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From: "alexander.feilke@ew.tq-group.com" <alexander.feilke@ew.tq-group.com>
To: "Tom Rini" <trini@konsulko.com>
Cc: "Fabio Estevam" <festevam@gmail.com>,
	"Simon Glass" <sjg@chromium.org>,
	u-boot@lists.denx.de, u-boot@ew.tq-group.com
Subject: Re: [BUG] silent hangup when debugging  lib/fdtdec.c
Date: Tue, 13 Jan 2026 09:52:35 +0100	[thread overview]
Message-ID: <d6f95-69660800-e9-39c27bc0@93971335> (raw)
In-Reply-To: <302c38-69287300-35-2a0bce00@4807151>

> > Description: U-Boot hangs silently during boot when enabling DEBUG 
> > in lib/fdtdec.c
> > 
> > Not sure if its really a bug or rather a configuration issue on my side.
> > 
> > Minimal steps to reproduce: <see patch>
> > 
> > The hang is caused by `panic("FDT overlap");` later inside the if block.
> > (see `lib/fdtdec.c:1279` in `fdt_find_separate(void)`)
> > 
> > Additionally, no boot log can be seen because serial is initialized after
> > loading the devicetree in this boot stage (see `common/board_r.c:665` in
> > `initcall_run_r(void)`)
> > 
> > Tested on i.MX6 with configs for tqma6d_mba6 and other tq boards that
> > aren't, mainlined yet (tqma6ulx_mba6ul and tqma7d_mba7).
> > 
> > Any idea what to look for to fix this on our side?
> >
> 
> I can boot and reproduce the hangup issue on mx7dsabresd:
> 
> <debug_uart>
> FDT 8787da38 gd 0091de20
> top 87887538 sp 87800000
> sys_init_sp_addr 0091ff10
> gbl_data_size 000000f0
> FDT overlap
> resetting ...
> System reset not supported on this platform
> ### ERROR ### Please RESET the board ###

Just want to revive this topic as the issue is still unresolved.


  parent reply	other threads:[~2026-01-13  8:52 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-27 15:50 [BUG] silent hangup when debugging lib/fdtdec.c alexander.feilke
2025-12-10  8:33 ` alexander.feilke
2026-01-13  8:52 ` alexander.feilke [this message]
2026-01-15 18:50   ` Tom Rini
  -- strict thread matches above, loose matches on Subject: below --
2025-11-25 16:14 Alexander Feilke
2025-11-25 16:35 ` Tom Rini
2025-11-26 10:41   ` alexander.feilke
2025-11-26 14:56     ` Tom Rini
2025-11-27 12:32       ` alexander.feilke
2025-11-27 14:02         ` Fabio Estevam

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