xfffffe2ebbde69e0 xpt_done_td() at xpt_done_td+0x136/frame 0xfffffe2ebbde6a30 fork_exit() at fork_exit+0x13b/frame 0xfffffe2ebbde6ab0 Details @ https://people.freebsd.org/~pho/stress/log/memguard8.txt --=20 You are receiving this mail because: You are the assignee for the bug.=
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