Bug 808017
| Summary: | [fbfb4d48491b160436e6ac986057a8fe5e320502] Crash in qr_open | ||
|---|---|---|---|
| Product: | [Community] GlusterFS | Reporter: | Anush Shetty <ashetty> |
| Component: | quick-read | Assignee: | Raghavendra G <rgowdapp> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | mainline | CC: | gluster-bugs |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2012-04-03 03:38:01 UTC | Type: | --- |
| Regression: | --- | Mount Type: | fuse |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
CHANGE: http://review.gluster.com/3044 (performance/quick-read: open shouldn't be worried about checking whether it is being done on a deleted dentry.) merged in master by Vijay Bellur (vijay) |
Description of problem: On a single export volume, create a hard link, deleting the target file and reading the link file crashed the fuse client. Version-Release number of selected component (if applicable): Upstream How reproducible: Consistent Steps to Reproduce: 1. touch /mnt/gluster/dot 2. ln /mnt/gluster/dot /mnt/gluster/dot2 3. rm -rf /mnt/gluster/dot 4. cat /mnt/gluster/dot2 Actual results: (gdb) bt #0 __strcmp_ssse3 () at ../sysdeps/x86_64/multiarch/../strcmp.S:214 #1 0x00007f8a363d95c5 in qr_open (frame=0x7f8a3998e230, this=0x2091160, loc=0x2106860, flags=32768, fd=0x20da5bc, xdata=0x0) at quick-read.c:797 #2 0x00007f8a3b15a5bc in default_open (frame=0x7f8a3998e02c, this=0x2092280, loc=0x2106860, flags=32768, fd=0x20da5bc, xdata=0x0) at defaults.c:976 #3 0x00007f8a35fba0a9 in io_stats_open (frame=0x7f8a3998e4e0, this=0x2093340, loc=0x2106860, flags=32768, fd=0x20da5bc, xdata=0x0) at io-stats.c:2026 #4 0x00007f8a35d9bc02 in posix_acl_open (frame=0x7f8a3998e0d8, this=0x2094440, loc=0x2106860, flags=32768, fd=0x20da5bc, xdata=0x0) at posix-acl.c:938 #5 0x00007f8a392ad9e2 in fuse_open_resume (state=0x2106840) at fuse-bridge.c:1873 #6 0x00007f8a392a21e7 in fuse_resolve_done (state=0x2106840) at fuse-resolve.c:453 #7 0x00007f8a392a22bd in fuse_resolve_all (state=0x2106840) at fuse-resolve.c:482 #8 0x00007f8a392a21b0 in fuse_resolve (state=0x2106840) at fuse-resolve.c:439 #9 0x00007f8a392a2294 in fuse_resolve_all (state=0x2106840) at fuse-resolve.c:478 #10 0x00007f8a392a2337 in fuse_resolve_continue (state=0x2106840) at fuse-resolve.c:498 #11 0x00007f8a392a1e95 in fuse_resolve_inode (state=0x2106840) at fuse-resolve.c:325 #12 0x00007f8a392a21a2 in fuse_resolve (state=0x2106840) at fuse-resolve.c:436 #13 0x00007f8a392a223f in fuse_resolve_all (state=0x2106840) at fuse-resolve.c:471 #14 0x00007f8a392a2375 in fuse_resolve_and_resume (state=0x2106840, fn=0x7f8a392ad38c <fuse_open_resume>) at fuse-resolve.c:511 #15 0x00007f8a392adb0f in fuse_open (this=0x207b110, finh=0x21063e0, msg=0x2106408) at fuse-bridge.c:1890 #16 0x00007f8a392b88e9 in fuse_thread_proc (data=0x207b110) at fuse-bridge.c:3962 #17 0x00007f8a3aae5efc in start_thread (arg=0x7f8a35403700) at pthread_create.c:304 #18 0x00007f8a3a82089d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #19 0x0000000000000000 in ?? () (gdb) f 1 #1 0x00007f8a363d95c5 in qr_open (frame=0x7f8a3998e230, this=0x2091160, loc=0x2106860, flags=32768, fd=0x20da5bc, xdata=0x0) at quick-read.c:797 797 if ((strcmp (dentry->name, loc->name) == 0) (gdb) p loc->name $1 = 0x0 (gdb) Expected results: Client shouldn't crash. Additional info: