Re: kern/57333: subr_kmem.c", line 429 kmem(9) should not be used from the interrupt context

[Andrew Cagney <andrew.cagney%gmail.com@localhost>]

The following reply was made to PR kern/57333; it has been noted by GNATS.

From: Andrew Cagney <andrew.cagney%gmail.com@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/57333: subr_kmem.c", line 429 kmem(9) should not be used
 from the interrupt context
Date: Sat, 8 Apr 2023 13:44:44 -0400

 Another one:
 [ 4927.5639025] panic: kernel diagnostic assertion "offset <
 dma->udma_block->size" failed: file
 "/home/cagney/netbsd-build/10/src/sys/dev/usb/usb_mem.c", line 389
 offset 65536 vs 65536
 [ 4927.5639025] cpu0: Begin traceback...
 [ 4927.5639025] trace fp ffffc000ab16f640
 [ 4927.5639025] fp ffffc000ab16f670 vpanic() at ffffc0000058c338
 netbsd:vpanic+0x178
 [ 4927.5639025] fp ffffc000ab16f6d0 kern_assert() at ffffc00000822028
 netbsd:kern_assert+0x58
 [ 4927.5639025] fp ffffc000ab16f760 usb_dmaaddr() at ffffc00000189974
 netbsd:usb_dmaaddr+0x100
 [ 4927.5639025] fp ffffc000ab16f790 dwc2_assign_and_init_hc() at
 ffffc0000042683c netbsd:dwc2_assign_and_init_hc+0x23c
 [ 4927.5639025] fp ffffc000ab16f810 dwc2_hcd_select_transactions() at
 ffffc0000042761c netbsd:dwc2_hcd_select_transactions+0x15c
 [ 4927.5639025] fp ffffc000ab16f880 dwc2_release_channel() at
 ffffc0000042a140 netbsd:dwc2_release_channel+0xe0
 [ 4927.5639025] fp ffffc000ab16f8b0 dwc2_handle_hcd_intr() at
 ffffc0000042c7ec netbsd:dwc2_handle_hcd_intr+0xc48
 [ 4927.5639025] fp ffffc000ab16f930 dwc2_intr() at ffffc00000421c24
 netbsd:dwc2_intr+0xe4
 [ 4927.5639025] fp ffffc000ab16f960 bcm2835_icu_intr() at
 ffffc000000207fc netbsd:bcm2835_icu_intr+0x1c
 [ 4927.5639025] fp ffffc000ab16f990 pic_dispatch() at ffffc0000000286c
 netbsd:pic_dispatch+0x4c
 [ 4927.5639025] fp ffffc000ab16f9e0 pic_do_pending_ints() at
 ffffc00000002edc netbsd:pic_do_pending_ints+0x3ec
 [ 4927.5639025] fp ffffc000ab16faa0 cpu_irq() at ffffc000000b4e28
 netbsd:cpu_irq+0x38
 [ 4927.5639025] tf ffffc000ab16fac0 el1_trap() at ffffc000000b6f84
 netbsd:el1_vectors+0x784
 
 On Sat, 8 Apr 2023 at 12:35, <gnats-admin%netbsd.org@localhost> wrote:
 >
 > Thank you very much for your problem report.
 > It has the internal identification `kern/57333'.
 > The individual assigned to look at your
 > report is: kern-bug-people.
 >
 > >Category:       kern
 > >Responsible:    kern-bug-people
 > >Synopsis:       subr_kmem.c", line 429 kmem(9) should not be used from the interrupt context
 > >Arrival-Date:   Sat Apr 08 16:35:00 +0000 2023
 >