Date: Wed, 30 May 2018 17:48:05 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 228612] if_setlladdr() invokes SIOCSIFFLAGS handlers in epoch context Message-ID: <bug-228612-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=228612 Bug ID: 228612 Summary: if_setlladdr() invokes SIOCSIFFLAGS handlers in epoch context Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: markj@FreeBSD.org I'm getting an INVARIANTS panic on boot on ThunderX. It occurs because if_setlladdr() may invoke the driver's SIOCSIFFLAGS handler in epoch context, and this handler may sleep in general. lo0: link state changed to UP vnic0: link state changed to UP lagg0: link state changed to UP panic: malloc(M_WAITOK) in epoch context cpuid = 89 time = 1527701819 KDB: stack backtrace: db_trace_self() at db_trace_self_wrapper+0x28 pc = 0xffff000000667ca4 lr = 0xffff0000000db510 sp = 0xffff000148eae100 fp = 0xffff000148eae310 db_trace_self_wrapper() at vpanic+0x1a8 pc = 0xffff0000000db510 lr = 0xffff00000037a364 sp = 0xffff000148eae320 fp = 0xffff000148eae3d0 vpanic() at kassert_panic+0x1bc pc = 0xffff00000037a364 lr = 0xffff00000037a110 sp = 0xffff000148eae3e0 fp = 0xffff000148eae490 kassert_panic() at malloc_dbg+0x13c pc = 0xffff00000037a110 lr = 0xffff000000354dc0 sp = 0xffff000148eae4a0 fp = 0xffff000148eae4c0 malloc_dbg() at malloc+0x28 pc = 0xffff000000354dc0 lr = 0xffff000000354aa8 sp = 0xffff000148eae4d0 fp = 0xffff000148eae500 malloc() at nicvf_config_data_transfer+0xfc pc = 0xffff000000354aa8 lr = 0xffff0000006a7d50 sp = 0xffff000148eae510 fp = 0xffff000148eae5c0 nicvf_config_data_transfer() at nicvf_if_init_locked+0x14c pc = 0xffff0000006a7d50 lr = 0xffff0000006a6f00 sp = 0xffff000148eae5d0 fp = 0xffff000148eae620 nicvf_if_init_locked() at nicvf_if_ioctl+0x340 pc = 0xffff0000006a6f00 lr = 0xffff0000006a6bd0 sp = 0xffff000148eae630 fp = 0xffff000148eae670 nicvf_if_ioctl() at if_setlladdr+0x180 pc = 0xffff0000006a6bd0 lr = 0xffff00000046bc5c sp = 0xffff000148eae680 fp = 0xffff000148eae6e0 if_setlladdr() at lagg_ioctl+0xe20 pc = 0xffff00000046bc5c lr = 0xffff000148a8e6d4 sp = 0xffff000148eae6f0 fp = 0xffff000148eae7a0 lagg_ioctl() at ifioctl+0x7a8 pc = 0xffff000148a8e6d4 lr = 0xffff000000469bf8 sp = 0xffff000148eae7b0 fp = 0xffff000148eae860 ifioctl() at kern_ioctl+0x358 pc = 0xffff000000469bf8 lr = 0xffff0000003e39e0 sp = 0xffff000148eae870 fp = 0xffff000148eae8c0 kern_ioctl() at sys_ioctl+0x158 pc = 0xffff0000003e39e0 lr = 0xffff0000003e3638 sp = 0xffff000148eae8d0 fp = 0xffff000148eae9a0 sys_ioctl() at do_el0_sync+0x498 pc = 0xffff0000003e3638 lr = 0xffff000000683328 sp = 0xffff000148eae9b0 fp = 0xffff000148eaea70 do_el0_sync() at handle_el0_sync+0x74 pc = 0xffff000000683328 lr = 0xffff00000066a1f4 sp = 0xffff000148eaea80 fp = 0xffff000148eaeb90 handle_el0_sync() at 0x3a53c pc = 0xffff00000066a1f4 lr = 0x000000000003a53c sp = 0xffff000148eaeba0 fp = 0x0000ffffffffe410 -- You are receiving this mail because: You are the assignee for the bug.
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