Bug 7299 - hwinfo hangs when checking VBE when hw-probe runs it (kernel 4.7.2)
: hwinfo hangs when checking VBE when hw-probe runs it (kernel 4.7.2)
Product: Desktop Bugs
Classification: ROSA Desktop
Component: Main Packages
: Fresh
: All Linux
: Normal normal
: ---
Assigned To: ROSA Linux Bugs
: ROSA Linux Bugs
Depends on:
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Reported: 2016-08-25 17:30 MSD by Eugene Shatokhin
Modified: 2016-08-25 17:30 MSD (History)
1 user (show)

See Also:
RPM Package: hw-probe-0.9.2-4-rosa2014.1.x86_64, hwinfo-20.2-3-rosa2014.1.x86_64
Bad POT generating:


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Description Eugene Shatokhin 2016-08-25 17:30:11 MSD
When I was testing kernel 4.7.2 on a system with Radeon RX 460 GPU, I ran hw-probe and it seemd to hang.

I narrowed down the problem to "/usr/sbin/hwinfo --vbe" - it hangs on that system even if run explicitly, not only when hw-probe runs.

GDB shows that hwinfo is constantly doing something during that time rather than just sleeping.
Common part of the backtrace:
#5  0x00007f80968faf80 in x86emu_run (emu=emu@entry=0x150a490, flags=flags@entry=25) at decode.c:245
#6  0x00007f8096f1c981 in vm_run (emu=emu@entry=0x150a490, t=t@entry=0x7ffd8b6983d8) at mdt.c:327
#7  0x00007f8096f1d10b in list_modes (vm=vm@entry=0x1518e30, vbe=vbe@entry=0x14bf790) at mdt.c:557
#8  0x00007f8096f1e2f4 in get_vbe_info (hd_data=0x1310010, vbe=0x14bf790) at mdt.c:181
#9  0x00007f8096f24b58 in hd_scan_bios (hd_data=0x1310010) at bios.c:451
#10 0x00007f8096f08fed in hd_scan_no_hal (hd_data=<optimized out>) at hd.c:2019
#11 hd_scan (hd_data=0x13, hd_data@entry=0x1310010) at hd.c:1905
#12 0x00007f8096f0a22d in hd_list2 (hd_data=hd_data@entry=0x1310010, items=items@entry=0x609000 <hw_item>, rescan=rescan@entry=1) at hd.c:3344
#13 0x0000000000404c8b in do_hw_multi (hd_data=hd_data@entry=0x1310010, f=f@entry=0x0, hw_items=hw_items@entry=0x609000 <hw_item>) at hwinfo.c:699
#14 0x0000000000402757 in main (argc=<optimized out>, argv=0x7ffd8b698eb8) at hwinfo.c:364

On the kernel 4.6.5 with the same hardware and VESA graphics hwinfo seems to complete OK: http://hw.rosalinux.ru/index.php?probe=72dd80da38