Messages in this thread | | | From | "Witold Baryluk" <> | Date | Tue, 31 May 2011 00:19:08 +0200 | Subject | Re: Kernel OOPS in function_graph_tracer due to the 44259b1abfaa8bb819d25d41d71e8e33e25dd36a commit (x86-64: Move vread_tsc into a new file with sensible options) |
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On 05-30 16:14, Andrew Lutomirski wrote: > On Mon, May 30, 2011 at 12:10 PM, Witold Baryluk > <baryluk@smp.if.uj.edu.pl> wrote: > > Hi, > > > > I found yesterday a problem when booting system on Pentium-M, 32-bit. > > > > I got approximetly this > > > > [ 2.459170] Testing tracer function_graph: > > [ 2.466979] BUG: unable to handle kernel paging request at e421cc10 > > > > > Reverting commit 44259b1abfaa8bb819d25d41d71e8e33e25dd36a on top of current > > kernel make bug disapear. > > > > Disabling CONFIG_FUNCTION_GRAPH_TRACER also make bug dispear. > > > > Of course, the most trivial of my patches was the one with the most > significant bug. Can you try this fix: > > http://git.kernel.org/?p=linux/kernel/git/x86/linux-2.6-tip.git;a=commitdiff;h=89e1be50c68eb5e58b873dce87bbac627ee18d1f > > --Andy
Fix works. :)
Compiled with patch and CONFIG_FUNCTION_GRAPH_TRACER enabled, and booted 4 times without problem
[ 6.611505] Testing dynamic ftrace ops #1: [ 6.771532] Refined TSC clocksource calibration: 3199.859 MHz. [ 6.772337] Switching to clocksource tsc [ 6.919805] (1 0 1 1 0) (1 1 2 1 0) (2 1 3 1 215146) (2 2 4 1 215428) PASSED [ 7.058209] Testing dynamic ftrace ops #2: (1 0 1 213422 0) (1 1 2 213704 0) (2 1 3 1 184) (2 2 4 270 453) PASSED [ 7.646890] Testing tracer irqsoff: PASSED [ 7.754403] Testing tracer preemptoff: PASSED [ 7.860605] Testing tracer preemptirqsoff: PASSED [ 7.970927] Testing tracer wakeup: PASSED [ 8.363620] Testing tracer wakeup_rt: PASSED [ 8.763273] Testing tracer function_graph: PASSED [ 9.052030] HugeTLB registered 2 MB page size, pre-allocated 0 pages [ 9.061322] VFS: Disk quotas dquot_6.5.2 [ 9.065226] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) [ 9.095324] Registering the id_resolver key type [ 9.097664] FS-Cache: Netfs 'nfs' registered for caching [ 9.103503] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 9.111907] fuse init (API version 7.16) [ 9.116706] msgmni has been set to 207 [ 9.143692] cryptomgr_test used greatest stack depth: 6452 bytes left [ 9.163685] alg: No test for fcrypt (fcrypt-generic) [ 9.205037] alg: No test for stdrng (krng) [ 9.452480] NET: Registered protocol family 38 [ 9.456719] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253) [ 9.458912] io scheduler noop registered [ 9.459136] io scheduler deadline registered (default) [ 9.459822] io scheduler cfq registered [ 9.460551] start plist test [ 9.465413] end plist test
Thanks you.
I forgot to check linux-tip/next.
Good work, hope it will land quickly in Linus' tree.
-- Witold Baryluk [unhandled content-type:application/pgp-signature] | |