HP Tru64 UNIX V5.1B-4 - AdvFS-Related Kernel Memory Fault Panics



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 Advisory Information

LAST UPDATE: 2008-02-27 (version 2)


ATTENTION: This EA clarifies the content of the ERP kit identified in this document. See the Note in the Resolution section for details.

During normal system operations, HP provided utilities may, when simultaneously accessing an AdvFS indexed directory, create conditions that cause kernel memory fault panics.

The known stack traces are:

0 boot
1 panic
2 trap
3 _XentMM
4 access_invalidate
5 bfs_dealloc
6 bfs_close
7 bs_bfs_close
8 msfs_unmount
9 do_pfs_unmount
10 cfs_stop_server_accept
11 cms_handle_send_msg
12 cms_kgs_callback_thread

(Note: the panic string for the following panic is "neg refCnt")

0 stop_secondary_cpu
1 panic
2 event_timeout
3 printf
4 panic
5 advfs_sad
6 free_acc_struct
7 bs_close_one
8 idx_close_index_file
9 msfs_inactive
10 vrele
11 namei
12 _F64_stat1
13 syscall
14 _Xsyscall


0 boot
1 panic
2 trap
3 _XentMM
4 bs_get_bf_page_cnt
5 msfs_syscall_op_tag_stat
6 msfs_real_syscall
7 msfs_syscall
8 syscall
9 _Xsyscall


HP Tru64 UNIX v 5.1B-4 is the only affected version.


HP is releasing the following Early Release Patch (ERP) kit publicly for use by any customer. The ERP kit uses dupatch to install and will not install over any customer-specific patches (CSPs) that have file intersections with the ERP. Contact your service provider for assistance if the installation of an ERP is blocked by any of your installed CSPs.

NOTE: ERP kit T64KIT1001178-V51BB27-E-20070330.tar, which was released in EA c00892205, is included in the ERP kit identified in this document.

The fix contained in this ERP kit is targeted for availability in the following mainstream patch kit:

HP Tru64 UNIX 5.1B-5

Early Release Patch

HP Tru64 UNIX version: 5.1B-4
ERP Kit Name: T64KIT1001279-V51BB27-E-20070817
Kit Location: