Date: Wed, 25 Apr 2018 12:41:37 -0700 From: Bryan Drewery <bdrewery@FreeBSD.org> To: freebsd-current <freebsd-current@freebsd.org> Subject: Re: crash on process exit.. current at about r332467 Message-ID: <da5f0963-03fe-dbd2-f271-3a44bb6f3049@FreeBSD.org> In-Reply-To: <8644151e-7dce-1283-e804-93a4b1b7bb0b@FreeBSD.org> References: <9479e941-39be-e6e2-869e-aac475c5e33a@freebsd.org> <8644151e-7dce-1283-e804-93a4b1b7bb0b@FreeBSD.org>
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --XrXTZQPqT7qonL4KyhQAbkofj9ZnNHGLl Content-Type: multipart/mixed; boundary="q07P0RfWC0x9DqdfKOtoNi9gPYJFoA94D"; protected-headers="v1" From: Bryan Drewery <bdrewery@FreeBSD.org> To: freebsd-current <freebsd-current@freebsd.org> Message-ID: <da5f0963-03fe-dbd2-f271-3a44bb6f3049@FreeBSD.org> Subject: Re: crash on process exit.. current at about r332467 References: <9479e941-39be-e6e2-869e-aac475c5e33a@freebsd.org> <8644151e-7dce-1283-e804-93a4b1b7bb0b@FreeBSD.org> In-Reply-To: <8644151e-7dce-1283-e804-93a4b1b7bb0b@FreeBSD.org> --q07P0RfWC0x9DqdfKOtoNi9gPYJFoA94D Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 4/25/18 12:39 PM, Bryan Drewery wrote: > On 4/23/18 7:50 AM, Julian Elischer wrote: >> back trace at:=C2=A0 http://www.freebsd.org/~julian/bob-crash.png >> >> If anyone wants to take a look.. >> >> In the exit syscall, while deallocating a vm object. >> >> I haven't see references to a similar crash in the last 10 days or so.= =2E >> But if it rings any bells... >> >=20 > I just hit this on r332455 and have a dump. >=20 >> panic: Bad link elm 0xfffff811cd920e60 prev->next !=3D elm >> cpuid =3D 10 >> time =3D 1524682939 >> KDB: stack backtrace: >> db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe23= f450c3b0 >> vpanic() at vpanic+0x18d/frame 0xfffffe23f450c410 >> panic() at panic+0x43/frame 0xfffffe23f450c470 >> vm_object_destroy() at vm_object_destroy/frame 0xfffffe23f450c4d0 >> vm_object_deallocate() at vm_object_deallocate+0x45c/frame 0xfffffe23f= 450c530 >> vm_map_process_deferred() at vm_map_process_deferred+0x99/frame 0xffff= fe23f450c560 >> vm_map_remove() at vm_map_remove+0xc6/frame 0xfffffe23f450c590 >> exec_new_vmspace() at exec_new_vmspace+0x185/frame 0xfffffe23f450c5f0 >> exec_elf64_imgact() at exec_elf64_imgact+0x8fb/frame 0xfffffe23f450c6e= 0 >> kern_execve() at kern_execve+0x82c/frame 0xfffffe23f450ca40 >> sys_execve() at sys_execve+0x4c/frame 0xfffffe23f450cac0 >> amd64_syscall() at amd64_syscall+0x786/frame 0xfffffe23f450cbf0 >> fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe23f45= 0cbf0 >> --- syscall (59, FreeBSD ELF64, sys_execve), rip =3D 0x800d7af7a, rsp = =3D 0x7fffffffbd28, rbp =3D 0x7fffffffbe70 --- >=20 >=20 >=20 It's a different stack than Julian's but it seems like the same issue to = me. --=20 Regards, Bryan Drewery --q07P0RfWC0x9DqdfKOtoNi9gPYJFoA94D-- --XrXTZQPqT7qonL4KyhQAbkofj9ZnNHGLl Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEE+Rc8ssOq6npcih8JNddxu25Gl88FAlrg2fEACgkQNddxu25G l89EZgf8Ca/haSUNmxU+Xq6cYacl19+4AFizBi6FcNw+QYWQ4EOEhNl0zSig5W4V cCUwkXcx18ULMBWcax4rFMBDi8TPXYPNPFtB8Pr+DNUWycN4f68jpLqnRxo5htlt QeKbS/uq2tPkon7ALBRRlUFRFoUZGtk/ptOCSocSMr6SCT6jkgF/FVcf7lR6GSSn 0q/mt9s8rZ9x4xN78/Atczvi01uLmDxSbLpJy/vUkGrrcYp+E6XdJPgKfne07BcF d56AApE7KiSgL1ipP6YhmylL1jEmScG0jnfr43HGHYP+NcDyvKo2Ye8URs8WqaAo RAOs658bQhF7EE4/WNt0KrLEbwB73Q== =/3P0 -----END PGP SIGNATURE----- --XrXTZQPqT7qonL4KyhQAbkofj9ZnNHGLl--
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