|Summary:||blk/ata-sff/unknown-boot-option related backtrace on resume with TuxOnIce|
|Product:||Power Management||Reporter:||Martin Steigerwald (Martin)|
|Severity:||normal||CC:||florian, maciej.rutecki, nigel, rjw|
|Bug Depends on:|
|Bug Blocks:||7216, 16055|
photo of the T23 laptop screen with the last part of the backtrace
configuration of the kernel that showed the backtrace
lspci -nnvv of the ThinkPad T23 that showed the backtrace
Description Martin Steigerwald 2010-08-31 19:28:59 UTC
Created attachment 28681 [details] photo of the T23 laptop screen with the last part of the backtrace Beware, this might well be a TuxOnIce bug, but the backtrace looks quite general so I am reporting it here. I set Nigel Cunningham on Cc, so he can comment too. Last kernel and tuxonice-Version that worked: 126.96.36.199-tp23-toi-188.8.131.52-04990-g3a7d1f4 (Nigel's 2.6.34 TuxOnIce tree). I am testing 184.108.40.206 with TuxOnIce 3.2-rc1 on my ThinkPad T23. After I few hibernation cycles I now got a backtrace on resume. I tried twice before discarding the image. I don't know yet, whether it happens regularily. I am attaching a screenshot of the backtrace. martin@deepdance:~> cat /proc/version Linux version 220.127.116.11-tp23-toi-3.2-rc1-05026-g59f8a60 (martin@deepdance) (gcc version 4.4.4 (Debian 4.4.4-7) ) #2 PREEMPT Fri Aug 27 08:55:54 CEST 2010 martin@deepdance:~#1> cat /sys/power/tuxonice/debug_info TuxOnIce debugging info: - TuxOnIce core : 3.2-rc1 - Kernel Version : 18.104.22.168-tp23-toi-3.2-rc1-05026-g59f8a60 - Compiler vers. : 4.4 - Attempt number : 0 - Parameters : 0 667648 0 0 0 0 - Overall expected compression percentage: 0. - Checksum method is 'md4'. 0 pages resaved in atomic copy. - Compressor is 'lzo'. - Block I/O active. - Max outstanding reads 1. Max writes 1. Memory_needed: 1024 x (4096 + 220 + 76) = 4497408 bytes. Free mem throttle point reached 0. - Swap Allocator enabled. Swap available for image: 246902 pages. - File Allocator active. Storage available for image: 0 pages. - No I/O speed stats available. - Extra pages : 0 used/500. - Result : No hibernation attempts so far.
Comment 1 Martin Steigerwald 2010-08-31 19:31:49 UTC
Created attachment 28691 [details] configuration of the kernel that showed the backtrace
Comment 2 Martin Steigerwald 2010-08-31 19:35:30 UTC
Created attachment 28701 [details] lspci -nnvv of the ThinkPad T23 that showed the backtrace
Comment 3 Rafael J. Wysocki 2010-08-31 20:02:00 UTC
Unfortunately the trace in the attachment is incomplete, so it is hard to say what function triggered it and what kind of a message this is (ie. WARN_ON(), BUG_ON() etc.). Generally, though, there were no hibernate problems reported for 2.6.35.y kernels before.
Comment 4 Nigel Cunningham 2010-09-01 01:34:32 UTC
I'm sorry to say that the report is of no use to me either. Martin, if you get it again, would you try adding "toi_debug_setup toi_pause" to the command line? That will get you more verbose debugging and make TuxOnIce pause (assuming you're using a userui) so you can see what's going on. Nigel
Comment 5 Martin Steigerwald 2010-09-08 17:04:51 UTC
I didn't see this again. I had another backtrace with a kernel with a slightly newer TuxOnIce 3.2-rc2 (instead of rc1), but this one looks TuxOnIce related so I asked on tuxonice-devel mailing list. This can be closed as unreproducable. I can always reopen it if need be. I set tty resolution to vga=791, so next time there should be more to see from the backtrace.
Comment 6 Florian Mickler 2010-09-09 05:42:26 UTC
Alright, thanks for the update.