lkml.org 
[lkml]   [2007]   [Jun]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [2/2] 2.6.22-rc4: known regressions v3
    Hi all,

    I have been investigating the random invalid instruction occourances on
    sparc32 (sun4c) and identified that the problem was introduced
    pre-v2.6.22-rc1. v2.6.21 is OK. The first time I have observed the issue
    so far is after commit b46b8f19c9cd435ecac4d9d12b39d78c137ecd66:
    Increase slab redzone to 64bits.

    Prior to this commit there apears to be a problem with the memory
    management (depmod -a causes the system to run out of memory!) that may be
    masking the issue. As a result of this, I am going to try to find the
    'last known good' commit after v2.6.21 to see if this helps narrow down
    the cause.

    Regards
    Mark Fortescue.

    On Thu, 14 Jun 2007, William Lee Irwin III wrote:

    > On Thu, Jun 14, 2007 at 11:30:25AM +0100, Mark Fortescue wrote:
    >> They apear as soon as simpleinit starts up. Somtimes I get to a login
    >> prompt before seeing any. Other times, commands in the simpleinit rc
    >> script fail.
    >> They do apear to be random. If a command failes, you re-run the command
    >> and it is OK. Commands seen to fail are basic (depmod, rm cat ..).
    >> The test I did use the same binaries with both the OK and problem kernels
    >> so it is not a change to the application code, it is definatly a kernel
    >> issue.
    >
    > This sounds like it may be addressed by benh's ptep_set_access_flags()
    > fixes. Those fixes are still in -mm, hopefully to hit mainline by 2.6.22.
    >
    >
    > -- wli
    >
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2007-06-17 13:39    [W:0.020 / U:190.652 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site