Date: Thu, 4 Apr 2024 18:42:26 +0000 (UTC) From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> To: freebsd-arm@freebsd.org Subject: Re: panic: Assertion pcb->pcb_fpusaved == NULL failed at /usr/src/sys/arm64/arm64/vfp.c:209 Message-ID: <o6p55830-290n-5612-2261-3q81oq0q82nn@yvfgf.mnoonqbm.arg> In-Reply-To: <1143p485-6896-68pr-r515-7r67os0qr9q4@SerrOFQ.bet> References: <1143p485-6896-68pr-r515-7r67os0qr9q4@SerrOFQ.bet>
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On Wed, 3 Apr 2024, Bjoern A. Zeeb wrote: > Hi, > > I had a hang hard-er hang when loading a LinuxKPI based wireless driver for a > card probably in D3 state. Probing as running through three times (but > there's > a lot more PCIe cards ther, I didn't say the card being detectede). > > ^T would not work at this point. > > I could break into the debugger thoug, did so and typed cont waiting a bit > longer > and upon trying to get into debugger again this happened: Ok, I also just go this when manually trying to enter ddb. The unhelpful bis is that I do not have KDB_UNATTENDED set but yet it goes into automatic reboot. After reboot I did check: # sysctl debug.debugger_on_panic debug.debugger_on_panic: 1 Should I file a PR for this? > KDB: enter: Break to debugger > timeout stopping cpus > [ thread pid 9 tid 100240 ] > Stopped at kdb_alt_break_internal+0x180: str xzr, [x19, #1408] > db> timeout stopping cpus > panic: Assertion pcb->pcb_fpusaved == NULL failed at > /usr/src/sys/arm64/arm64/vfp.c:209 > cpuid = 0 > time = 1712167778 > KDB: stack backtrace: > db_trace_self() at db_trace_self > db_trace_self_wrapper() at db_trace_self_wrapper+0x38 > vpanic() at vpanic+0x1a4 > panic() at panic+0x48 > vfp_save_state_savectx() at vfp_save_state_savectx+0x48 > savectx() at savectx+0x38 > arm_gic_v3_intr() at arm_gic_v3_intr+0xe4 > intr_irq_handler() at intr_irq_handler+0x88 > handle_el1h_irq() at handle_el1h_irq+0x14 > --- interrupt > lock_delay() at lock_delay+0x18 > __mtx_lock_sleep() at __mtx_lock_sleep+0xdc > __mtx_lock_flags() at __mtx_lock_flags+0x138 > softclock_call_cc() at softclock_call_cc+0xd0 > softclock_thread() at softclock_thread+0xb8 > fork_exit() at fork_exit+0x78 > fork_trampoline() at fork_trampoline+0x18 > Uptime: 16m57s > Automatic reboot in 15 seconds - press a key on the console to abort > > > > > -- Bjoern A. Zeeb r15:7
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