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Sun, 13 Oct 2019 23:45:53 -0700 (PDT) Reply-To: d@delphij.net To: Gleb Smirnoff , Mark Johnston Cc: Hans Petter Selasky , Yuri Pankov , freebsd-net , erj@freebsd.org References: <86cc5d82-50d0-93eb-5900-54e8b0032a08@yuripv.net> <050ba95e-d0d5-dd1a-db6f-9a5c07142efe@selasky.org> <20191009135616.GC66126@raichu> <20191009144704.GD66126@raichu> <20191009150757.GI1249@FreeBSD.org> From: Xin Li Autocrypt: addr=delphij@delphij.net; keydata= mQINBFuSR4oBEACvvEgwRIHs6IcSP/yaDtySF78Ji3rP29qdiQsxhMsOtvtffdbS56VApIWO UFb3/iN2gA8HwLvrmjijN0HEoLVX7na1WARmxRYzQMtApsZIUTtx7hnUYlsi2F5odZa6CDW9 a954DLRzYxiUwYDcu5Zjl9bglK1H8e/N9uC0Vuigr4teWfh86brzOyf819QzwFVYfMIK4ihw QGwMvTzbyVuCFy+LENkmcVYni70oQy6rZ5ktSuYbuOFvu7inRRfhSWPHziV7k+bW88sJ7xhv lBlegcnhkSudWX2M8tZ3MO1PJOcyys0CJlsBY5Weiog2lIPi05h/E9pZ9mc1Vud17iqDaL6w RaggOUhuPfDGCdO5ro82W4BZGeQMRnRF5Ntk+t2ShIH4nn3xRLV0E5nziCiKlgiMqOrz/ZTL QTVbHrCuiwD+fSK14y0oHbkOLYTYLlgh1JbwfY2Ty7elOYiWzyeJ7sJh2dF91NSEneWIOys3 mBpuvtU3nSzzTvAB48VV+Nbg1CpIOgNlPjj7uhIum/Z/VjUaJEyaLpTIRh0MVJVcbP7hXSqZ NA35EEZZVnWEOYdycm4CmEdeNPWkrAf2Ya77iR5VLGypwMlsUMQPh+sKVWDD38M8stFGBBNm d01Hi74Bsq5hKan654dOqMt5eYklrVj0ucMzFQtus7oE502UswARAQABtBxYaW4gTEkgPGRl bHBoaWpAZGVscGhpai5uZXQ+iQJUBBMBCgA+FiEEceNg5NEMZIki80nQQHl/fJX0g08FAluS R/YCGwMFCQmuhAAFCwkIBwMFFQoJCAsFFgIDAQACHgECF4AACgkQQHl/fJX0g0+2Og//bWpE F2V5/M5l6YW1T8oLcT9rIOH6oq9M0LMNRgFeiNNnilGIeeIgtOGBRueG4CZiZAvsRPJkrO70 1R2SrdkCIvwGUzUAxx1NfBWb+vgm4fgkW/MotGonceM5v0qfSKKXasWvDctkK28aG+IoQzmi FjXNW4+ju4zeQFYwD4ZDWqw9MqO0hVb24uW3dxtQhbfmOLgJ/PEDMQaFuANbW1c+iR0BQA3D Go/EeMY4kpN8on6Aqt/S/4JVltudfQ9OXdjQsC7netSaB9K3mHGt9aKAAB7RzlRY00DKkYS/ /eQwLzGPmK7yX13M68mMDjBs6mIR8t/E1S5OdBNhHRPNPlEbwugR4KaiCsN5yqzJoSV99fKY z2VyxjWPaG8yhHE+jmKUgIBKTfFUQEfkriQR4EASoeJ+soaMTiFDBij1Zw5n3ndLRFMB1ZCl fZLER36mAgW4m4kP83TWnDiJLxOxSOxifV8HpTFjff902H85cybg9KMwrfPDr6W19GGk5Vo1 fkza5krRMGbKWb7+74Evusi0ZxJLIOFwp5Y8eVqUMZaAD3f1ZX1M3pgXOp20QgAy+2KvMHij rLa4q+tMGRzYYD1BnFVSVdXAX5VOoTmHBcDz67DkuRwk2Byp1sgd407oEOmSwrNJlKS0TPCm xUJ2fdSQF+1/MMSRfee49vtMvz7cOrC5Ag0EW5JHigEQANiBmIFAfRNH3nzYNWC0yC+tfx3z sUwAsH1VaBM/cTib+yKtbBOSIlXWjJZWX3MHwoI/1LeGghB2mxkkX1L0pJ/vj1eXNR+sFZ32 0pYcl61Fxg/5fioG4QDTM4i3i7NR5PxDnc6UVaynSlII93DedRhZ1ROtdn4vyMgzsDiqhbL7 BthDOt5KxjqdRk4qRPSw7BovEqZLOcG5IJtf/zZUzRbM7SBljEbOAfekDGx1Br+RrYSD7/Ef Pwwzou9T8315IpBpIHyQF/dZNk3iFiB9Ed5CA71ZRYV5YoLWE9lL0j9kxOLQ5vHnX3mVq7QZ Bc7nzwZ6UhQgYmrG5+RWvuiPpGwvDRIsugJUGXucYkAQh5kuNblmkwpv6u9rNMjCNbzAylOa qdogra5EW+RUSbRz0b4iIr8nnZeAlh7BihCe7JjOwbDjoBEEEtSfVc4hD/LENqpcYVrChphf aOLB9YIXhnVDTVvMc9OklWT/81HzAaDQqOQCzEfY92199Ct9/CwRoQ2OpO8TO5+8A7b9Nb33 nmxMn09mb48ruRacMrfHxCWbgU4w9SEfbip4GcS5wGG6yTC+hw55Iwnnwus40NrJ0GEr8a4r cdsLbkvlyoNHB8ZGgyJ4aFCQ1V4qE1BnlTk7Z8BYBUkJM1odPSkVvHpCnMUjVpJ3hEOC+73Z YH1dh7lZABEBAAGJAjwEGAEKACYWIQRx42Dk0QxkiSLzSdBAeX98lfSDTwUCW5JHigIbDAUJ Ca6EAAAKCRBAeX98lfSDTz8DEACMh3poeUb+gWNF4RWFZuLteZVo0+E1JLYXQkmtrRBLXviP +Qy0pXyFAVxLM4hNIBoIDYfK9BcwrBYf7AwSKrH0GiNwFpgHCkbZd6qoZy2gB+adTnCpVCTJ KJetsH/8awkrChJWMK0ckGf3EeWMPvawG7kW7FBz70NYEZ0pOMiaEZNVtzD3wwbYWUiDFYth 83XGglOExg+1ShTW5XjQPRrdyJAO+aUW4o3lVjfyUJXMgI4rmhMiLVm06GuNrbpKIF0s+4Vd jQAjhrDQjfoXi9CkfsA/cONseuHNv1JGj3RqHiqHJq1dbrpodXp925zGDAnUGxCOBPoFopAH gVzR89GTut059GpwqsddZmU6y7rqifuam/ekJ+QRwc16vgt7pHqCrTY8WPxRZr2UpFU1wlTo COdeiFep1gq1F9jzFjJnoMaAdmC6k7bgAA+RQusOgIhJL0jIej7DoAHxmxFFCfRy+lDtpXwF gQ8HMvzHI65QWmQnMo7s6SQH/ZH5s1yR6SJq8+3lDz+dCuT42qJVqIPVvxd10LW0FNN+t7HF eLadU6ekSgD13/EYMYXlvNHkw7dAItSDxIzgRyykLz0bCU9xwNWoS4Z43+ifF9anJ+uR0ltW El1j++h6ZrD3LLuCgJIt1so0m49GzdcSpOI7LCwMlacyvafiEyjUn+tSNDsnfw== Organization: The FreeBSD Project Subject: Re: panic: sleeping in an epoch section Message-ID: <528fec5c-9b36-6f6a-5ba7-3237f56103a1@delphij.net> Date: Sun, 13 Oct 2019 23:45:46 -0700 MIME-Version: 1.0 In-Reply-To: <20191009150757.GI1249@FreeBSD.org> Content-Type: multipart/signed; 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RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2] X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 14 Oct 2019 06:46:02 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --zwucuWf6vqUBnH6is2eCISz6n2J9M63Ix Content-Type: multipart/mixed; boundary="T3FT6OuZ8jsjs4c596j8vX0cL62NgO190"; protected-headers="v1" From: Xin Li Reply-To: d@delphij.net To: Gleb Smirnoff , Mark Johnston Cc: Hans Petter Selasky , Yuri Pankov , freebsd-net , erj@freebsd.org Message-ID: <528fec5c-9b36-6f6a-5ba7-3237f56103a1@delphij.net> Subject: Re: panic: sleeping in an epoch section References: <86cc5d82-50d0-93eb-5900-54e8b0032a08@yuripv.net> <050ba95e-d0d5-dd1a-db6f-9a5c07142efe@selasky.org> <20191009135616.GC66126@raichu> <20191009144704.GD66126@raichu> <20191009150757.GI1249@FreeBSD.org> In-Reply-To: <20191009150757.GI1249@FreeBSD.org> --T3FT6OuZ8jsjs4c596j8vX0cL62NgO190 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 2019-10-09 08:07, Gleb Smirnoff wrote: > Yes, I we should allow sleep in ifioctl handlers. So this is my fault, = I'll > handle it today. It seems that -CURRENT as of today would panic with: (kgdb) #0 doadump (textdump=3D1) at src/sys/amd64/include/pcpu_aux.h:55 #1 0xffffffff80bbe550 in kern_reboot (howto=3D260) at /usr/src/sys/kern/kern_shutdown.c:479 #2 0xffffffff80bbe9a6 in vpanic (fmt=3D, ap=3D) at /usr/src/sys/kern/kern_shutdown.c:908 #3 0xffffffff80bbe703 in panic (fmt=3D) at /usr/src/sys/kern/kern_shutdown.c:835 #4 0xffffffff80e0d1f8 in in6ifa_llaonifp (ifp=3D) at /usr/src/sys/netinet6/in6.c:1554 #5 0xffffffff84cb3bcd in lagg_ioctl (ifp=3D0xfffff80019322000, cmd=3D, data=3D) at /usr/src/sys/net/if_lagg.c:1427 #6 0xffffffff80d4c281 in in_control (cmd=3D2152229261, data=3D0xfffffe00e01fd7d0 "lagg0", ifp=3D0xfffff80019322000, td=3D0xfffff80019675000) at /usr/src/sys/netinet/in.c:262 #7 0xffffffff80ccc6be in ifioctl (so=3D0xfffff8001c15c710, cmd=3D2152229= 261, data=3D0xfffffe00e01fd7d0 "lagg0", td=3D0xfffff80019675000) at /usr/src/sys/net/if.c:3106 #8 0xffffffff80c2fc35 in kern_ioctl (td=3D, fd=3D, com=3D, data=3D) at src/sys/sys/file.h:340 #9 0xffffffff80c2f92c in sys_ioctl (td=3D0xfffff80019675000, uap=3D0xfffff800196753c8) at /usr/src/sys/kern/sys_generic.c:709 #10 0xffffffff8102ee45 in amd64_syscall (td=3D0xfffff80019675000, traced=3D= 0) at src/sys/amd64/amd64/../../kern/subr_syscall.c:144 #11 0xffffffff810054e0 in fast_syscall_common () at /usr/src/sys/amd64/amd64/exception.S:581 #12 0x000000080047db8a in ?? () Previous frame inner to this frame (corrupt stack?) Current language: auto; currently minimal My configuration is somewhat special: I have a lagg0 (failover) group containing em0 and wlan0: ifconfig_wlan0=3D"WPA" ifconfig_em0=3D"ether (ethernet address of wlan0) up" cloned_interfaces=3D"lagg0" ifconfig_lagg0=3D"laggproto failover laggport em0 laggport wlan0 DHCP" ifconfig_lagg0_ipv6=3D"inet6 accept_rtadv" Without that lagg0 setup, with only wlan0 configured to DHCP and accept_rtadv, the system would boot further and network access appears to work. By the way I think there are some recent change (not sure when, but it happen since August) to either e1000 or iflib have made the driver to expose its e1000_delay state quite a bit when ifconfig or dhclient is trying to configure the lagg0 group, when the wired connection is not available. Cheers, --T3FT6OuZ8jsjs4c596j8vX0cL62NgO190-- --zwucuWf6vqUBnH6is2eCISz6n2J9M63Ix Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.2.17 (FreeBSD) iQIzBAEBCgAdFiEEceNg5NEMZIki80nQQHl/fJX0g08FAl2kGZ8ACgkQQHl/fJX0 g09JQBAAl8/R9vqqW4ivRVcKzJapE6gnqbLIDorMxJa6MNQhdpWPWG3X2yH/9gNg j8SSR96VI3fJs9REzLABBV1x29w8BdTcuOhiwRr6azUdBwxCugL47G8QUldypnEg ltp7WpqORL4Oz95K7c4L1bpDmoWQwvRy7nxHHvgn0UOYVA2XBADGhRXSZRQM/rdN Nc4ma3SYwk3lPCT3IMVkJhk3qeodjtQ6h3XJzeIqN/FCTvLnBVo9eIVwE2M/fjK8 DJpgg/7IyRA9qbOC9l5dGD7Vpz02dy0UR9VwWmgHLExi9Hju+bu8Ae+UeX/Zmt63 ON8X11nfn+GIi0BvPGVUTyCjpxaPgEoOI6tgG8Vv06CJVxVrF/tgTKhLqWTycsKf 8+n6jgWG18ChvcnB6Zaac5c8VJtCZFL890TT+Pdp4IRP99+TtPWUmLN1ULT/VLK7 BCo+EGq+GCkKPt3cgXcceocgZsU19Q7wvMXQ5OhO6sI+AHoRw7Q9Ewlazb0XfMdS 1XJ0FWZcBjZuTMPrzUNqVu8HwSPSc2ke0foW/JqhnCuM+DigIpeOhLq3l3UXgIvm okmfmydFixy4QK2o8ZMlQM0+9IKlgd+oSnPkYWyav7srEJkUeLtHJEDTFuJ8fytC fQaLmOkqAhJVrTJgvcqnEoVldjll28+XTNsNzFRitZI60y11+7Y= =MVoX -----END PGP SIGNATURE----- --zwucuWf6vqUBnH6is2eCISz6n2J9M63Ix--