panic: malloc(M_WAITOK) with sleeping prohibited

[Hans Petter Selasky]

On 3/10/21 10:15 AM, Peter Holm wrote:
> I just got this panic:
> 
> igb0: <Intel(R) PRO/1000 PCI-Express Network Driver> port 0xd020-0xd03f mem 0xfb320000-0xfb33ffff,0xfb344000-0xfb347fff irq 16 at device 0.0 on pci8
> igb0: Using 1024 TX descriptors and 1024 RX descriptors
> igb0: queue equality override not set, capping rx_queues at 6 and tx_queues at 6
> igb0: Using 6 RX queues 6 TX queues
> igb0: Using MSI-X interrupts with 7 vectors
> igb0:
> db>
> db> show panic
> panic: malloc(M_WAITOK) with sleeping prohibited
> db> bt
> Tracing pid 12 tid 100172 td 0xfffffe010dce2100
> kdb_enter() at kdb_enter+0x37/frame 0xfffffe00e4f72980
> vpanic() at vpanic+0x1b2/frame 0xfffffe00e4f729d0
> panic() at panic+0x43/frame 0xfffffe00e4f72a30
> malloc_dbg() at malloc_dbg+0xd4/frame 0xfffffe00e4f72a50
> malloc() at malloc+0x34/frame 0xfffffe00e4f72ab0
> linux_alloc_current() at linux_alloc_current+0x3d/frame 0xfffffe00e4f72b00
> linux_irq_handler() at linux_irq_handler+0x3a/frame 0xfffffe00e4f72b20
> ithread_loop() at ithread_loop+0x279/frame 0xfffffe00e4f72bb0
> fork_exit() at fork_exit+0x80/frame 0xfffffe00e4f72bf0
> fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00e4f72bf0
> --- trap 0, rip = 0, rsp = 0, rbp = 0 ---
> db> x/s version
> version:        FreeBSD 14.0-CURRENT #0 main-n245371-ce53f92e6c81: Wed Mar 10 10:00:29 CET 2021\012    pho at mercat1.netperf.freebsd.org:/usr/src/sys/amd64/compile/PHO\012
> db>

This should fix it:
https://cgit.freebsd.org/src/commit/?id=d1cbe79089868226625c12ef49f51214d79aa427

--HPS